Buick Vehicle Models Verano 2012-2017 Torque Specifications
Buick Vehicle Models Verano 2012-2017

Buick Vehicle Models Verano 2012-2017 Torque Specifications

Complete Buick Vehicle Models Verano 2012-2017 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Torque Calculator

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2.0l Engine

Torque specifications for 2.0L Engine

Cylinder Head

1

Cylinder Head Bolts (long)

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 70° 3. 50°
Important Notes
Torque-to-yield bolts, must be replaced after removal. Follow specific torque sequence (typically start from center and spiral outwards).
2

Cylinder Head Bolts (short)

M8 x 1.25
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 70° 3. 50°
Important Notes
Torque-to-yield bolts, must be replaced after removal. Follow specific torque sequence (typically start from center and spiral outwards).

Camshaft

1

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Ensure proper cap orientation. Tighten in sequence (typically from the center outwards).

Connecting Rod

1

Connecting Rod Cap Bolts

M9 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m) 2. 65°
Important Notes
Torque-to-yield bolts. Must be replaced after removal. Apply a thin layer of engine oil to the bolt threads. Tighten in alternating pattern.

Crankshaft Main Bearing

1

Crankshaft Main Bearing Cap Bolts (M10)

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 65°
Important Notes
Torque-to-yield bolts. Must be replaced after removal. Tighten in specified sequence.
2

Crankshaft Main Bearing Cap Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten in specified sequence.

Oil Pan

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly in a criss-cross pattern to ensure proper sealing. Use a new gasket.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a new crush washer.

Flywheel Flexplate

1

Flywheel/Flexplate Bolts

M10 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Apply thread locker to bolt threads.

Intake Manifold

1

Intake Manifold Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten in specified sequence (typically center outwards). Use a new gasket.

Exhaust Manifold

1

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten in specified sequence (typically center outwards). Use a new gasket if needed.

Valve Cover

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly in a criss-cross pattern to prevent leaks. Use a new gasket.

Timing Chain

1

Timing Chain Tensioner Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure tensioner is properly positioned before tightening.

Water Pump

1

Water Pump Bolts (M6)

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to prevent leaks. Use a new gasket.
2

Water Pump Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten evenly to prevent leaks. Use a new gasket.

Thermostat Housing

1

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use a new gasket, tighten evenly.

Alternator

1

Alternator Mounting Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Alternator Mounting Bolts (M10)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment before tightening.

Power Steering Pump

1

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening.

Ac Compressor

1

Air Conditioning Compressor Mounting Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening.
2

Air Conditioning Compressor Mounting Bolts (M10)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment before tightening.

Starter

1

Starter Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment before tightening.

Crankshaft Harmonic Balancer

1

Crankshaft Harmonic Balancer Bolt

M16 x 2.0
Torque Specification
1. 74 ft-lbs (100 N·m) 2. 80°
Important Notes
Torque-to-yield bolt, must be replaced after removal. Use a suitable crankshaft holding tool.

Turbocharger System

1

Turbocharger Mounting Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten in specified sequence. Estimated value.
2

Turbocharger Mounting Bolts (M10)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Tighten in specified sequence. Estimated value.
3

Turbocharger Oil Inlet/Outlet Bolts (M6)

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use new sealing washers. Estimated value.
4

Turbocharger Oil Inlet/Outlet Bolts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use new sealing washers. Estimated value.
5

Turbocharger Coolant Line Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use new sealing washers. Estimated value.
6

Intercooler Pipe Clamps

N/A
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
Do not overtighten, as it can damage the clamps and piping. Estimated value.

2.4l Engine

Torque specifications for 2.4L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 80° 3. 60°
Important Notes
Use new bolts. Tighten in sequence as per the service manual. These are torque-to-yield bolts and should be replaced after every use.
2

Camshaft Bearing Cap Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to avoid distortion and ensure proper alignment.
3

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to avoid distortion and ensure proper sealing of the valve cover gasket.

Engine Block Internals

1

Connecting Rod Bolts

M9 x 1.25
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 60°
Important Notes
Use new bolts. Tighten in the specified sequence. These are torque-to-yield bolts.
2

Main Bearing Cap Bolts

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 N·m) 2. 80°
Important Notes
Tighten in the specified sequence. Proper torque is critical for crankshaft alignment.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly in a criss-cross pattern to prevent leaks.
4

Oil Pump Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to ensure proper pump alignment and function.

