Buick Vehicle Models Encore 2013-2019 Torque Specifications
Buick Vehicle Models Encore 2013-2019

Buick Vehicle Models Encore 2013-2019 Torque Specifications

Complete Buick Vehicle Models Encore 2013-2019 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

1.4l Engine

Torque specifications for 1.4L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (25 N·m)
Important Notes
Torque in a specified sequence, typically starting from the center and working outwards in a spiral pattern. Refer to the service manual for specific sequence.

Crankshaft

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
1. 37 ft-lbs (50 N·m)
Important Notes
Torque in a specified sequence to ensure even clamping. Refer to the manual for the specific sequence.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
1. 23 ft-lbs (31 N·m)
Important Notes
Ensure proper orientation of the connecting rod caps. Torque value is critical for bearing clearance.
3

Flywheel Bolts

M10 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Apply threadlocker to bolt threads. Ensure correct flywheel orientation.
4

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Apply threadlocker to bolt threads. Use a tool to hold the crankshaft stationary while tightening.

Lubrication

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque in a cross pattern to ensure even pressure on the gasket.
2

Oil Filter Housing Bolt

M20 x 1.5 (Estimated)
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Hand tighten only, do not over-tighten to avoid cracking housing or stripping threads.
3

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a new crush washer or O-ring with every oil change.
4

Oil Pressure Sensor

M10 x 1.0 (Estimated)
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value. Do not over tighten or damage the sensor.

Valvetrain

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque in a cross pattern to evenly compress the gasket.
2

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure correct tensioner operation before tightening. Refer to service manual for procedure.
3

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Use a tool to hold the camshaft stationary while tightening.
4

Rocker Arms/Shafts Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque evenly to prevent binding or damage. Ensure correct rocker arm alignment.

Intake And Exhaust

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Torque evenly to avoid warping the throttle body.
2

Intake Manifold Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque in a specified sequence to evenly compress the gasket and prevent vacuum leaks.
3

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Torque in a specified sequence to prevent leaks. Use new exhaust manifold gaskets.
4

EGR Valve Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment and use a new gasket if needed.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque evenly to ensure proper sealing of fuel rail.
2

Fuel Injector Bolts

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

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Torque in a cross pattern to evenly compress the gasket.
2

Water Pump Pulley Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten evenly to prevent vibration or damage.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Torque evenly to ensure a good seal and prevent coolant leaks.
4

Coolant Temperature Sensor

M10 x 1.0 (Estimated)
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value. Do not over tighten.

Sensors

1

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque to specified value to ensure proper sensor operation. Do not over-tighten.
2

Camshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper sensor seating and alignment.
3

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper sensor seating and alignment.
4

Intake Air Temperature Sensor

Plastic threads, hand tight (Estimated)
Torque Specification
2 ft-lbs (3 N·m)
Important Notes
Hand tighten only. Do not over tighten.

Turbocharger

1

Turbocharger to Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Torque in a specified sequence. Use new gaskets to ensure proper sealing.
2

Turbocharger Oil Feed/Return Line Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Use new sealing washers. Do not over-tighten.

6t40 Transmission

Torque specifications for 6t40 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment before tightening. These bolts are critical for structural integrity.

Transmission Case

1

Transmission Case Bolts (General)

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
This is a general specification; individual bolt torques may vary. Ensure case halves are properly aligned.

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Proper torque is critical to achieving a leak-free seal. Do not over-tighten.

Transmission Drain Fill Plugs

1

Transmission Drain/Fill Plugs

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a new seal or gasket for the plugs to prevent leaks.

Drive Axle Components

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure proper seating of the axle to the transmission output flange before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
This nut is located at the wheel hub. Proper torque is crucial for the entire drive shaft system.

Transmission Internal Components

1

Valve Body Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Over-tightening could damage the valve body or cause internal leaks.
2

Pressure Sensor Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Proper torque ensures accurate sensor readings. Do not over-tighten.

Transmission Control Module

1

Transmission Control Module (TCM) Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper seating of the module to the transmission case. Do not over-tighten.

Transmission Range Sensor

1

Transmission Range Sensor (TRS) / Manual Shaft Lever Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure smooth lever operation after installation. Do not over-tighten.

Torque Converter

1

Torque Converter Bolts (To Flexplate)

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Use the correct torque pattern as specified by the manufacturer. These bolts may be torque to yield and require replacement after removal.

