Buick Vehicle Models Regal 1997-2004 Torque Specifications
Buick Vehicle Models Regal 1997-2004

Buick Vehicle Models Regal 1997-2004 Torque Specifications

Complete Buick Vehicle Models Regal 1997-2004 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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

3.8l Engine

Torque specifications for 3.8L Engine

Cylinder Head

1

Cylinder Head Bolts (Long)

M11 x 1.5
Torque Specification
1. 65 ft-lbs (88 N·m) 2. 90°
Important Notes
Torque sequence is critical: 1-10, 2-9, 3-8, 4-7, 5-6, 6-5, 7-4, 8-3, 9-2, 10-1. Replace these bolts after loosening.
2

Cylinder Head Bolts (Short)

M11 x 1.5
Torque Specification
1. 55 ft-lbs (75 N·m) 2. 90°
Important Notes
Torque sequence is critical: 1-10, 2-9, 3-8, 4-7, 5-6, 6-5, 7-4, 8-3, 9-2, 10-1. Replace these bolts after loosening.
3

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Over-tightening can warp the valve cover. Torque evenly.
4

Rocker Arm Studs

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque evenly to prevent damage or misalignment of valve train components.

Intake Manifold

1

Intake Manifold Bolts (Lower)

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque from the middle outward to the ends. Use a criss-cross pattern.
2

Intake Manifold Bolts (Upper)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly to maintain proper sealing.
3

Throttle Body Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Proper torque is essential for proper throttle operation and sealing.

Exhaust Manifold

1

Exhaust Manifold Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Torque from the center outward in a progressive fashion.
2

Exhaust Manifold-to-Downpipe Flange Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure a proper and leak free connection.

Engine Internals

1

Connecting Rod Bolts

3/8-24
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 50°
Important Notes
Use a calibrated torque wrench. Ensure proper connecting rod cap orientation. Replace these bolts after loosening.
2

Main Bearing Cap Bolts

M10 x 1.5
Torque Specification
1. 45 ft-lbs (61 N·m) 2. 75°
Important Notes
Use a calibrated torque wrench. Ensure proper main bearing cap orientation. Replace these bolts after loosening.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Over-tightening can warp the pan or damage the seal. Torque evenly in a criss-cross pattern.

Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque evenly to maintain proper sealing and prevent leaks.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque evenly to prevent coolant leaks. Avoid over-tightening.

Front End Accessories

1

Crankshaft Pulley Bolt

M16 x 2.0
Torque Specification
1. 100 ft-lbs (135 N·m) 2. 75°
Important Notes
Use a harmonic balancer holding tool during tightening. Always replace this bolt after removal. This value is an estimate.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Torque evenly to secure the alternator properly.
3

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque evenly to secure the power steering pump properly.
4

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque evenly to ensure the compressor is securely mounted.

Other Critical Fasteners

1

Flexplate to Torque Converter Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Torque evenly to ensure proper power transfer. Proper bolt engagement is critical.
2

Starter Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Torque evenly to secure the starter motor properly.

3.8l Supercharged Engine

Torque specifications for 3.8L-SUPERCHARGED Engine

Cylinder Head

1

Cylinder Head Bolts (Long)

M11 x 1.5
Torque Specification
1. 70 ft-lbs (95 N·m) 2. 90°
Important Notes
Use a proper torque sequence. Angular torque is essential for correct clamping force.
2

Cylinder Head Bolts (Short)

M11 x 1.5
Torque Specification
1. 60 ft-lbs (81 N·m) 2. 80°
Important Notes
Use a proper torque sequence. Angular torque is essential for correct clamping force.

Intake Manifold

1

Lower Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a criss-cross sequence to ensure even sealing.
2

Upper Intake Manifold Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Use a criss-cross sequence to ensure even sealing.

Exhaust Manifold

1

Exhaust Manifold Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Tighten in a sequence from the center outwards to prevent warping.
2

Exhaust Manifold-to-Y-Pipe Flange Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Tighten evenly to ensure a leak-free seal.