Intake Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten evenly in a criss-cross pattern to ensure proper sealing and prevent vacuum leaks.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten evenly to ensure a proper seal and prevent exhaust leaks.
3

Exhaust Downpipe Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Tighten evenly to prevent leaks. Ensure proper alignment before tightening.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to ensure a proper seal and prevent coolant leaks.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly to ensure proper sealing and prevent coolant leaks.

Engine Accessories

1

Starter Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Tighten evenly to ensure secure mounting.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Tighten securely to prevent vibration and movement during engine operation.
3

AC Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten to prevent vibration and ensure correct alignment.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten securely to ensure correct tensioner operation.
2

Timing Chain Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten evenly in a criss-cross pattern to ensure proper sealing and prevent oil leaks.

6t40 Transmission

Torque specifications for 6t40 Transmission

Transmission Case And Housing

1

Transmission Case Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Tighten in a cross pattern in multiple stages to ensure even clamping pressure. Estimated value based on industry standard.
2

Transmission Side Cover Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten in a cross pattern. Estimated value based on similar applications.
3

Valve Body Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern. Over-tightening can damage the valve body. Estimated value based on industry standard.
4

Transmission Fluid Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern. Ensure even seal compression to prevent leaks. Estimated value based on industry standard.
5

Transmission Mount Bolts to Case

M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Safety-critical fastener. Estimated based on similar GM transmission applications and bolt size.

Internal Components

1

Input Shaft Support Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar GM transmission applications and bolt size.
2

Output Shaft Support Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar GM transmission applications and bolt size.
3

Control Valve Solenoid Mounting Bolts

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Correct torque is crucial for proper solenoid operation. Estimated value based on industry standard.
4

Park Pawl Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar GM transmission applications and bolt size.
5

Internal Filter Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure filter is properly seated before tightening. Estimated value based on similar GM transmission applications and bolt size.

External Components

1

Transmission Range Sensor Bolts

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Over-tightening can damage the sensor. Estimated value based on industry standard.
2

Transmission Fluid Cooler Line Fittings

N/A
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a backup wrench on the fitting to prevent damage. Estimated value based on industry standard for similar fittings. Check specific fitting type for torque specification.
3

Transmission Cooler Lines to Radiator Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment of cooler lines. Estimated value based on industry standard.

Body

Torque specifications for Body

Front Bumper Fascia

1

Bumper Fascia to Fender Bolts (Upper)

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on similar GM models and standard M6 bolt torques.
2

Bumper Fascia to Lower Support Bolts/Screws

Self-tapping screw (estimated #10)
Torque Specification
0.37 ft-lbs (5 N·m)
Important Notes
Estimated value based on similar GM models and industry standards for self-tapping screws.
3

Bumper Beam to Frame Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Based on similar GM sedan bumper beam torque specifications.

Grille

1

Grille to Fascia Bolts/Screws

Self-tapping screw (estimated #8)
Torque Specification
0.14 ft-lbs (1.9 N·m)
Important Notes
Based on industry standards for plastic fasteners.

Hood

1

Hood Hinge to Hood Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Based on similar GM car hood hinge torque specifications.
2

Hood Hinge to Body Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Based on similar GM car hood hinge torque specifications.
3

Hood Latch to Core Support Bolts

M6 x 1.0
Torque Specification
0.74 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar GM cars and M6 bolt torque specifications.

Fenders

1

Fender to Body Bolts (Upper)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Based on similar GM sedan fender bolt specifications.
2

Fender to Rocker Panel Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on similar GM sedan fender and rocker panel bolt specifications.
3

Fender to Front Bumper Bracket Bolts

M6 x 1.0
Torque Specification
0.74 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar GM sedan fender and bumper support bracket specifications.

Doors

1

Door Hinge to Door Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Based on similar GM car door hinge torque specifications.
2

Door Hinge to Body Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Based on similar GM car door hinge torque specifications.
3

Door Latch to Door Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Based on similar GM car door latch specifications.
4

Door Striker to Body Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Based on similar GM car door striker specifications.

