Buick Vehicle Models Encore 2020-present Torque Specifications
Buick Vehicle Models Encore 2020-present

Buick Vehicle Models Encore 2020-present Torque Specifications

Complete Buick Vehicle Models Encore 2020-present 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

1.3l Engine

Torque specifications for 1.3L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
Important Notes
Tighten bolts in a specific sequence. Refer to the service manual for the correct tightening sequence. Angle tightening is typically required after the initial torque but is not included here.

Crankshaft And Rotating Assembly

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
61 ft-lbs (83 N·m)
Important Notes
Tighten main bearing bolts in a specific sequence. Refer to the service manual for the correct tightening sequence.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten connecting rod nuts evenly. Check for free rotation of the connecting rod after tightening. Usually requires an angular tightening step not shown.
3

Flywheel Bolts

M8 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Tighten flywheel bolts in a star pattern to ensure even pressure.
4

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Hold the crankshaft while tightening to prevent rotation. Usually requires an angle-based tightening after initial torque.

Engine Block And Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Tighten oil pan bolts in a crisscross pattern to ensure even seal pressure.
2

Oil Filter Cap

M20 x 1.5 (estimated)
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten with new o-ring. Torque value estimated based on similar sized components.
3

Oil Filter Housing Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly to prevent leaks. Torque is appropriate for this size of bolt.
4

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Always use a new crush washer on the oil drain plug.

Valve Train

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten valve cover bolts in a crisscross pattern. Inch-lbs converted to foot-lbs.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Hold the camshaft while tightening to prevent rotation. Ensure proper alignment of timing marks before tightening.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten rocker arm bolts evenly.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
21 ft-lbs (28 N·m)
Important Notes
Ensure correct timing tensioner position before tightening.

Intake And Exhaust System

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten throttle body bolts evenly to ensure a proper seal. Inch-lbs converted to foot-lbs.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Tighten intake manifold bolts in a crisscross pattern. Inch-lbs converted to foot-lbs.
3

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Tighten exhaust manifold bolts evenly. Use new gasket.
4

EGR Valve Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten EGR valve bolts evenly to ensure proper sealing.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten fuel rail bolts evenly. Inch-lbs converted to foot-lbs.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten fuel injector bolts evenly. Inch-lbs converted to foot-lbs.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure spark plugs are properly threaded by hand before tightening. Use a torque wrench to ensure proper compression.
2

Ignition Coil Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten ignition coil bolt evenly. Inch-lbs converted to foot-lbs.

Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten water pump bolts evenly.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten water pump pulley bolts evenly.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten thermostat housing bolts evenly. Inch-lbs converted to foot-lbs.

Sensors And Electronics

1

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten knock sensor bolt carefully. Do not overtighten.
2

Camshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Tighten camshaft position sensor bolt carefully. Inch-lbs converted to foot-lbs.
3

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Tighten crankshaft position sensor bolt carefully. Inch-lbs converted to foot-lbs.
4

Coolant Temperature Sensor Bolt

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Tighten coolant temperature sensor carefully. Inch-lbs converted to foot-lbs.
5

Variable Valve Timing (VVT) Solenoid Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten the VVT solenoid bolts evenly. Inch-lbs converted to foot-lbs.

Engine Mounts

1

Engine Mount Bolts (to engine block)

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper alignment of the engine mount before tightening. Torque is appropriate for this bolt size.

Turbocharger

1

Turbocharger Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Tighten turbocharger mounting bolts in a crisscross pattern. Torque is appropriate for this bolt size.
2

Turbocharger Oil Feed Line Bolts (Banjo Bolt)

M12 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Always use new copper washers on both sides of the banjo fitting. Torque is appropriate for this size of bolt.
3

Turbocharger Oil Drain Line Bolts (Flange bolts)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly using a crisscross pattern. Torque is appropriate for this bolt size.

Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure correct tensioner position before tightening.
2

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten idler pulley bolt evenly.

6t40 Transmission

Torque specifications for 6t40 Transmission

Case Assembly

1

Main Case Halves Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten bolts in a crisscross pattern in 2-3 increments to achieve final torque. Ensure mating surfaces are clean and undamaged.
2

Transmission Side Cover Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten bolts in a circular pattern. Ensure the gasket is properly seated to prevent leaks.