Supercharger

1

Supercharger Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a criss-cross tightening sequence to avoid distortion.
2

Supercharger Snout Bolts

M6 x 1.0
Torque Specification
8.83 ft-lbs (12 N·m)
Important Notes
Tighten bolts evenly to avoid leaks. Convert 106 in-lbs to ft-lbs (106 / 12 = ~8.83 ft-lbs).
3

Supercharger Tensioner Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly, making sure that the tensioner bracket is aligned correctly.
4

Supercharger Outlet Coupler Bolts

M6 x 1.0
Torque Specification
7.42 ft-lbs (10 N·m)
Important Notes
Tighten evenly to ensure a proper seal. Convert 89 in-lbs to ft-lbs (89/12 = ~7.42 ft-lbs).

Throttle Body

1

Throttle Body Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly to avoid air leaks.

Crankshaft Bottom End

1

Crankshaft Main Bearing Cap Bolts (Inner)

M10 x 1.5
Torque Specification
1. 15 ft-lbs (20 N·m) 2. 85°
Important Notes
Use a proper torque sequence. Angle torque is essential for correct clamping force.
2

Crankshaft Main Bearing Cap Bolts (Outer)

M10 x 1.5
Torque Specification
1. 50 ft-lbs (68 N·m) 2. 50°
Important Notes
Use a proper torque sequence. Angle torque is essential for correct clamping force.
3

Connecting Rod Cap Bolts

M9 x 1.25
Torque Specification
1. 28 ft-lbs (38 N·m) 2. 50°
Important Notes
Use a proper torque sequence. Angle torque is essential for correct clamping force.
4

Harmonic Balancer Bolt

M16 x 2.0
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Use a new bolt, and apply thread locker. Be sure to secure flywheel.

Valve Covers

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
8.83 ft-lbs (12 N·m)
Important Notes
Do not over-tighten, as it can deform the valve cover. Convert 106 in-lbs to ft-lbs (106 / 12 = ~8.83 ft-lbs).

Engine Accessories

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment during installation.
2

Power Steering Pump Mounting Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar applications.
3

A/C Compressor Mounting Bolts

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

4t65 Transmission

Torque specifications for 4t65 Transmission

Engine Mounting

1

Transmission Case to Engine Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Critical for maintaining alignment. Typical size for engine to transmission mounting.

Transmission Case

1

Transmission Case Bolts (Housing)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Even torque is essential for proper sealing and preventing leaks.
2

Side Cover Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Low torque is required to avoid damage to the case and ensure a proper seal.

Valve Body

1

Valve Body Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Proper torque is crucial for valve body operation and prevents leaks.

Transmission Pan

1

Pan Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Even tightening is important to prevent leaks. Use a new pan gasket for proper sealing.

Torque Converter

1

Torque Converter to Flexplate Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque is critical to avoid vibration and damage to the transmission input shaft. Use thread locker.

Transmission Mount

1

Transmission Mount Bolts (to Transmission)

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper transmission support. Use thread locker.
2

Transmission Mount Bolts (to Frame)

M14 x 2.0
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Estimated value. Secures the mount to the vehicle frame. Use thread locker.

Internal Components

1

Internal Transmission Filter Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Low torque is essential to prevent damage to the filter housing.
2

Pressure Switch Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Proper torque to prevent leaks and sensor damage.

External Controls

1

Shift Control Lever Arm Bolt

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque is essential for accurate shifting.
2

Speed Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Essential to ensure proper sensor readings and prevent damage.

Cooler Lines

1

Transmission Cooler Line Fittings (Steel)

N/A
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque prevents leaks and damage to the transmission case. Typically these are a standard AN fitting.
2

Transmission Cooler Line Fittings (Aluminum)

N/A
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Aluminum fittings are very susceptible to damage. Use care not to overtighten these fittings. Estimated value. Typically these are a standard AN fitting.

Body

Torque specifications for Body

Door System

1

Door Hinge Bolts (Body Side)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the door hinges to the A-pillar/body. Correct torque ensures proper door alignment and operation. Estimated value.
2

Door Hinge Bolts (Door Side)

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the door hinges to the door panel. Correct torque is vital for alignment and smooth operation. Estimated value.
3

Door Latch Striker Plate Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures the striker plate to the B-pillar. Proper torque ensures secure door closure. Estimated value.