Rear Bumper Fascia

1

Bumper Fascia to Body Bolts/Screws

Self-tapping screw (estimated #10)
Torque Specification
0.44 ft-lbs (6 N·m)
Important Notes
Estimated value based on similar GM models using self-tapping screws for plastic components.
2

Bumper Beam to Frame Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Based on similar GM sedan bumper beam torque specifications.

Trunk Liftgate

1

Trunk/Liftgate Hinge to Body Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar GM sedan trunk/liftgate hinge specifications.
2

Trunk/Liftgate Hinge to Trunk/Liftgate Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar GM sedan trunk/liftgate hinge specifications.
3

Trunk Latch to Body Bolts

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar GM sedan trunk latch specifications.

Seats

1

Seat to Floor Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Based on industry standards for seat mounting and similar GM models. SAFETY CRITICAL: Ensure proper torque to prevent seat detachment in a collision.

Interior Panels

1

Interior Trim Panel Bolts/Screws

Self-tapping screw (estimated #8)
Torque Specification
0.29 ft-lbs (4 N·m)
Important Notes
Based on standard torques for plastic interior components.

Brakes

Torque specifications for Brakes

Front Brakes

1

Front Caliper Guide Pin Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Proper torque is crucial for smooth caliper operation, preventing binding, and ensuring consistent braking force. Estimated value based on similar models and industry standards.
2

Front Caliper Bracket Bolts

M12 x 1.75
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Correct torque is essential to maintain a strong and stable foundation for the entire caliper and braking system. Estimated based on similar GM compact vehicle specs. Tighten in a cross-pattern.
3

Front Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Proper torque is important to ensure a leak-free connection and maintain hydraulic pressure within the braking system. Overtightening may damage sealing washers, leading to leaks. Industry standard for similar-sized brake banjo bolts.
4

Front Brake Rotor Retaining Bolt

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
These small bolts hold the brake rotor against the hub during assembly, not under normal braking conditions. Estimated, based on standard for small rotor retaining bolts.

Rear Disc Brakes

1

Rear Caliper Guide Pin Bolts (Disc)

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
These bolts function identically to the front caliper guide pins. Estimated, based on similar GM vehicles and industry standards.
2

Rear Caliper Bracket Bolts (Disc)

M12 x 1.75
Torque Specification
68 ft-lbs (92 N·m)
Important Notes
Correct torque provides stability for the rear braking system. Estimated based on similar GM compact vehicle specs. Tighten in a cross pattern.
3

Rear Brake Hose Banjo Bolt (Disc)

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the brake hose to the caliper, identical function as the front banjo bolt. Industry Standard for similar sized banjo bolts in brake systems.
4

Rear Rotor Retaining Bolt (Disc)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Same function as front rotor retaining bolts; to keep the rotor in place during assembly. Estimated, based on standard for small rotor retaining bolts.

Rear Drum Brakes

1

Rear Wheel Cylinder Bolts (Drum)

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Secures the wheel cylinder to the backing plate. Industry standard for similar wheel cylinder bolts.
2

Brake Shoe Retaining Spring Pins

N/A
Torque Specification
N/A
Important Notes
These are *not* torqued. They are installed with specific spring tools. Holds the brake shoes against the backing plate.
3

Backing Plate bolts

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
These bolts secure the drum brake backing plate to the axle or suspension. Estimated from similar GM vehicle drum brake backing plate specs.

Master Cylinder And Booster

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Secures the master cylinder to the brake booster/firewall. Estimated based on similar GM vehicle specs.
2

Brake Booster Mounting Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
These bolts secure the brake booster to the firewall. Estimated based on similar GM vehicle brake booster bolts.

Abs System

1

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the wheel speed sensor to the knuckle/hub. Industry standard for similar small electronic sensor bolts.

