Cadillac Vehicle Models XT6 2020-present Torque Specifications
Cadillac Vehicle Models XT6 2020-present

Cadillac Vehicle Models XT6 2020-present Torque Specifications

Complete Cadillac Vehicle Models XT6 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

3.6l Engine

Torque specifications for 3.6L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90° 3. 90°
Important Notes
Follow specific torque sequence pattern. Final angle tightening is critical for proper clamping.
2

Camshaft Bearing Cap Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Follow specific torque sequence pattern to ensure even clamping across camshaft journals.

Engine Block

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten in a specified sequence to ensure even clamping of the main bearing caps.
2

Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even pressure and proper sealing.
3

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure sensor is properly aligned and bolt is torqued correctly for accurate readings

Connecting Rods

1

Connecting Rod Nuts

M9 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure proper orientation of connecting rod and cap. Tighten in specified sequence.

Rotating Assembly

1

Flywheel Bolts

M11 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Tighten in a star pattern to ensure even clamping and prevent distortion.
2

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure the pulley is properly seated before torquing the bolt. Use crankshaft holding tool if necessary.

Valve Train

1

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten evenly to ensure proper rocker arm alignment and operation.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Use camshaft holding tool to prevent rotation while torquing. Ensure timing marks are aligned.
3

Variable Valve Timing (VVT) Solenoid Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly to prevent leaks and ensure proper solenoid function.

Engine Covers

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure an even seal.

Intake System

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten in a specific sequence (usually from center outwards) to prevent vacuum leaks.
2

Throttle Body Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure a proper seal to prevent air leaks. Tighten evenly.
3

EGR Valve Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure a proper seal to prevent exhaust leaks. Tighten evenly.

Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a sequence from the center outwards to prevent leaks and ensure even pressure.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten evenly to ensure a leak-free seal.
2

Fuel Injector Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure injectors are properly seated. Tighten evenly to prevent fuel leaks. Estimated value.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper seating to prevent leaks and heat transfer issues.
2

Ignition Coil Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the coil pack.

Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure a proper seal.
2

Water Pump Pulley Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure pulley is properly seated.
3

Thermostat Housing Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure a leak-free seal. Tighten evenly.

Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Proper torque ensures correct belt tension.
2

Drive Belt Idler Pulley Bolt

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Proper torque is needed for correct belt alignment and prevent vibrations.

Lubrication System

1

Oil Filter Housing Bolt

Not Applicable
Torque Specification
N/A
Important Notes
Hand tighten until snug, then turn an additional 1/4 to 1/2 turn. No specific torque is specified for this component.
2

Oil Drain Plug Bolt

M12 x 1.75
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures a leak-free seal. Do not overtighten to prevent damage to the threads on the oil pan.

9t50 Transmission

Torque specifications for 9t50 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure all mounting surfaces are clean and free of debris. Use new bolts when possible for optimum clamping force. Torque all bolts evenly.
2

Transmission Bellhousing Bolts to Engine Block

M12 x 1.75
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even clamping pressure. These bolts connect the bellhousing to the engine block and are critical for proper alignment and secure attachment.

Transmission Case

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a criss-cross pattern to avoid oil leaks. Do not overtighten. Inch pounds converted to ft-lbs.
2

Transmission Fluid Cooler Line Fittings

M14 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These are usually banjo-type fittings. Ensure sealing washers are in good condition and positioned correctly. Estimated value based on similar size fittings.
3

Transmission Drain and Fill Plugs

M20 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the plug sealing washer is in good condition. Do not overtighten.
4

Transmission Range/Position Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten. Inch pounds converted to ft-lbs. Use care in installation and be certain no damage has occurred to the sensor itself during the mounting process.
5

Transmission Control Module (TCM) Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten. Inch pounds converted to ft-lbs. Ensure proper electrical connections are made before mounting the TCM. Handle TCM carefully to avoid damage.
6

Input Speed Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten. Inch pounds converted to ft-lbs. Ensure proper electrical connections are made before mounting the speed sensor. Use caution while handling the speed sensor.
7

Output Speed Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten. Inch pounds converted to ft-lbs. Ensure proper electrical connections are made before mounting the speed sensor. Use caution while handling the speed sensor.
8

Transmission Valve Body Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even pressure. Do not overtighten as this may damage the valve body.

Driveline

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
Typically these bolts attach the CV joint flange to the transmission output flange. Apply even torque.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
These nuts secure the drive axle at the wheel hub. Ensure that the axle threads are clean and free of debris. Always use a new nut.

Body

Torque specifications for Body

Wheels And Tires

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
140 ft-lbs (190 N·m)
Important Notes
Ensure lug nuts are tightened in a star pattern. Incorrect torque can lead to wheel separation.