Hood System

1

Hood Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures hood hinges to the firewall/body. Ensures proper hood alignment and stability. Estimated value.
2

Hood Hinge Bolts (Hood Side)

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Connects the hood to the hinges. Proper torque prevents hood misalignment. Estimated value.
3

Hood Latch Bolt

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the hood latch mechanism to the radiator support. Ensures reliable latch operation. Estimated value.

Exterior Panels

1

Fender Bolts (Inner/Outer)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the fenders to the vehicle body. Prevents vibration and misalignment. Estimated value.
2

Bumper Cover Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Attaches the bumper cover to the vehicle. Estimated value. Many are self-tapping screws which should only be hand-tightened.
3

Headlight Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Holds the headlight assembly in place. Prevents shaking and maintains alignment. Estimated value.
4

Taillight Mounting Screws

Self-tapping screw
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Holds the taillight assembly in place. Typically self-tapping screws. Torque is an estimate - avoid over-tightening.
5

Grille Mounting Bolts/Screws

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the grille to the vehicle's front end. May also use self-tapping screws. Estimated value.
6

Rear Spoiler/Wing Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Attaches the spoiler to the trunk lid. Many are self-tapping screws into plastic. Estimated value.

Interior Components

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
SAFETY-CRITICAL. Secures seats to the floor pan. Crucial for passenger safety. Estimated value.
2

Seatbelt Anchor Bolts

M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
SAFETY-CRITICAL. Secures seatbelts to the vehicle's body. Vital for passenger safety. Estimated value.
3

Dashboard Support Brackets

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the dashboard to the chassis. Prevents rattling. Estimated value.
4

Interior Trim Panel Screws

Self-tapping screw
Torque Specification
2 ft-lbs (3 N·m)
Important Notes
Low torque is required to prevent damage. Hand tighten to a snug fit. Estimated value.

Brakes

Torque specifications for Brakes

Front Calipers

1

Caliper Mounting Bolts (to Steering Knuckle)

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten bolts in a cross pattern to ensure even pressure. Always replace if removed.
2

Caliper Guide Pins (Slider Bolts)

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure guide pins are properly lubricated with brake-specific grease. Do not overtighten.
3

Brake Hose Banjo Bolt (to Caliper)

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Always use new crush washers. Proper torque is critical to prevent leaks.

Front Rotors

1

Rotor Retaining Screws (to Hub)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
These screws are primarily for assembly purposes and are not critical for braking. Estimated Value.

Front Sensors

1

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten this bolt as it can damage the sensor. Estimated Value.

Front Hoses

1

Brake Hose Bracket Bolt (to Strut)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the bracket is correctly positioned before tightening the bolt. Estimated Value.

Rear Calipers

1

Caliper Mounting Bolts (to Knuckle/Bracket)

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Tighten bolts in a cross pattern. Always replace if removed.
2

Caliper Guide Pins (Slider Bolts)

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure guide pins are properly lubricated. Do not overtighten.
3

Brake Hose Banjo Bolt (to Caliper)

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Always use new crush washers. Proper torque is critical to prevent leaks.

Rear Rotors

1

Rotor Retaining Screws (to Hub)

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
These screws are primarily for assembly purposes. Estimated value.

Rear Sensors

1

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten this bolt as it can damage the sensor. Estimated Value.

Rear Hoses

1

Brake Hose Bracket Bolt (to Trailing Arm/Chassis)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the bracket is correctly positioned before tightening the bolt. Estimated Value.

Master Cylinder

1

Master Cylinder Mounting Nuts (to Booster)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten nuts in a cross pattern to ensure even pressure. Estimated Value.
2

Brake Booster Mounting Nuts (to Firewall)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten nuts in a cross pattern. Estimated Value.

Proportioning Valve

1

Proportioning Valve Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated Value.

Brake Lines

1

Brake Line Fitting (to Caliper, Master Cylinder, etc.)

3/8-24 (flare fitting)
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Use a flare nut wrench. DO NOT OVERTORQUE. If leaking, use new fittings. Estimated Value.

Bleeder Screws

1

Bleeder Screw

M7 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
DO NOT OVERTIGHTEN. Estimated Value.