Drivetrain

Torque specifications for Drivetrain

Transmission Transaxle

1

Transmission Case Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the two halves of the transmission case together. Proper torque is crucial for maintaining fluid seals and structural integrity. Estimated value based on industry standard for this bolt size.
2

Transmission Mount Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Attaches the transmission to the vehicle's frame. Proper torque is critical for vibration control, secure engine/transmission alignment, and preventing movement. Estimated value based on similar applications.
3

Transmission Pan Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Secures the transmission pan to the transmission case. Prevents fluid leaks and ensures proper sealing. Torque in a star pattern. Estimated value based on similar applications.
4

Transmission Fluid Drain Plug

M18 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Seals the transmission fluid drain hole to prevent leaks. Over tightening can damage the case. Estimated value based on industry standard.
5

Torque Converter Bolts to Flexplate

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Connects the torque converter to the engine's flexplate, transmitting engine power to the transmission. These bolts usually require a thread locking compound. Estimated value based on similar applications.
6

Transmission Control Module (TCM) Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Attaches the TCM to the transaxle case. Proper torque is necessary for a secure connection. Estimated value based on similar applications.

Differential

1

Differential Cover Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Secures the differential cover. These should be torqued in a star pattern. Estimated value based on industry standard.
2

Differential Carrier Bearing Cap Bolts

M10 x 1.5
Torque Specification
1. 48 ft-lbs (65 N·m) 2. 45°
Important Notes
Secures the differential bearings. This is critical for proper preload. Angular torque procedure. Estimated value based on similar applications.
3

Differential Ring Gear Bolts

M10 x 1.25
Torque Specification
1. 52 ft-lbs (70 N·m) 2. 45°
Important Notes
Fastens the ring gear to the differential case. This is essential for proper power transmission. These will likely need to be torqued in a star pattern. Angular torque procedure. Estimated value based on similar applications.

Drive Axles Halfshafts

1

Inner CV Joint Bolts to Transmission

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the inner CV joint to the transmission. Important for transmitting power from the transaxle to the wheels. Estimated value based on similar applications.
2

Wheel Hub/Bearing Assembly Bolts

M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Attaches the wheel hub to the steering knuckle. Proper torque ensures secure wheel mounting and bearing life. Estimated value based on similar applications.
3

Axle Nut (Front Wheel Hub)

M24 x 1.5
Torque Specification
155 ft-lbs (210 N·m)
Important Notes
Secures the drive axle to the wheel hub. Critical for wheel retention. Always use a new axle nut. Estimated value based on similar applications.
4

Outer CV Joint-to-Hub Nut

M24 x 1.5
Torque Specification
155 ft-lbs (210 N·m)
Important Notes
Holds the CV joint in the wheel hub. Proper torque is essential for joint stability and wheel security. Estimated value based on similar applications.

Engine To Transmission

1

Engine-to-Transmission Bellhousing Bolts

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Secures the transmission to the engine block. Proper torque is critical for preventing misalignment and vibration. These may require a specific tightening sequence. Estimated value based on industry standard.
2

Starter Motor Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the starter to the bellhousing. Proper torque is needed for starter alignment and secure mount. Estimated value based on similar applications.

Electrical

Torque specifications for Electrical

Battery System

1

Battery Terminal Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on industry standard for battery terminal connections. Ensure terminals and cable ends are clean before assembly to prevent corrosion and resistance.
2

Battery Hold-Down Bolt

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar battery hold-down designs in Buick models. Do not overtighten, as this can damage the battery tray or battery casing.

Charging Starting System

1

Starter Motor Mounting Bolts (Engine Side)

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value based on similar Buick models. Critical to ensure proper starter engagement and alignment. Use high tensile bolts. CRITICAL torque value.
2

Starter Solenoid Mounting Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on industry standard for small bolt connections. Ensures secure solenoid connection.
3

Alternator Mounting Bolts (Engine Side)

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value based on similar Buick models. Critical for maintaining alignment and preventing vibration. Use high tensile bolts. CRITICAL torque value.
4

Alternator Wiring Harness Connector Bolt (if applicable)

M5 x 0.8
Torque Specification
0.7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar sized electrical connectors. Ensures the connector is secure and does not vibrate loose. Do not over tighten this bolt.

Ground Connections

1

Ground Strap Bolts (Engine Compartment)

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar Buick models and industry standard. Ensure mating surfaces are clean and free of corrosion to ensure proper electrical contact.
2

Wire Harness Grounding Stud Nuts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar Buick models and industry standard. Ensure all terminals are stacked correctly on the stud and the stud and nuts are clean.

Ecm Bcm Modules

1

Engine Control Module (ECM) Mounting Bolts

M6 x 1.0
Torque Specification
0.7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical ECM mounting. Do not over tighten these screws, it can damage the ECM case. Use caution.
2

Body Control Module (BCM) Mounting Bolts

M6 x 1.0
Torque Specification
0.7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical BCM mounting. Do not over tighten these screws, it can damage the BCM case. Use caution.