Oil Pan

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even gasket compression and prevent leaks. Do not overtighten, as this can damage the pan or gasket.

Drain Fill Plugs

1

Transmission Drain and Fill Plugs

Estimated M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer or o-ring. Do not overtighten, as this can damage the threads. Bolt size is an educated estimate.

External Components

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure correct transmission alignment. Use proper torque sequence specific to the vehicle mounting points.
2

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Tighten in a crisscross pattern. Ensure that the axle is fully seated against the flange.
3

Transmission Cooler Line Fittings

Estimated M16 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use backup wrench when tightening. Bolt size is an educated estimate. Ensure no cross threading.

Internal Components

1

Valve Body Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten bolts in a crisscross pattern. Do not overtighten, as this can damage the valve body. Ensure valve body is properly seated.
2

Input Speed Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated.
3

Output Speed Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure sensor is properly seated.
4

Shift Shaft Detent Plate Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure detent plate is properly aligned.

Tcm

1

Transmission Control Module (TCM) Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as this can damage the TCM or mounting points. Ensure TCM is correctly aligned.

Body

Torque specifications for Body

Wheel System

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Tighten lug nuts in a star pattern. Ensure proper seating of the wheel against the hub.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure straps are correctly positioned before tightening. Use caution to not overtighten.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the filler neck is properly aligned with the fuel tank opening. Do not overtighten.

Interior System

1

Seat Mounting Bolts

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Torque may vary based on specific seat location; this is an estimated value. Check service manual for specifics.
2

Seat Belt Mounting Bolts (Floor Pan/Body)

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Proper torque on seat belt bolts is critical for safety. This is an estimated value, check service manual for exact specifications.

Exterior System

1

Bumper Cover Mounting Bolts/Screws

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Do not overtighten; these often screw into plastic clips or panels and can be easily damaged. Convert inch-lbs to ft-lbs for this calculation. This value is an estimate.
2

Fender Mounting Bolts

M6 x 1.0
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Sheet metal fasteners, use care when tightening. Convert inch-lbs to ft-lbs for this calculation. This value is an estimate.
3

Hood Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure proper hood alignment. This value is an estimate.
4

Door Hinge Bolts (Body Side)

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure proper door alignment and operation. This value is an estimate.
5

Door Latch Mounting Bolts (Body Side)

M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Correct latch function is critical for safety. This value is an estimate.
6

Tail Light Mounting Bolts/Screws

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Plastic housing requires low torque values; Do not overtighten. Convert inch-lbs to ft-lbs for this calculation. This value is an estimate.

Brakes

Torque specifications for Brakes

Caliper Assembly

1

Caliper Guide Pin Bolts

M10 x 1.5
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
These bolts secure the caliper body to the mounting bracket. Ensure proper lubrication of the guide pins before installation.
2

Caliper Bleeder Screw

M10 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Use a new bleeder screw and ensure a tight seal to prevent leaks. Do not over-tighten. Estimated value.
3

Brake Hose Banjo Bolt at Caliper

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use new crush washers when installing the banjo bolt to ensure proper sealing. Estimated value.

Caliper Mounting Bracket

1

Caliper Mounting Bracket Bolts

M12 x 1.75
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
These bolts attach the bracket to the steering knuckle or axle carrier. Ensure the bracket is properly seated before tightening.

Rotor Drum

1

Rotor/Drum Retaining Screws

M6 x 1.0
Torque Specification
21 ft-lbs (28 N·m)
Important Notes
These screws hold the rotor or drum to the hub. Typically these are very low torque and often are screws rather than bolts.

Brake Hoses And Lines

1

Brake Hose Banjo Bolt at Frame/Body

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use new crush washers when installing the banjo bolt to ensure proper sealing. Estimated value.
2

Brake Line Flare Nut Fittings

M10 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
This value is an estimate and can vary based on line size. Ensure to properly seat the fitting before tightening. Overtightening can cause damage.