Drivetrain

Torque specifications for Drivetrain

Engine Transaxle Interface

1

Engine to Transaxle Mounting Bolts (M10)

M10 x 1.5
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Secures the engine to the transaxle. Estimated value based on similar GM 3800 V6 applications.
2

Engine to Transaxle Mounting Bolts (M12)

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Secures the engine to the transaxle. Estimated value based on similar GM 3800 V6 applications.
3

Transmission Bell Housing Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the transmission bellhousing to the engine. Estimated value based on industry standards for M8 case bolts.

Transaxle Components

1

Transmission Pan Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Secures the transmission pan to the transmission case. Estimated based on industry standard for M6 pan bolts. Tighten in a criss-cross pattern.
2

Transmission Filter Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the transmission filter to the valve body. Estimated value based on industry standard for M6 filter bolts. Do not overtighten.
3

Valve Body Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the valve body to the transmission case. Based on similar GM 4T65E applications.
4

Side Cover Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the side cover onto the transaxle case. Estimated value based on industry standard for M8 case bolts.
5

Torque Converter Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Fastens the torque converter to the flexplate. Estimated value based on similar GM 3800 V6 applications.
6

Transmission Mount Bolts

M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Secure the transmission mount to the frame/chassis and transmission. Estimated value based on industry standards for M12 chassis bolts.

Driveshaft Axle Components

1

Axle Nut (Front)

32mm/34mm (check specific application)
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
Secures the axle to the wheel hub. Estimated range, check specific application. MUST be torqued to spec and often requires a new nut.
2

Inner CV Joint Bolts to Transmission Flange

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the inner CV joint to the transmission. Estimated value based on similar GM FWD applications. Tighten in a criss-cross pattern.
3

Outer CV Joint Bolts to Hub

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Secures the outer CV joint to the wheel hub. Estimated based on industry standard for M8 CV bolts. Tighten in a criss-cross pattern.

Differential Components

1

Differential Cover Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the differential cover. Based on industry standard for differential cover bolts. Tighten in a criss-cross pattern.

Flexplate Flywheel

1

Flexplate to Crankshaft Bolts

M10 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Connects the flexplate to the engine crankshaft. Estimated value based on general applications. Often torqued in a sequence, check the manual for specific procedures.

Other Drivetrain Components

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secure starter motor to the transaxle/engine block. Estimated value based on industry standards for M10 starter bolts.

Electrical

Torque specifications for Electrical

Battery System

1

Battery Terminal Clamp Bolts

M6
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensures a secure, low-resistance connection. Prevents arcing and overheating. Standard M6 fastener.
2

Starter Motor Mounting Bolts (Engine Block Side)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures starter motor to engine block. Critical for proper gear engagement and starting. Use a torque wrench for correct tightening.
3

Starter Motor Solenoid Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures solenoid to starter. Ensures proper starter activation. Use a torque wrench.

Charging System

1

Alternator Mounting Bolts (Engine Block or Bracket)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures alternator to engine or bracket. Ensures proper belt tension and alignment. Critical for proper charging. Use a torque wrench for proper tightening.
2

Alternator Rear Bracket Mounting Bolt(s)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Supports and stabilizes the alternator. Often uses smaller fasteners. Value estimated based on bolt size.

Grounding System

1

Ground Strap/Cable Attachment Bolts (Engine Block, Body)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensures proper electrical grounding to complete the circuit and prevent voltage drop. Critical for proper electrical operation. Standard M8 fastener.

Lighting System

1

Headlight Assembly Mounting Bolts

M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures headlight assembly to the body. Value estimated based on application and bolt size. Do not over-tighten when fastening to plastic.
2

Tail Light Assembly Mounting Bolts

M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures tail light assembly to the body. Value estimated based on application and bolt size. Do not over-tighten when fastening to plastic.

Control Modules

1

ECM (Engine Control Module) Mounting Bolts

M6
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Securely mounts the ECM to the chassis. Prevents vibration and ensures proper electrical connections. Use a torque wrench.
2

BCM (Body Control Module) Mounting Bolts

M6
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Securely mounts the BCM to the chassis. Prevents vibration and ensures proper electrical connections. Use a torque wrench.