Power Distribution

1

Fuse Box/Power Distribution Block Mounting Bolts

M6 x 1.0
Torque Specification
0.7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar Buick models and industry standard. These bolts secure the fuse box or power distribution block to the chassis.
2

Main Power Distribution Center Positive Terminal Connection

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar high current terminal connection points. This is a critical connection for main vehicle power. Do not overtighten this terminal.
3

Under Hood Fuse Box Terminal Screws

M5 x 0.8
Torque Specification
0.7 ft-lbs (10 N·m)
Important Notes
Estimated based on industry standard. These screws secure terminal connections inside the fuse panel. It is vital for the safe and reliable operation of vehicle electronics.

Lighting

1

Headlight Housing Mounting Bolts/Screws

M5 x 0.8
Torque Specification
0.3 ft-lbs (4 N·m)
Important Notes
Estimated based on industry standard for fastener size and material. Over tightening can cause damage to the housing.
2

Taillight Housing Mounting Bolts/Screws

M5 x 0.8
Torque Specification
0.3 ft-lbs (4 N·m)
Important Notes
Estimated based on industry standard for fastener size and material. Over tightening can crack the plastic.

Interior Electronics

1

Instrument Panel Cluster Mounting Screws

M4 x 0.7
Torque Specification
0.1 ft-lbs (2 N·m)
Important Notes
Estimated based on industry standard for size and material of dash components. Over tightening can cause damage to the dash or instrument cluster.
2

Interior Control Module (Such as Radio/HVAC) Mounting Bolts/Screws

M4 x 0.7
Torque Specification
0.1 ft-lbs (2 N·m)
Important Notes
Estimated based on industry standard for size and material of interior components. Over tightening can cause damage to the module or mounting bracket.

Sensors

1

Sensor Mounting Bolts (Crank, Cam, MAF, etc.)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on similar Buick models. Ensures a secure mount for proper signal reading. Over tightening can damage the sensor itself or the engine or intake manifold. Do not over tighten sensor mounting bolts.

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensors

1

Pre-Catalyst Oxygen Sensor Mounting

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards for M18 oxygen sensors. Ensure the threads are clean and the sensor is properly seated before applying torque. Overtightening can damage the sensor or exhaust threads.
2

Post-Catalyst Oxygen Sensor Mounting

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards for M18 oxygen sensors. Ensure the threads are clean and the sensor is properly seated before applying torque. Overtightening can damage the sensor or exhaust threads.

Intake Air System

1

Mass Air Flow (MAF) Sensor Mounting

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in plastic or aluminum housings. Avoid overtightening, as it can crack the sensor housing. Ensure the sensor is seated flush against the mating surface before tightening.

Evaporative Emissions System

1

EVAP Purge Valve Mounting

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in plastic or aluminum housings. Verify bolt size before applying torque. Overtightening can damage the valve or the mounting surface. Use a torque wrench for accuracy.
2

EVAP Purge Valve Mounting (M8)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards for M8 bolts in plastic or aluminum housings. Verify bolt size before applying torque. Overtightening can damage the valve or the mounting surface. Use a torque wrench for accuracy.
3

EVAP Canister Mounting

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in automotive chassis. Verify bolt size before applying torque. Ensure the canister is properly seated before tightening the bolts.
4

EVAP Canister Mounting (M8)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards for M8 bolts in automotive chassis. Verify bolt size before applying torque. Ensure the canister is properly seated before tightening the bolts.
5

EVAP Vent Valve Mounting

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in plastic or aluminum housings. Verify bolt size before applying torque. Ensure the valve is properly seated before tightening the bolts.

Fuel System

1

Fuel Tank Pressure Sensor Mounting (M5)

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on industry standards for M5 bolts in plastic housings. Verify bolt size before applying torque. Avoid overtightening, as it can damage the sensor housing. Ensure the sensor is seated flush against the mating surface before tightening.
2

Fuel Tank Pressure Sensor Mounting (M6)

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in plastic housings. Verify bolt size before applying torque. Avoid overtightening, as it can damage the sensor housing. Ensure the sensor is seated flush against the mating surface before tightening.