Body

Torque specifications for Body

Wheels And Tires

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Tighten lug nuts in a star pattern. Ensure wheel is flush against hub before torquing.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure fuel tank straps are properly aligned before tightening. Do not overtighten.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Inspect the filler neck seal for damage before installation.

Seats And Interior

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure all seat bolts are tightened to the correct specification. Some vehicles may use Torque-To-Yield (TTY) bolts that must be replaced.
2

Interior Trim Panel Screws/Bolts

M5 x 0.8
Torque Specification
5.8 ft-lbs (8 N·m)
Important Notes
Values are estimated. Do not over tighten small plastic fasteners. Tighten until snug.

Bumpers And Exterior

1

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque values vary by location. Ensure proper alignment before tightening. Estimated value.
2

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper hood alignment before tightening. Estimated Value.
3

Fender Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Use care not to strip fasteners in sheet metal. Estimated value
4

Door Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper door alignment before tightening.
5

Door Latch/Striker Bolts

M8 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure proper door alignment and latch engagement before tightening.
6

Tailgate/Liftgate Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper gate/liftgate alignment before tightening. Estimated value.

Electrical And Lighting

1

Body Control Module (BCM) Mounting Bolts

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Do not overtighten, mounting screws usually engage with plastic housings. Estimated value.
2

Headlight/Taillight Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, housings can be fragile. Estimated value.

Brakes

Torque specifications for Brakes

Caliper Assembly

1

Brake Caliper Mounting Bolts

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the caliper to the mounting bracket. Ensure proper alignment before tightening.
2

Brake Caliper Bleeder Screw

M10 x 1.0
Torque Specification
9 in-lbs (12 N·m)
Important Notes
Estimated torque. Do not overtighten to avoid damage. Typically a hand-tight procedure, use 12 N·m if a specific value is required.
3

Brake Line Fitting to Caliper

M10 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Estimated torque. Ensure proper seating of the fitting to avoid leaks.

Caliper Bracket

1

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Critical for securing the entire caliper assembly to the vehicle. Always use new bolts.

Rotor

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
89 ft-lbs (120 N·m)
Important Notes
Secures rotor to the wheel hub. Ensure the rotor is properly seated before tightening.

Wheel

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Torque in a star pattern to ensure even wheel seating. Crucial for both wheel and braking system safety.

Master Cylinder

1

Master Cylinder Mounting Bolts to Booster

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated torque. Tighten in a crisscross pattern to ensure even pressure.
2

Brake Line Fitting to Master Cylinder

M10 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Estimated torque. Ensure proper seating of the fitting to avoid leaks.

Brake Booster

1

Brake Booster Mounting Bolts to Firewall

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated torque. Tighten in a star pattern.

Abs Module

1

ABS Module Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated torque. Do not overtighten to avoid damage to the module.

Drivetrain

Torque specifications for Drivetrain

Engine External

1

Flywheel Bolts

M10 x 1.25
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Apply thread locker. Tighten in a star pattern in multiple passes. If using new bolts, this should be torqued to 40 ft-lbs (54 N·m) first, then 74 ft-lbs (100 Nm).
2

Camshaft Sprocket Bolt

M12 x 1.25
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Ensure camshaft is properly aligned before tightening. Apply thread locker.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
1. 37 ft-lbs (50 N·m) 2. 60°
Important Notes
Use a new bolt each time. Final tightening is torque-to-angle.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Tighten evenly to avoid misalignment.
2

Transmission to Engine Bolts

M10 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Tighten evenly to avoid misalignment. Estimated value.
3

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a criss-cross pattern. Be very careful not to over tighten. Inch-lbs to Ft-lbs conversion is rounded.
4

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a new crush washer or sealing washer. Do not overtighten.

Driveline

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure proper alignment before tightening. Apply thread locker.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
Use a new nut each time. Ensure the joint is properly seated.
3

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure proper alignment before tightening. Use thread locker.
4

Driveshaft Center Support Bearing Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Ensure the bearing is properly aligned.

Differential

1

Differential Housing Bolts

M12 x 1.75
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Tighten in a cross pattern. Estimated value. Follow a specific tightening pattern outlined in your service manual.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Use a new crush washer or sealing washer.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Use a new crush washer or sealing washer.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensures proper grounding and secure coil attachment. Over-tightening can damage the coil pack. Double-check torque after initial use.