Master Cylinder

1

Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
These bolts secure the master cylinder to the brake booster. Tighten the bolts evenly and in a cross pattern. Estimated value.
2

Brake Pedal Push Rod Clevis/Nut

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure that the clevis is properly aligned with the pedal and master cylinder rod. Do not over tighten, ensure proper movement. Estimated value.

Parking Brake

1

EPB Actuator Mounting Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure proper alignment of the actuator before tightening the mounting bolts. Tighten evenly, Estimated Value.

Drivetrain

Torque specifications for Drivetrain

Engine Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Torque bolts in a star pattern to ensure even clamping force.

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment before final tightening. Check alignment between engine and transmission prior to torquing all bolts to specification
2

Transmission Bellhousing Bolts to Engine

M12 x 1.75
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value. Refer to service manual for specific value. Torque bolts in a circular pattern to evenly distribute clamping force.

Transmission Components

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Use a new gasket when reinstalling the oil pan. Torque bolts in a crisscross pattern to avoid leaks.
2

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer or gasket to prevent leaks.
3

Transmission Fluid Drain/Fill Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer or gasket to prevent leaks.

Drive Axle Components

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
These are typically flange bolts. Ensure proper alignment before torquing.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
This nut secures the CV joint and axle assembly to the wheel hub. Use a new nut if recommended by the service manual.

Propeller Shaft

1

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Check the condition of the flex disc or u-joints before re-installation. Ensure proper alignment.
2

Output Shaft Flange Bolts

M10 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value. Refer to service manual for specific value. Ensure proper alignment.

Differential

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use a new sealing washer or gasket to prevent leaks.
2

Differential Mounting Bolts

M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Estimated value. Refer to service manual for specific value. Torque bolts evenly for correct mounting.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use a new sealing washer or gasket to prevent leaks.

Starter Motor

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter is properly seated before torquing.

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
Ensure coil is seated properly before tightening. Do not over tighten to prevent damage to the coil or mounting surface.

Starting System

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure starter is properly aligned with the engine block or transmission housing before torquing. Avoid cross threading the bolts.

Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment to prevent vibration and misalignment. Do not overtighten bolts, as this may damage the alternator.

Battery System

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten terminals securely without over-tightening. Ensure that the connections are clean and free from corrosion before assembly.

Engine Control Module

1

ECM/ECU Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Tighten bolts to the chassis mounting surface to ensure a secure ground. Avoid cross threading the bolts or over tightening which could cause damage.

Grounding System

1

Ground Strap Bolts to Chassis

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure both the chassis and strap attachment point are clean and free from corrosion. Securely mounting provides a low-resistance path for electrical current.

Sensors

1

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

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure sensors are properly seated in their mounting positions. Do not overtighten.

Power Distribution

1

Fuse Box/Power Distribution Center Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment to its mounting location. Over tightening these bolts could damage the mounting tabs or box itself.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure even torque distribution. Use a criss-cross pattern when tightening.
2

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
These bolts connect exhaust manifold sections or heat shields. Use even torque distribution.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Proper torque is needed to prevent exhaust leaks. Use new gaskets where applicable.
4

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Use new gaskets where applicable and tighten evenly to prevent leaks.
5

Oxygen (O2) Sensor

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use anti-seize compound on threads. Do not over tighten.
6

Air Fuel Ratio (AFR) Sensor

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use anti-seize compound on threads. Do not over tighten.
7

Nitrogen Oxide (NOx) Sensor

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use anti-seize compound on threads. Do not over tighten.
8

Diesel Particulate Filter (DPF) Mounting Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure even torque distribution. Use a criss-cross pattern when tightening.

Intake System

1

Mass Air Flow (MAF) Sensor Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Do not over tighten. These are small bolts that can be easily damaged.
2

Manifold Absolute Pressure (MAP) Sensor Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Do not over tighten. These are small bolts that can be easily damaged.

Evaporative Emissions System

1

Evaporative Emission (EVAP) Purge Valve Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over tighten. Use even torque distribution.
2

EVAP Canister Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over tighten. Use even torque distribution.

Diesel Particulate Filter System

1

Diesel Particulate Filter (DPF) Pressure Sensor Mounting Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not over tighten. Use even torque distribution.