Intake Manifold System

1

Manifold Absolute Pressure (MAP) Sensor Mounting (M5)

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on industry standards for M5 bolts in plastic housings. Verify bolt size before applying torque. Avoid overtightening, as it can damage the sensor housing or cause leaks. Ensure the sensor is seated flush against the mating surface before tightening.
2

Manifold Absolute Pressure (MAP) Sensor Mounting (M6)

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standards for M6 bolts in plastic housings. Verify bolt size before applying torque. Avoid overtightening, as it can damage the sensor housing or cause leaks. Ensure the sensor is seated flush against the mating surface before tightening.

Catalytic Converter System

1

Catalytic Converter Flange Bolts (M10)

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standards for M10 exhaust flange bolts. Apply torque in a star pattern to ensure even clamping and prevent leaks. Ensure proper bolt engagement before tightening.
2

Catalytic Converter Flange Bolts (M12)

M12 x 1.75
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on industry standards for M12 exhaust flange bolts. Apply torque in a star pattern to ensure even clamping and prevent leaks. Ensure proper bolt engagement before tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten in a crisscross pattern, starting from the center and working outwards. Torque in stages (30% then 75% and then final torque) is best.
2

Exhaust Manifold Heat Shield Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on bolt size and application. Be careful not to overtighten, as the heat shield is thin and can be easily deformed.
3

Exhaust Manifold to Catalytic Converter Flange Bolts/Nuts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a crisscross pattern to ensure even clamping. Torque in stages (50% then 100%) is best. Always use a new gasket.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe/Resonator Flange Bolts/Nuts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Tighten in a crisscross pattern to ensure even clamping. Torque in stages (50% then 100%) is best. Always use a new gasket.

Exhaust Piping

1

Exhaust Pipe/Resonator Hangers/Bracket Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on size and application. Ensure the brackets are properly aligned before tightening.
2

Muffler Inlet Flange Bolts/Nuts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a crisscross pattern to ensure even clamping. Torque in stages (50% then 100%) is best. Always use a new gasket.
3

Muffler Outlet Flange Bolts/Nuts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a crisscross pattern to ensure even clamping. Torque in stages (50% then 100%) is best. Always use a new gasket.
4

Exhaust System Clamps

N/A
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
This torque applies to standard exhaust band clamps. Some U-bolt clamps may require different torques, or may be tightened until 'snug' only. Verify clamp type before tightening.

Heat Shields

1

Heat Shield Bolts/Nuts (Along Exhaust System)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar heat shield applications. Do not over-tighten to prevent damage to the heat shield.

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Port on Manifold/Downpipe

Varies
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque value is a guide only. Most oxygen sensors are generally tightened by hand until snug, plus a further 1/4 to 1/2 turn. Avoid over-tightening, as this can damage the sensor.

Fuel

Torque specifications for Fuel

Fuel Pump Module

1

Fuel Pump Module Retaining Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the fuel pump module to the fuel tank. Proper torque is critical to prevent fuel leaks and ensure the pump assembly remains properly seated. Based on similar GM models and industry standards for fuel pump retaining bolts.

Fuel Tank

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Secures the fuel tank to the vehicle chassis. Under-torquing can lead to a shifting tank and potential damage. Over-torquing can distort or damage the straps. Based on similar GM models and industry standards for fuel tank straps.

Fuel Lines

1

Fuel Line Quick-Connect Retaining Clip Screws

M4 x 0.7
Torque Specification
0.41 ft-lbs (0.55 N·m)
Important Notes
These small screws secure the quick-connect retaining clips. Over-torquing can damage the clips or quick connects, leading to fuel leaks. Estimated value based on industry standards for small plastic component mounting screws.
2

Fuel Line Fitting Connection

N/A
Torque Specification
N/A
Important Notes
Follow the torque value provided with the specific fitting type, if any. Fuel line fittings have varying specs depending on the material. It’s critical to follow the manufacturer’s recommendations for these connections to prevent leaks. Torque specifications will vary by fitting type, ensure to refer to manufacture data for your specific fuel line fitting.

Fuel Filter

1

Fuel Filter Bracket Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Secures the fuel filter to the vehicle body or chassis. Ensures the filter is held securely and prevents damage from vibration. Based on similar GM models and industry standards for fuel filter brackets.