Fuel System

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent fuel leaks.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure all strap bolts are tightened evenly to prevent fuel tank movement.

Body Panels

1

Body Panel Mounting Bolts (General)

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque values may vary based on bolt size and location. This is an estimated value. Use care when tightening to avoid panel deformation.
2

Bumper Mounting Bolts/Nuts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Torque values may vary based on bolt location and bumper type. This is an estimated value.
3

Hood Hinges/Latch Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque evenly to ensure proper hood alignment and latch operation. This is an estimated value.
4

Door Hinge Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque evenly to ensure smooth door operation and alignment. This is an estimated value.
5

Trunk/Liftgate Hinges Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Torque evenly to ensure proper trunk/liftgate alignment and operation. This is an estimated value.

Lighting

1

Headlight/Taillight Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not over-tighten, as these are often self-tapping into plastic. This is an estimated value.

Grille And Fascia

1

Grille Mounting Bolts/Screws

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Do not over-tighten, as these are often self-tapping into plastic. This is an estimated value.

Roof And Glass

1

Sunroof/Moonroof Mounting Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Torque evenly to prevent leaks and ensure proper operation. This is an estimated value.

Interior Trim

1

Interior Trim Panel Screws/Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Do not over-tighten, as these are often self-tapping into plastic. This is an estimated value.

Seating

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Torque values may vary by seat location. This is an estimated value. Ensure all bolts are properly tightened for passenger safety.

Running Boards

1

Running Board/Side Step Mounting Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure bolts are tightened evenly for safety. This is an estimated value.

Brakes

Torque specifications for Brakes

Brake Calipers

1

Brake Caliper Mounting Bolts

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Always use new caliper mounting bolts. Ensure the bolts are tightened evenly.
2

Brake Caliper Bleeder Screw

M10 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Do not overtighten. Bleeder screws are easily damaged.

Caliper Brackets

1

Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
These bolts are high-strength and must be properly torqued. Ensure the bracket is seated correctly before tightening.

Brake Rotors

1

Brake Rotor Retaining Screw

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten. This screw is for alignment only.

Wheel Hardware

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
140 ft-lbs (190 N·m)
Important Notes
Torque lug nuts in a star pattern. Ensure proper seating of wheel on hub.

Brake Lines

1

Brake Line/Hose Fitting at Caliper

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure fitting is properly aligned before tightening. Do not overtighten, can damage threads.
2

Brake Line/Hose Fitting at Master Cylinder

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure fitting is properly aligned before tightening. Do not overtighten, can damage threads.
3

Brake Line/Hose Fitting at ABS Module

M10 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure fitting is properly aligned before tightening. Do not overtighten, can damage threads.

Master Cylinder Booster

1

Brake Master Cylinder to Booster Nuts/Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the master cylinder is properly seated on the booster before tightening. Tighten evenly.
2

Brake Booster to Firewall Nuts/Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the brake booster is correctly positioned on the firewall before tightening. Tighten evenly.

Parking Brake

1

Parking Brake Cable Adjuster Nut

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten until the correct parking brake adjustment is achieved. Do not overtighten.

Drivetrain

Torque specifications for Drivetrain

Engine Interface

1

Flywheel Bolts

M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Tighten bolts in a star pattern. Ensure flywheel is properly aligned. This torque applies to both manual transmission flywheels and flexplates for automatic transmissions.
2

Flexplate Bolts

M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Tighten bolts in a star pattern. Ensure flexplate is properly aligned. This torque is same as flywheel bolts.
3

Torque Converter Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Tighten bolts in a star pattern. Ensure torque converter is fully seated into the transmission.
4

Starter Motor Mounting Bolts

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

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment of the transmission to the engine block before tightening. Typically there are a few different bolt sizes; use the correct bolt for each location.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
8.08 ft-lbs (11 N·m)
Important Notes
Tighten bolts in a cross pattern. Ensure gasket is properly seated to prevent leaks. Low torque to avoid damaging the pan or gasket.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Use a new sealing washer if specified. Do not over-tighten.
4

Transmission Output Flange Nut

M24 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
This nut secures the output flange to the transmission output shaft. If re-using the nut, it should be checked after installation.

Transfer Case

1

Transfer Case Drain and Fill Plugs

M18 x 1.5
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
Use a new sealing washer if specified. Do not over-tighten.
2

Input Shaft/Transfer Case Flange Nut

M24 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
This nut secures the input flange to the transfer case input shaft. If re-using the nut, it should be checked after installation.

Driveshaft

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Use new bolts when available. Ensure proper alignment when installing.

Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
118 ft-lbs (160 N·m)
Important Notes
Tighten in a star pattern. Ensure proper seating of the axle flange. May have specific torque procedure, refer to the vehicle specific service manual.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
Ensure nut is properly secured with a new cotter pin or locking mechanism. This torque is critical for proper wheel bearing preload.
3

CV Axle Retaining Bolt

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensures secure connection at the spline interface.