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure even torque distribution. Use a criss-cross pattern when tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure cylinder head threads are clean. Use new gaskets. Apply high temperature anti-seize to threads.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure exhaust pipe and manifold flanges are clean and flat. Replace gasket.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Replace gasket. Ensure flange mating surfaces are clean and flat.

Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper alignment. Replace gasket. Use anti-seize if necessary.

Oxygen Sensor

1

Oxygen (O2) Sensor Torque

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Do not apply anti-seize to threads or sensor body. Torque must be precise to avoid damage.

Exhaust Hangers

1

Exhaust Hanger Bolts/Nuts (Body side)

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure bolts are not damaged and threads are clean. Torque evenly.
2

Exhaust Hanger Clamp Bolts/Nuts (Exhaust side)

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure clamp and pipe are properly aligned. Torque evenly.

Exhaust Flanges

1

Exhaust Flange Bolts/Nuts (M8)

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Used for general exhaust flange connections. Use anti-seize.
2

Exhaust Flange Bolts/Nuts (M10)

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Used for general exhaust flange connections. Use anti-seize.

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
Ensure the fuel rail is properly seated before tightening the bolts. Torque all bolts to spec. Always replace fuel system fasteners when instructed in a repair manual.
2

Fuel Injector Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure the fuel injector is properly seated with new O-rings. Torque all bolts to spec. Always replace fuel system fasteners when instructed in a repair manual.
3

Fuel Line Fitting at Fuel Rail/Injector

M12 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
This is a general torque for fuel line fittings, always verify from OEM source. Ensure the fitting is properly aligned to prevent cross-threading. Use new O-rings or crush washers. Always replace fuel system fasteners when instructed in a repair manual.
4

Fuel Pressure Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure the sensor is properly seated with new O-ring. Always replace fuel system fasteners when instructed in a repair manual.

Fuel Pump

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fuel pump assembly is correctly positioned on the tank before tightening the bolts. If the pump assembly has a gasket, make sure to install the new gasket correctly. Always replace fuel system fasteners when instructed in a repair manual.

Fuel Tank

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the fuel tank is properly aligned with the vehicle's underbody before tightening. Tighten the straps evenly. Always replace fuel system fasteners when instructed in a repair manual.

Fuel Filler Neck

1

Fuel Filler Neck Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fuel filler neck is properly aligned and seated against the body. Always replace fuel system fasteners when instructed in a repair manual.

Fuel Filter

1

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fuel filter is properly seated and aligned to the fuel line before tightening the bolt/nut. Always replace fuel system fasteners when instructed in a repair manual.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
These bolts secure the A/C compressor to the engine mounting bracket. Ensure proper alignment before tightening.
2

A/C Line Fittings

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These fittings connect the refrigerant lines to the compressor and other components. Overtightening can damage the seals and lead to leaks.

Ac Condenser

1

A/C Condenser Mounting Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
These bolts secure the condenser to the radiator support or vehicle frame. Torque value converted from inch-lbs to ft-lbs.

Evaporator Core

1

Evaporator Core Mounting Bolts

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These bolts secure the evaporator core within the HVAC housing. Torque value converted from inch-lbs to ft-lbs.
2

Expansion Valve Mounting Bolts/Studs

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These bolts/studs secure the expansion valve to the evaporator core or refrigerant lines. Torque value converted from inch-lbs to ft-lbs.

Blower Motor

1

HVAC Blower Motor Mounting Bolts

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These bolts secure the blower motor housing to the HVAC unit. Torque value converted from inch-lbs to ft-lbs.

Receiver Drier

1

Receiver Drier Mounting Bolts

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
These bolts secure the receiver drier to the vehicle chassis or mounting bracket. Torque value converted from inch-lbs to ft-lbs.

Actuators

1

Mode Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
3.3 ft-lbs (4.5 N·m)
Important Notes
These screws secure the mode door actuator to the HVAC housing. Torque value converted from inch-lbs to ft-lbs. Do not overtighten these screws as the threads are plastic, and can easily be stripped.
2

Temperature Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
3.3 ft-lbs (4.5 N·m)
Important Notes
These screws secure the temperature door actuator to the HVAC housing. Torque value converted from inch-lbs to ft-lbs. Do not overtighten these screws as the threads are plastic, and can easily be stripped.