Starting System

1

Starter Motor Mounting Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensures proper starter alignment and engagement with the flywheel. Also provides a vital ground path for the starter motor. Under-tightening can cause misalignment and failure. Clean mating surfaces before installation.

Charging System

1

Alternator Mounting Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Proper torque ensures secure mounting, correct drive belt tension, and good electrical ground contact. A loose alternator can fail prematurely. Clean mating surfaces before installation.

Battery System

1

Battery Terminal Nut

M8 x 1.25
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Ensures good electrical connection without damaging the battery terminals. Over-tightening can crack the terminals; under-tightening can cause poor connections.

Grounding System

1

Engine to Chassis Ground Strap Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Critical for proper electrical system operation. Insufficient torque can lead to high resistance and electrical issues such as dim headlights, erratic gauges and parasitic drain. Clean all connection points before installation. This is an estimated torque value.

Electronic Control Modules

1

Engine Control Module (ECM/PCM) Mounting Bolt

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensures good ground and prevents vibration damage. Over-tightening may damage module housing. This is an estimated torque value.
2

Body Control Module (BCM) Mounting Bolt

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensures proper ground and prevents damage to the module. Over-tightening can crack the housing. This is an estimated torque value.
3

Fuse Box/Power Distribution Box Mounting Bolt

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensures secure mounting and good ground for the fuse box. Proper torque helps prevent intermittent electrical issues. This is an estimated torque value.

Lighting System

1

Headlight/Taillight Mounting Bolt

M5 x 0.8
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
Ensures secure mounting without damaging plastic housings. Over-tightening may crack housings or cause a seal failure. Under-tightening can result in vibration and connector failure. This is an estimated torque value.

Wiring Harness Connectors

1

Wiring Harness Connector Bolt

M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
These are general estimates - Consult specific manufacturers documentation for more accurate specifications. Critical for ensuring that all pins within a connector are properly connected and that the connector remains firmly attached, especially in engine bay environments where connectors are exposed to vibrations and heat. Over-tightening can damage the connector; under-tightening can cause intermittent connections and difficult-to-diagnose issues. This is an estimated torque value.

Emissions Sensors

Torque specifications for Emissions_sensors

Egr System

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure threads are clean and in good condition. Apply even torque. Use a calibrated torque wrench

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten in a circular or alternating pattern to ensure even clamping and prevent leaks. Use a calibrated torque wrench. Ensure threads are clean.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment and gasket is in place. Use a calibrated torque wrench
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment and gasket is in place. Use a calibrated torque wrench.

Intake System

1

Manifold Absolute Pressure (MAP) Sensor Bolts

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value, use care as the sensor housing may be plastic. Do not overtighten. Use a calibrated torque wrench.
2

Mass Airflow (MAF) Sensor Bolts

M5 x 0.8
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Estimated value, use care as the sensor housing may be plastic. Do not overtighten. Use a calibrated torque wrench.

Oxygen Sensors

1

Oxygen Sensor (O2 Sensor)

M18 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Ensure threads are clean and apply anti-seize to threads before installation. Tighten sensor with a wrench. Use a calibrated torque wrench.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening. Use new gaskets and fasteners are recommended.
2

Exhaust Manifold Heat Shield Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts attach the heat shield to the manifold. Estimated value based on size and application.

Front Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Header Flange Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening. Use new gaskets. Flange bolts are typical.
2

Exhaust Pipe to Catalytic Converter Flange Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening. Use new gaskets. Flange bolts are typical.

Catalytic Converter

1

Catalytic Converter to Intermediate Pipe Flange Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening. Use new gaskets. Flange bolts are typical.

Muffler And Tailpipe

1

Muffler to Exhaust Pipe Flange Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper alignment before tightening. Use new gaskets. Flange bolts are typical.
2

Tailpipe Hanger Bracket Bolts to Chassis

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the exhaust system hanger to the chassis. Estimated value based on size and application.

Exhaust Clamps

1

Exhaust Clamp Bolt

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Torque value may vary. Use manufacturer's specification if available. Estimated value based on common clamp sizes.

Oxygen Sensors

1

Oxygen Sensor

M18 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten to ensure a leak-free seal. Overtightening can damage the sensor. Apply anti-seize to the threads.