Power Distribution

1

Fuse Box/Relay Center Mounting Bolts

M6
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Securely mounts fuse box. Value estimated based on application. Do not over-tighten when fastening to plastic.
2

Power Distribution Block Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensures solid electrical connections. Proper torque prevents vibrations and electrical issues. Use a torque wrench.

Instrument Panel

1

Instrument Panel Grounding Bolts

M6
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensures good ground for the instrument panel and the gauges. Standard M6 size fastener. Use a torque wrench for proper tightening.
2

Interior Electrical Component Fasteners (Switches, Modules, etc.)

M5
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Secures interior components. Value estimated based on light torque needs for plastic or thin metal panels. Be careful not to over-tighten.

Ignition System

1

Ignition Coil Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Secures coil(s) to the engine. Ensures reliable spark. Use a torque wrench.

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensor

1

Oxygen Sensor to Exhaust Pipe/Manifold

M18 x 1.5
Torque Specification
32.5 ft-lbs (44 N·m)
Important Notes
Estimated value based on industry standards for threaded oxygen sensors. Ensure threads are clean and lightly oiled prior to installation.

Mass Airflow Sensor

1

MAF Sensor to Air Intake Housing

M5 x 0.8
Torque Specification
8.5 ft-lbs (11.5 N·m)
Important Notes
Estimated value based on typical MAF sensor mounting. Avoid over-tightening due to the plastic housing.

Manifold Absolute Pressure Sensor

1

MAP Sensor to Intake Manifold/Plenum

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical MAP sensor mounting. Use caution to avoid over-tightening on plastic components.

Egr System

1

EGR Valve to Intake Manifold/EGR Tube (Small Bolts)

M6 x 1.0
Torque Specification
17.5 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar applications. Ensure bolts are properly threaded before tightening. Tighten in a crisscross pattern.
2

EGR Valve to Intake Manifold/EGR Tube (Large Bolts)

M8 x 1.25
Torque Specification
27.5 ft-lbs (37 N·m)
Important Notes
Estimated value based on similar applications. Ensure bolts are properly threaded before tightening. Tighten in a crisscross pattern.
3

EGR Tube to Exhaust Manifold

M8 x 1.25
Torque Specification
21.5 ft-lbs (29 N·m)
Important Notes
Estimated value based on similar applications. Ensure all bolts are properly threaded and seated. Tighten in a crisscross pattern.

Evaporative Emission System

1

EVAP Canister Vent Valve Bracket to Body

M6 x 1.0
Torque Specification
8.5 ft-lbs (11.5 N·m)
Important Notes
Estimated value based on similar body bracket applications. Do not over-tighten.
2

Purge Solenoid Valve to Intake Manifold or Bracket

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on typical purge solenoid mounting. Avoid over-tightening on plastic or delicate mounting points.

Fuel System

1

Fuel Tank Pressure Sensor to Fuel Pump Module

M4 x 0.7
Torque Specification
4 ft-lbs (5.5 N·m)
Important Notes
Estimated value based on similar applications and plastic fuel system components. Use extreme caution to avoid over-tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts/Studs

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar GM 3.8L V6 engines. Always double-check specific repair manual. May vary based on manifold material (cast iron vs. aluminum).
2

Exhaust Manifold to Exhaust Pipe Flange Bolts/Studs

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar applications. Bolt sizes and lengths may vary between models and years. Always double-check specific repair manual.

Exhaust Pipes

1

Exhaust Pipe to Catalytic Converter Flange Bolts/Studs

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar applications. Some bolts may be smaller, use 18 ft-lbs (25 N·m) for M8 bolts. Verify bolt size.
2

Catalytic Converter to Intermediate Pipe Flange Bolts/Studs

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar applications. Always double-check specific repair manual.
3

Intermediate Pipe to Muffler Inlet Flange Bolts/Studs

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar applications. Always double-check specific repair manual.

Muffler And Supports

1

Muffler Hanger Bolts

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on common sizes for exhaust hangers. Over-tightening can damage the rubber hangers.
2

Exhaust Pipe Support Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar bracket mount bolts. Over-tightening may bend or crack brackets.