Suspension

Torque specifications for Suspension

Front Struts

1

Upper Strut Mounting Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
These bolts secure the upper strut mount to the vehicle's chassis.
2

Lower Strut to Steering Knuckle Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
These bolts connect the lower part of the strut to the steering knuckle. These bolts are critical for correct suspension and steering function.

Front Control Arms

1

Control Arm Mounting Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (109 N·m)
Important Notes
These bolts secure the control arm to the vehicle's subframe. Ensure proper torque for correct suspension geometry.
2

Ball Joint Nut

M12 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
This nut secures the ball joint stud to the steering knuckle. Be sure to follow torque spec to prevent binding or play.

Steering

1

Tie Rod End Nut

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
This nut secures the tie rod end to the steering knuckle. Proper torque is essential for accurate steering and alignment.

Sway Bar

1

Sway Bar Link Nut

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
These nuts secure the sway bar links to the sway bar and strut. Important to maintain anti-roll function.
2

Sway Bar Mounting Bracket Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
These bolts secure the sway bar mounting brackets to the chassis. Proper torque is crucial for sway bar effectiveness.

Rear Suspension

1

Rear Trailing Arm Bolts

M14 x 1.5
Torque Specification
77 ft-lbs (105 N·m)
Important Notes
These bolts secure the rear trailing arm to the chassis, ensure proper rear suspension geometry and control. This value is an estimation based on similar bolts on other Buick models.
2

Rear Shock Absorber Lower Mounting Bolts/Nuts

M12 x 1.75
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
These bolts secure the lower part of the rear shock absorber to the suspension components. Proper torque for the rear shock to ensure vehicle stability. This value is an estimation based on similar bolts on other Buick models.

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 value for the lug nuts on a 2020-Present Buick Encore?

100 ft-lbs

Q2

What IS the proper sequence for tightening the lug nuts on a 2020-Present Buick Encore?

Follow the star pattern: Tighten lug nuts in a crisscross pattern, starting with the lug nut at the top of the wheel. Tighten each lug nut to the recommended torque value (100 ft-lbs).

Q3

What type of torque wrench do I need to use for a 2020-Present Buick Encore?

Calibrated click-type or electronic torque wrench

Q4

Can I use a torque multiplier to achieve higher torque values on a 2020-Present Buick Encore?

Yes, however, it IS important to use a torque multiplier that IS specifically designed for the job and adhere to safety guidelines.

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

Electronic Torque Wrench (10-100 Nm)

Essential for tightening bolts to exact torque specifications, preventing damage and ensuring proper assembly. This range accommodates most applications on the encore.

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

Engine Component Bolt Torque Specifications

Overview of torque specifications for engine components on Buick encore models.

  • Cylinder head bolts: 20 Nm (15 ft-lb)
  • Intake manifold bolts: 12 Nm (9 ft-lb)
  • Exhaust manifold bolts: 15 Nm (11 ft-lb)
  • Timing chain cover bolts: 10 Nm (7 ft-lb)
View full procedure

Suspension Component Bolt Torque Specifications

Overview of torque specifications for suspension components on Buick encore models.

  • Control arm bolts: 100 Nm (74 ft-lb)
  • Sway bar link bolts: 25 Nm (18 ft-lb)
  • Strut bolts: 50 Nm (37 ft-lb)
  • Wheel bolts: 100 Nm (74 ft-lb)
View full procedure

Brake Component Bolt Torque Specifications

Overview of torque specifications for brake components on Buick encore models.

  • Caliper bolts: 100 Nm (74 ft-lb)
  • Rotor bolts: 25 Nm (18 ft-lb)
  • Master cylinder bolts: 20 Nm (15 ft-lb)
  • Brake line bolts: 10 Nm (7 ft-lb)
View full procedure
Technical Service Bulletins

Powertrain Mounting Bolt Torque Correction

2023-03-08

Updated torque specifications for powertrain mounting bolts on certain 2020-2023 encore models.

2020-2022 encore Gasoline 2023 encore GX

Resolution: Tighten powertrain mounting bolts to 130 Nm (96 ft-lb)

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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.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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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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