Fuel Injectors And Rail

1

Fuel Injector Retaining Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts secure the fuel injector rail to the intake manifold. Proper torque is necessary for proper sealing of injectors and fuel rail. Based on similar GM models and industry standards for fuel rail mounting.
2

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Fastens the fuel rail to the intake manifold. Ensures a secure mounting point for the fuel injectors. Over or under torquing can lead to leaks or injector damage. Based on similar GM models and industry standards for fuel rail mounting.

High Pressure Fuel Pump

1

High-Pressure Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts hold the high-pressure fuel pump onto the engine block. This is a high-stress area, and proper torque is critical for proper pump operation and sealing. Based on similar GM models and industry standards for high-pressure fuel pump mounting.

Fuel Pressure Sensor

1

Fuel Pressure Sensor Mounting Screw

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
The sensor threads into the fuel rail. This low torque is required to prevent damage to the delicate sensor and ensure it seals properly. Based on industry standard for fuel pressure sensor mounting.

Evap System

1

EVAP Canister Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
These secure the Evaporative Emissions (EVAP) canister. This ensures it's properly mounted and does not vibrate loose. Based on similar GM models and industry standards for EVAP canister mounting.
2

EVAP Purge Solenoid Mounting Screws

M4 x 0.7
Torque Specification
0.41 ft-lbs (0.55 N·m)
Important Notes
These secure the small purge solenoid. They don’t need high torque to maintain secure connection. Over-tightening can damage the solenoid. Estimated value based on industry standards for small plastic component mounting screws.
3

Fuel Tank Vent Line Connection

N/A
Torque Specification
N/A
Important Notes
These plastic connections should not be over tightened, as over tightening may crack or damage the material. Follow manufacturer’s specifications when tightening. Based on industry standard for plastic vapor line connections.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten bolts in a criss-cross pattern to ensure even clamping force. Estimated value based on similar GM models and industry standards.
2

A/C Compressor Clutch Bolt

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar GM models and industry standards for compressor clutches.
3

A/C Line Connection Bolts (Compressor)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Use a torque wrench. Over-torquing can crush the o-ring or fitting, causing refrigerant leaks. Estimated value based on similar GM models and aluminum fitting standards.

Ac Condenser

1

A/C Condenser Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar GM models and industry standards.
2

A/C Condenser Line Connection Bolts (Condenser)

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Use a torque wrench. Over-tightening can damage the soft aluminum fittings. Estimated value based on similar GM models and aluminum fitting standards.

Ac Evaporator

1

A/C Evaporator Housing Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on similar GM models and industry standards.
2

A/C Evaporator Core Line Connection Bolts (Evaporator)

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Over-torquing can damage the o-rings or the fittings on the evaporator. Estimated value based on similar GM models and aluminum fitting standards.

Hvac Actuators

1

HVAC Blend Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
3.75 ft-lbs (5 N·m)
Important Notes
Tighten screws carefully to avoid damaging plastic housing. Estimated value based on industry standards for plastic-mounted actuators. Converted from 45 in-lbs to ft-lbs.
2

HVAC Mode Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
3.75 ft-lbs (5 N·m)
Important Notes
Tighten screws carefully to avoid damaging plastic housing. Estimated value based on industry standards for plastic-mounted actuators. Converted from 45 in-lbs to ft-lbs.
3

HVAC Recirculation Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
3.75 ft-lbs (5 N·m)
Important Notes
Tighten screws carefully to avoid damaging plastic housing. Estimated value based on industry standards for plastic-mounted actuators. Converted from 45 in-lbs to ft-lbs.

Blower Motor

1

Blower Motor Mounting Screws

M4.2 x 1.41
Torque Specification
4.17 ft-lbs (5.6 N·m)
Important Notes
Tighten screws carefully to avoid damaging plastic housing. Often self-tapping screws going into plastic. Estimated value based on industry standards for blower motor mounting. Converted from 50 in-lbs to ft-lbs.

Hvac Controls

1

HVAC Control Panel Mounting Screws/Bolts (Dash)

M4 x 0.7
Torque Specification
3.33 ft-lbs (4.5 N·m)
Important Notes
Tighten screws carefully to avoid damaging plastic dashboard. Estimated value based on industry standards for dashboard components. Converted from 40 in-lbs to ft-lbs.