Sensors And Clamps

1

Oxygen Sensor (O2 Sensor)

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure proper seating and use of a crush washer. Over-tightening can damage the sensor.
2

Band Clamp Bolts

M8 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on typical band clamps. Actual torque depends on clamp diameter and material. Always follow specific clamp directions. Tighten to around 35 ft-lbs then additional turns.

Fuel

Torque specifications for Fuel

Fuel Pump Module

1

Fuel Pump Module Retaining Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Secures the fuel pump module to the top of the fuel tank. Under-torque can cause leaks and over-torque can damage the tank or the module.
2

Fuel Level Sending Unit Retaining Screws/Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Secures the sending unit within or to the module; avoids damage to the delicate unit. Estimated value.

Fuel Tank

1

Fuel Tank Straps

M12 x 1.75
Torque Specification
30 ft-lbs (40.7 N·m)
Important Notes
Secures the fuel tank to the vehicle chassis. Adequate torque prevents the tank from shifting or dropping. Apply threadlocker if specified in service manual.
2

Fuel Tank Shield/Skid Plate Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Secures the protective shield or skid plate to the vehicle body or frame. Proper torque ensures the shield does its job without bending. Estimated value.

Fuel Lines Rail

1

Fuel Line Connections (Threaded Fittings)

Varies, typically M12 x 1.5 or M14 x 1.5
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
These are often specialty fittings and require the correct torque and wrench type. Over-tightening can damage fittings and under-tightening can cause leaks. This is a generalized torque spec, use care when tightening. Estimated Value.
2

Fuel Rail Mounting Bolts/Studs

M6 x 1.0
Torque Specification
18 ft-lbs (24.4 N·m)
Important Notes
Secure the fuel rail to the intake manifold. Important for maintaining proper fuel injector positioning and preventing leaks. Estimated value.
3

Fuel Pressure Regulator Mounting Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (10.8 N·m)
Important Notes
Secures the regulator; prevents vacuum and fuel leaks. Estimated value.
4

Fuel Filter Mounting Bracket Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20.3 N·m)
Important Notes
Securely mounts the fuel filter to the chassis. Prevents the filter from moving or being damaged. Estimated value.
5

Fuel Filter Inlet/Outlet Connection (Threaded Fittings)

Varies, typically M12 x 1.5 or M14 x 1.5
Torque Specification
16.5 ft-lbs (22.4 N·m)
Important Notes
These ensure a leak-free connection to and from the fuel filter. Over-tightening can damage threads, under-tightening can cause leaks. Specific torque may depend on fitting type. This is a generalized torque spec, use care when tightening. Estimated Value.

Fuel Injectors

1

Fuel Injector Hold-Down Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8.1 N·m)
Important Notes
If there are retaining bolts, these secure the injectors to the fuel rail or intake manifold. Ensures correct sealing and positioning. Estimated value.
2

Fuel Injector Electrical Connector Screw

M3 x 0.5
Torque Specification
2.5 ft-lbs (3.4 N·m)
Important Notes
Secures the electrical connector, but not usually load-bearing. Estimated value.

Evaporative Emission System

1

EVAP Canister Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Secures the EVAP canister to the chassis. Prevents rattling or damage. Estimated Value.
2

EVAP Line Quick Connects

N/A
Torque Specification
N/A
Important Notes
Not torqueable, but must be fully engaged to prevent leaks and evaporative emissions.

Hvac

Torque specifications for Hvac

Compressor Subsystem

1

Compressor Mounting Bolts (Engine Block)

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on industry standard and similar GM applications. Proper torque is critical to prevent vibration, noise, and potential compressor damage. Over-torquing can distort the compressor housing.
2

Compressor Bracket Mounting Bolts (to Engine)

M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on common GM bracket applications. This higher torque ensures the bracket is firmly attached to the engine. The bracket experiences higher stress due to the compressor weight and driving forces.
3

Compressor Clutch Connector Bolt/Nut

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on industry standard for small fasteners. Proper torque is essential to prevent a loose connection and intermittent engagement and potential damage to the connector itself.