Fuel

Torque specifications for Fuel

Fuel Rail And Injectors

1

Fuel Rail Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even pressure.
2

Fuel Injector Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure injector is seated correctly with new O-rings before tightening.
3

Fuel Pressure Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated and use new O-ring if applicable. This sensor's location may vary.

Fuel Pump And Tank

1

Fuel Pump Mounting Bolts

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

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure tank is properly supported before tightening. Use caution when tightening on straps.
3

Fuel Filler Neck Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure filler neck is seated correctly and aligned with fuel tank inlet. Do not over-tighten, check rubber hoses and clamps during reassembly.
4

Fuel Tank Pressure Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated. Use new seal or o-ring if applicable.

Fuel Lines And Filter

1

Fuel Line Fitting/Banjo Bolt (Aluminum)

Varies - M12 x 1.5 estimated
Torque Specification
17.5 ft-lbs (24 N·m)
Important Notes
Use an appropriate wrench to prevent damage. These values are an estimate based on material and common sizes.
2

Fuel Line Fitting/Banjo Bolt (Steel)

Varies - M12 x 1.5 estimated
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use an appropriate wrench to prevent damage. These values are an estimate based on material and common sizes.
3

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure filter is properly seated before tightening. The bracket mounting the fuel filter should also be torqued to this specification.

Access Panels

1

Fuel Tank Access Panel Bolts/Screws

M5 x 0.8
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Do not over-tighten, as this could damage the body panel. This value is an estimate based on common sizes.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure bolts are clean and threads are in good condition. Tighten evenly to avoid stressing the compressor housing or mounting bracket.

Ac Line Fittings

1

A/C Line Fitting Nuts/Bolts

Assorted, typically M6-M12
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Apply a small amount of refrigerant oil to o-rings before assembly. Ensure fittings are properly aligned to prevent cross-threading. Torque spec is for standard o-ring or flare type fittings; values may vary based on fitting type and size. If using a crowfoot wrench, remember to account for the wrench extension.

Ac Condenser

1

A/C Condenser Mounting Bolts/Nuts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Check for plastic mounting points. Do not over-tighten to avoid damage. This value is an estimate, verify against service manual if available.

Ac Evaporator

1

A/C Evaporator Core Mounting Screws

M5 x 0.8 self-tapping
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
These are often self-tapping screws. Do not over-tighten as this can cause cracking or stripping. This value is an estimate, verify against service manual if available.

Hvac Housing

1

HVAC Housing Mounting Screws

M5 x 0.8 self-tapping
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
These are often self-tapping screws into plastic. Do not over-tighten to avoid damage to plastic housing. This value is an estimate, verify against service manual if available.
2

Blower Motor Mounting Screws

M5 x 0.8 self-tapping
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
These are often self-tapping screws into plastic. Do not over-tighten to avoid damage to plastic housing. This value is an estimate, verify against service manual if available.

Blend Door Actuators

1

Blend Door Actuator Mounting Screws

M4 x 0.7 self-tapping
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
These are often small self-tapping screws into plastic. Do not over-tighten as this can cause cracking of the actuator and plastic housing. This value is an estimate, verify against service manual if available.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut Upper Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Torque for the bolts securing the upper strut mount to the vehicle body. These bolts are critical for proper strut function and alignment.
2

Lower Strut Mount Pinch Bolt

M14 x 1.5
Torque Specification
111 ft-lbs (150 N·m)
Important Notes
Torque for the pinch bolt securing the lower strut to the steering knuckle. This is critical for stability and proper strut performance.
3

Control Arm Mounting Bolts

M14 x 2.0
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Torque for the bolts securing the control arm to the vehicle's subframe or chassis. These bolts are crucial for maintaining suspension geometry.
4

Ball Joint Nut

M12 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Torque for the nut securing the ball joint to the steering knuckle or control arm. Proper torque ensures secure connection of the ball joint.
5

Tie Rod End Nut

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Torque for the nut securing the tie rod end to the steering knuckle. Correct torque is vital for maintaining steering alignment.
6

Sway Bar Link Nut

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Torque for the nuts securing the sway bar links to the sway bar and strut or control arm. These connections are important for sway bar effectiveness.
7

Stabilizer Bar Mounting Bracket Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Torque for the bolts securing the sway bar mounting brackets to the frame or chassis. This ensures the sway bar functions correctly.