Cabin Air Filter

1

Cabin Air Filter Housing Screws

M4 x 0.7
Torque Specification
2.92 ft-lbs (4 N·m)
Important Notes
Over tightening isn't critical, but can potentially damage the plastic if excessive. Estimated value based on similar GM model components. Converted from 35 in-lbs to ft-lbs.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut-to-Steering Knuckle Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on similar vehicles and bolt size. These bolts connect the strut to the steering knuckle.
2

Strut Mount to Body Bolts (Upper Mount)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value. These bolts secure the strut assembly to the vehicle's body.
3

Sway Bar Link to Strut Bolt

M10 x 1.5
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Estimated value. These secure the sway bar link to the strut assembly.
4

Sway Bar Link to Sway Bar Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value. These connect the sway bar to the sway bar link.
5

Sway Bar Bracket Bolts to Frame

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Secures the sway bar brackets to the chassis.
6

Lower Control Arm Ball Joint Pinch Bolt

M12 x 1.75
Torque Specification
1. 48 ft-lbs (65 N·m) 2. 45°
Important Notes
Critical fastener. Estimated bolt size. Follow the torque-angle sequence.
7

Lower Control Arm to Frame Bolts

M14 x 2.0
Torque Specification
92 ft-lbs (125 N·m)
Important Notes
Estimated value. These bolts secure the control arm to the frame.
8

Tie Rod End Jam Nut

M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value. Secures the tie rod end in position.
9

Axle Nut

M24 x 2.0
Torque Specification
155 ft-lbs (210 N·m)
Important Notes
Estimated value. Critical for wheel hub assembly retention.
10

Brake Caliper Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value, secures caliper to bracket.
11

Brake Caliper Bracket Bolts

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value. Secures bracket to the steering knuckle/axle carrier.

Rear Suspension

1

Shock Absorber Lower Bolt

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value. Attaches the shock to the lower control arm or axle.
2

Shock Absorber Upper Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value. Secures the upper portion of the shock to the frame.
3

Rear Lower Control Arm to Body Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value. Secures the lower control arm to the body.
4

Rear Upper Control Arm to Body Bolts

M12 x 1.75
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Estimated value. Secures the upper control arm to the frame.
5

Rear Trailing Arm Bolt

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value. Attaches the trailing arm to the chassis.
6

Rear Wheel Hub/Bearing Mounting Bolts

M12 x 1.75
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value. Connects the hub assembly to the rear knuckle.
7

Rear Brake Caliper Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value. Secure the caliper to the bracket.
8

Rear Brake Caliper Bracket Bolts

M12 x 1.75
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value. Secures bracket to the knuckle.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque specification for the engine cylinder head bolts on a 2012-2017 Buick verano?

The specified torque for the engine cylinder head bolts IS 80 ft-lbs +/- 5 ft-lbs (108 Nm +/- 7 Nm).

Q2

What IS the proper bolt tightening sequence for the intake and exhaust manifold on a 2014 Buick verano?

For the intake manifold, follow this sequence: bolts 1, 3, 5, 4, 2, 6. For the exhaust manifold, tighten bolts 1, 3, 5, 2, 4 in sequence.

Q3

What type of torque wrench IS recommended for achieving precise torque specifications on a 2016 Buick verano?

A high-quality, calibrated click-type torque wrench IS highly recommended for accurate torque application. Ensure it covers the required torque range and has been recently calibrated.

Q4

Can I use a torque specification for a different model or year range on my 2012 Buick verano?

No, torque specifications are vehicle-specific and can vary significantly. Always refer to the official service manual for your specific model and year range to obtain accurate torque values.

Q5

What are the consequences of over-tightening or under-tightening bolts on a 2015 Buick verano?

Over-tightening can cause bolt stretching or breakage, while under-tightening can lead to loose components or fastener failure. Both scenarios can compromise vehicle safety and performance.

Q6

Where can I find additional torque specifications for other components on my 2017 Buick verano?

Refer to the comprehensive vehicle service manual or contact an authorized Buick dealership for complete torque specifications and detailed repair procedures.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the Verano.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures
Technical Service Bulletins

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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