Condenser Subsystem

1

Condenser Mounting Bolts (to Radiator Support)

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on industry standard and similar GM applications. Proper torque prevents vibration and movement. Over-torquing can damage the fragile condenser fins or mounting brackets.

Receiver Drier Subsystem

1

Receiver Drier Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standard. This component is subject to vibration. Proper torque is essential to ensure no leaks from the hose connections due to excessive movement.

Evaporator Subsystem

1

Evaporator Core Mounting Bolts (Inside HVAC Box)

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value based on industry standard for small fasteners and HVAC component mounting. These bolts are often securing plastic to plastic or plastic to metal, and care must be taken not to over-torque and damage plastic parts.
2

Expansion Valve Mounting Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standard for HVAC component connection. Correct torque ensures a leak-free seal.

Hvac Housing Subsystem

1

HVAC Housing Mounting Bolts

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on industry standard and similar GM applications. These secure the entire HVAC box to the firewall or mounting structure. Proper torque ensures correct sealing against the firewall and prevents air leaks.
2

Blower Motor Mounting Screws

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on industry standard. These secure the blower motor to the HVAC housing. Over-torquing can crack the plastic housing or strip the threads. These are typically M5 or M6 screws into plastic.

Ac Line Subsystem

1

A/C Line Fittings (Service Ports)

SAE Standard Fitting
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Estimated torque value. These are very low torque fittings. Over-torquing can crush the o-rings or damage the fittings. Typically, tightening with hand pressure followed by a very slight additional turn with a wrench is sufficient.
2

Pressure Sensor/Switch on A/C Lines

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on industry standard for sensor connections. Correct torque ensures a leak-free seal.

Heater Core Subsystem

1

Heater Core Pipe Mounting Clamps/Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on industry standard and similar GM applications. Correct torque is essential to avoid leaks.

Suspension

Torque specifications for Suspension

Front Suspension

1

Front Strut Upper Mounting Nuts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the strut assembly to the vehicle body. Ensure proper alignment before tightening.
2

Front Strut Lower Mounting Bolts (to steering knuckle)

M14 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Critical for securing the strut to the steering knuckle. Use new bolts if possible.
3

Sway Bar End Link Nuts (to Strut)

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Connects the sway bar to the strut. Ensure end links are properly seated.
4

Sway Bar Bracket Bolts (to frame/subframe)

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the sway bar to the vehicle frame or subframe. Tighten evenly.
5

Outer Tie Rod End Nut

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Attaches the tie rod end to the steering knuckle. Ensure proper alignment.
6

Lower Control Arm Front Bolt (to subframe)

M14 x 2.0
Torque Specification
1. 85 ft-lbs (115 N·m) 2. 60°
Important Notes
Secures the front of the control arm to the subframe. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
7

Lower Control Arm Rear Bolt (to subframe)

M14 x 2.0
Torque Specification
1. 85 ft-lbs (115 N·m) 2. 60°
Important Notes
Secures the rear of the control arm to the subframe. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
8

Ball Joint Nut (to steering knuckle)

M12 x 1.75
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Attaches the ball joint to the steering knuckle. Ensure proper seating.

Rear Suspension

1

Rear Strut Upper Mounting Nuts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Attaches the top of the rear strut to the body. Ensure correct orientation.
2

Rear Strut Lower Mounting Bolt (to knuckle/trailing arm)

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Secures the strut to the knuckle or trailing arm. Use new bolts if possible.
3

Rear Trailing Arm Bolts (Front and Rear, Frame)

M14 x 2.0
Torque Specification
1. 85 ft-lbs (115 N·m) 2. 90°
Important Notes
Secures the trailing arm to the chassis. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
4

Rear Trailing Arm to Knuckle Bolt

M12 x 1.75
Torque Specification
1. 70 ft-lbs (95 N·m) 2. 90°
Important Notes
Secures the trailing arm to the knuckle. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
5

Rear Upper Control Arm Bolts (Frame Side)

M14 x 2.0
Torque Specification
1. 85 ft-lbs (115 N·m) 2. 90°
Important Notes
Secures the control arm to the frame. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
6

Rear Upper Control Arm Bolts (Knuckle Side)

M12 x 1.75
Torque Specification
1. 70 ft-lbs (95 N·m) 2. 90°
Important Notes
Secures the control arm to the knuckle. Torque to yield bolt, replace after removal. Estimated bolt size/pitch.
7

Rear Sway Bar End Link Nuts

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Connects the rear sway bar to the suspension. Ensure end links are seated.
8

Rear Sway Bar Bracket Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the rear sway bar to the vehicle's frame/subframe. Tighten evenly.