Rear Suspension

1

Rear Shock/Strut Lower Mounting Bolt

M12 x 1.75
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Torque for the bolt connecting the lower part of the rear shock or strut to the knuckle/control arm. This is critical for rear stability.
2

Upper Control Arm Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Torque for the bolts securing the upper control arm to the frame or chassis, if applicable. Critical for vehicles using short-long arm or multilink setups.

Wheel Speed Sensor

1

Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Torque for the bolt securing the wheel speed sensor to the knuckle or hub. Critical for ABS and stability control systems. Note: Value is converted from inch-lbs to ft-lbs

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 head bolts on a 2016 Buick Encore?

Refer to the Buick Encore technical service manual for the specific torque value and tightening sequence. Generally, the torque specification IS between 80-100 ft-lbs (108-136 Nm).

Q2

Can I use a torque wrench to tighten the lug nuts on my 2018 Encore?

Yes, a torque wrench IS the recommended tool for tightening lug nuts. It ensures the proper torque IS applied, preventing under or over-tightening. The torque specification for Encore lug nuts IS typically around 100-110 ft-lbs (136-150 Nm).

Q3

What are the torque specifications for the suspension components on a 2019 Encore?

The torque values for suspension components vary depending on the specific component and its location. Refer to the service manual for precise specifications, as incorrect torque can compromise suspension performance and safety.

Q4

I'm performing brake maintenance on my 2013 Encore. What IS the torque specification for the caliper bolts?

The torque specification for caliper bolts on the 2013 Encore IS typically between 25-35 ft-lbs (34-47 Nm). Tightening beyond the specified range can damage the bolts or calipers.

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 encore.

  • 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

Engine Cylinder Head Bolt Tightening Procedure

Technical procedure for tightening cylinder head bolts to precise torque specifications, ensuring proper sealing and preventing damage.

  • Clean and inspect cylinder head and gasket surfaces.
  • Apply a thin layer of engine oil to the threads of the cylinder head bolts.
  • Install the cylinder head bolts and tighten them to 25 Nm (18.5 ft-lb) in the sequence specified in the service manual.
  • Tighten the cylinder head bolts to 50 Nm (37 ft-lb) in the same sequence.
  • Finally, tighten the cylinder head bolts to 70 Nm (52 ft-lb) plus an additional 90 degrees in the same sequence.
  • Allow the engine to cool and re-torque the cylinder head bolts to 70 Nm (52 ft-lb) plus an additional 90 degrees in the same sequence.
View full procedure

Wheel Lug Nut Tightening Procedure

Technical procedure for tightening wheel lug nuts to precise torque specifications, ensuring proper wheel mounting and preventing accidents.

  • Clean and inspect the wheel lug nuts and threads.
  • Apply a thin layer of anti-seize lubricant to the threads of the wheel lug nuts.
  • Install the wheel lug nuts and tighten them to 115 Nm (85 ft-lb) using a torque wrench.
  • Use a star pattern to tighten the wheel lug nuts evenly.
  • Double-check the tightness of the wheel lug nuts after driving for 100 miles.
View full procedure

Suspension Component Bolt Tightening Procedure

Technical procedure for tightening suspension component bolts to precise torque specifications, ensuring proper suspension alignment and handling.

  • Clean and inspect the suspension component bolts and threads.
  • Apply a thin layer of anti-seize lubricant to the threads of the suspension component bolts.
  • Install the suspension component bolts and tighten them to the torque specifications specified in the service manual.
  • Use a torque wrench to ensure proper torque application.
  • Double-check the tightness of the suspension component bolts after driving for 100 miles.
View full procedure
Technical Service Bulletins

Technical Service Bulletin: Engine Cylinder Head Bolt Torque Specification Correction

2016-05-10

This bulletin corrects the engine cylinder head bolt torque specification for 2013-2019 Buick Encore models.

2013-2019 Buick Encore

Resolution: The revised cylinder head bolt torque specification IS 70 Nm (52 ft-lb) plus an additional 90 degrees. Dealers are instructed to inspect and re-torque the cylinder head bolts on affected vehicles as per the updated procedure.

Technical Service Bulletin: Wheel Lug Nut Torque Specification Update

2017-03-15

This bulletin updates the wheel lug nut torque specification for 2013-2019 Buick Encore models.

2013-2019 Buick Encore

Resolution: The revised wheel lug nut torque specification IS 115 Nm (85 ft-lb). Dealers are instructed to inspect and re-torque the wheel lug nuts on affected vehicles as per the updated procedure.

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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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