Differential

1

Differential Housing Mounting Bolts

M12 x 1.75
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value. Refer to vehicle-specific manual for exact torque. Use proper mounting bolts for the application.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
24 ft-lbs (33 N·m)
Important Notes
Use a new sealing washer if specified. Do not over-tighten.
3

Differential Pinion Flange Nut

M27 x 2.0
Torque Specification
150 ft-lbs (203 N·m)
Important Notes
Estimated value. This is an important torque that affects pinion bearing preload. Refer to vehicle specific manual for correct procedure.
4

Output Flange Nut/Bolt (Differential)

M12 x 1.75
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated value. These connect the axle flanges to the differential. Refer to vehicle-specific service manual for specific procedure.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the coil before tightening. Do not overtighten as it can damage the coil. These bolts are typically small and require careful torque application.

Starter And Alternator

1

Starter Motor Mounting Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter is seated properly against the engine block before tightening. These bolts are critical to ensure proper starter engagement.
2

Alternator Mounting Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Verify proper alignment of the alternator. Proper torque prevents vibration and ground issues.

Battery System

1

Battery Terminal Nut

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not over-tighten battery terminal nuts. Overtightening may damage the terminal or the battery post. Ensure the terminal is fully seated.

Ecm Bcm

1

Engine Control Module (ECM) Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts must be torqued carefully to prevent damage to the ECM housing. Ensure proper alignment prior to tightening. Value is estimated.
2

Body Control Module (BCM) Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts must be torqued carefully to prevent damage to the BCM housing. Ensure proper alignment prior to tightening. Value is estimated.

Grounding System

1

Ground Strap/Wire Mounting Bolt (Various Locations)

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure clean mating surfaces for good electrical contact. These bolts may be in various locations. Value is estimated.

Power Distribution

1

Fuse Box/Power Distribution Center Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the box is properly seated before tightening the bolts. This could be a single bolt or multiple, depending on the specific mounting. Value is estimated.

Lighting System

1

Headlight Assembly Mounting Bolt/Screw

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure proper alignment of the headlight assembly before tightening. These are usually small bolts or screws. Value is estimated.
2

Tail Light Assembly Mounting Bolt/Screw

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure proper alignment of the tail light assembly before tightening. These are usually small bolts or screws. Value is estimated.

Sensors

1

Sensor Mounting Bolt/Screw (Various)

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Do not over-tighten as sensors are delicate and could be damaged with excessive force. Value is estimated.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten bolts in a sequence specified by the service manual, starting from the center and working outward. Use a calibrated torque wrench to achieve proper torque. Failure to do so could result in exhaust leaks and inaccurate sensor readings.
2

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
These bolts connect sections of the exhaust manifold or headers. Ensure all sealing surfaces are clean for a leak-free connection. Use a calibrated torque wrench to achieve proper torque.

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten the EGR valve bolts evenly to avoid distorting the valve or creating leaks. Use a calibrated torque wrench.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
These bolts secure the catalytic converter to the exhaust system. Proper torque is essential for a leak-free connection. Use a calibrated torque wrench.
2

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
These bolts secure the muffler to the exhaust system. Proper torque is essential for a leak-free connection. Use a calibrated torque wrench.

Oxygen Sensors

1

Standard Threaded O2 Sensor

M18 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
The O2 sensor is typically threaded into an exhaust bung. Do not overtighten. Use a calibrated torque wrench. Apply anti-seize to threads as needed.
2

Flange Mount O2 Sensor Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
These bolts secure the O2 sensor flange to the exhaust system. Tighten bolts evenly. Use a calibrated torque wrench. Value estimated based on bolt size and application.

Air Intake Sensors

1

Mass Airflow (MAF) Sensor Bolts

M4 x 0.7
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These small bolts or screws secure the MAF sensor to the air intake tube. Do not overtighten to prevent damage to the sensor or the plastic intake tube. Use a calibrated torque wrench.
2

Manifold Absolute Pressure (MAP) Sensor Bolt

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This small screw or bolt secures the MAP sensor to the intake manifold. Do not overtighten to avoid leaks or damage to the sensor. Use a calibrated torque wrench.

Nox Sensor

1

Nitrogen Oxide (NOx) Sensor Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the NOx sensor to the exhaust system. Ensure proper sealing for accurate readings. Use a calibrated torque wrench.

Particulate Matter Sensor

1

Particulate Matter Sensor Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the particulate matter sensor to the exhaust system. Ensure proper sealing for accurate readings. Use a calibrated torque wrench. Value is estimated based on bolt size and application.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold/Header to Cylinder Head

M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 25 ft-lbs (34 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Final torque is 25 ft-lbs (34 N·m)
2

Exhaust Manifold/Header to Exhaust Pipe

M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 30 ft-lbs (41 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Final torque is 30 ft-lbs (41 N·m).