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 are the torque specifications for the cylinder head bolts on a 1997-2004 Buick Regal?

Cylinder head bolts must be torqued to 115 ft-lbs (155Nm) in three stages. First stage: 65 ft-lbs (88Nm), Second stage: 90 ft-lbs (122Nm), Third stage: 115 ft-lbs (155Nm)

Q2

What IS the recommended torque for the lug nuts on a Buick Regal?

Lug nuts should be torqued to 100 ft-lbs (136 Nm).

Q3

What torque wrench should I use for my Buick Regal?

We recommend using a torque wrench with a range that covers the torque specifications for your Regal. This typically falls within the range of 20-150 ft-lbs (27-203 Nm).

Q4

Can I use a regular wrench to tighten bolts on my Regal?

No, it's not recommended to use a regular wrench to tighten bolts on your Regal. A torque wrench IS designed to apply a precise amount of torque, which IS essential for proper tightening of critical components.

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

1/4-Inch Drive Digital Torque Wrench 2-200 in-lb

Use this tool to tighten bolts with specified torque values in inch-pounds (in-lb). This compact wrench IS ideal for working in confined spaces and offers precise torque control.

  • Measures torque from 2 to 200 in-lb (0.23 to 22.6 Nm)
  • Digital display provides accurate readings
  • Audible and visual alerts indicate when the desired torque IS reached
  • Compact size and ergonomic design for easy handling
Learn more

1/2-Inch Drive Click-Type Torque Wrench 25-250 ft-lb

This heavy-duty torque wrench IS commonly used for lug nuts and other high-torque applications. It features a click mechanism that signals when the desired torque IS reached, providing audible and tactile feedback.

  • Measures torque from 25 to 250 ft-lb (34 to 339 Nm)
  • Click-type mechanism provides a clear indication of when the desired torque IS reached
  • Durable construction for demanding use
  • Easy-to-read scale with both ft-lb and Nm markings
Learn more
Service Procedures

Engine Component Torque Specifications

This section details the torque specifications for various engine components, including cylinder head bolts, intake and exhaust manifold bolts, and more.

  • Locate the specific component you need to tighten.
  • Refer to the corresponding torque value in the table provided.
  • Use the appropriate torque wrench to tighten the bolt or nut to the specified torque.
View full procedure

Suspension and Steering Component Torque Specifications

This section covers the torque specifications for suspension and steering components, such as control arm bolts, ball joints, and tie rod ends.

  • Identify the suspension or steering component that requires tightening.
  • Find the torque value in the provided table.
  • Use the correct torque wrench to tighten the component to the specified torque.
View full procedure

Brake Component Torque Specifications

This section provides the torque specifications for brake components, including brake calipers, rotors, and wheel lug nuts.

  • Determine the brake component that needs to be tightened.
  • Refer to the table for the corresponding torque value.
  • Use the appropriate torque wrench to tighten the component to the specified torque.
View full procedure
Technical Service Bulletins

Technical Service Bulletin: Revised Torque Specifications for Crankshaft Pulley Bolt

2002-05-15

This TSB provides updated torque specifications for the crankshaft pulley bolt on certain model year regal vehicles. The revised torque values aim to address potential issues with pulley loosening.

1999-2004 regal

Resolution: The bulletin includes specific instructions and torque values for properly tightening the crankshaft pulley bolt.

Technical Service Bulletin: Suspension Component Torque Specifications Correction

2003-07-10

This TSB corrects previously published torque specifications for certain suspension components. It provides updated torque values to ensure proper suspension assembly and performance.

1997-2004 regal

Resolution: The bulletin contains revised torque specifications for various suspension components, including control arms, ball joints, and sway bar links.

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General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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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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15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

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