Exhaust Midpipe

1

Exhaust Pipe to Catalytic Converter

M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 30 ft-lbs (41 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Final torque is 30 ft-lbs (41 N·m).
2

Mid-Pipe Spring Bolt Flange

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Spring bolts should be tightened evenly, but not fully compressed. This value is estimated.

Exhaust Muffler

1

Muffler to Exhaust Pipe

M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 30 ft-lbs (41 N·m)
Important Notes
Tighten bolts in a criss-cross pattern. Final torque is 30 ft-lbs (41 N·m).

Exhaust Support

1

Exhaust Hanger Bracket to Chassis

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Verify bracket is properly aligned before tightening, torque is an estimate. Do not overtighten.

Exhaust Sensors

1

Oxygen (O2) Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use caution, do not overtighten. Value is estimated.

Fuel

Torque specifications for Fuel

Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Torque bolts in a criss-cross pattern to ensure even pressure and prevent leaks.
2

Fuel Injector Bolts/Studs

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure injectors are properly seated before tightening. Insufficient torque can cause leaks, while excessive torque can damage the injector or its sealing components.
3

Fuel Pressure Sensor/Regulator

M14 x 1.5
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the sensor threads are clean and apply sealant if necessary. Do not overtighten to prevent sensor damage.

Fuel Pump And Tank

1

Fuel Pump Module Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten bolts evenly to secure the fuel pump module to the fuel tank and prevent leaks.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Tighten bolts evenly to secure the fuel tank straps to the chassis. Ensure proper strap alignment before torquing.

Fuel Lines And Filter

1

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Proper torque is needed to ensure the fuel filter is securely mounted and that fuel lines are sealed properly.
2

Fuel Line Fitting (Hard Line)

Varies by application
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
This is an estimate. Always refer to the vehicle-specific service manual for the precise torque of each fitting. Typically, fittings vary in size and material. The value provided is for typical line sizes in this application, and should be verified. Overtightening may damage the fittings.

Fuel Filler And High Pressure

1

Fuel Filler Neck Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten evenly to prevent fuel leaks during refueling. Ensure proper alignment of the filler neck before torquing.
2

High-Pressure Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Tighten bolts evenly for proper pump operation and to avoid leaks.

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 tightened evenly to prevent compressor misalignment. Check for proper thread engagement and replace bolts if damaged.

Ac Lines And Fittings

1

A/C Line Fittings

N/A
Torque Specification
N/A
Important Notes
Tighten fittings by hand until resistance is met, then slightly more to seat the seal. Overtightening can damage seals and cause leaks.

Ac Condenser

1

A/C Condenser Mounting Bolts/Nuts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the condenser. Do not over tighten self-threading fasteners. Torque values may change if self threading.

Ac Evaporator

1

A/C Evaporator Core Housing Bolts/Nuts

M5 x 0.8
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
These fasteners secure plastic housings, avoid over-tightening. The torque value may be estimated based on component and fastener size.

Blower Motor

1

HVAC Blower Motor Mounting Screws

M5 x 0.8
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Ensure proper alignment of the blower motor. These screws are often self-tapping into plastic and over tightening can cause stripping.

Control Module

1

HVAC Control Module Mounting Screws

M4 x 0.7
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
These screws secure the control module’s plastic housing, avoid over-tightening. Torque value is estimated.

Ac Pressure Sensor

1

A/C Pressure Sensor Mounting Bolts

M6 x 1.0
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Ensure proper seating of the sensor O-ring or seal. Do not overtighten, values are estimated.

Ac Expansion Valve

1

A/C Expansion Valve Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper seating of the expansion valve. Correct torque is crucial to prevent refrigerant leaks at the seals.

Blend Door Actuator

1

Blend Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
These screws are often self-tapping into plastic. Over-tightening can cause stripping or damage. Torque value is estimated.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Lower Mounting Bolts

M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Torque to specification. Ensure proper strut alignment before tightening.
2

Strut/Shock Upper Mounting Nuts/Bolts (to Body)

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Torque to specification. Ensure proper strut alignment before tightening.
3

Upper Control Arm Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten with vehicle at ride height if possible. Ensure no binding before tightening. Estimated value.
4

Lower Control Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten with vehicle at ride height if possible. Ensure no binding before tightening. Estimated value.
5

Front Wheel Hub/Bearing Assembly Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten the bolts in a star pattern. Estimated value.
6

Ball Joint Nut

M12 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure ball joint is properly seated before tightening.
7

Tie Rod End Nut

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper tie rod alignment before tightening.
8

Sway Bar Link Nut (to Strut/Control Arm)

M10 x 1.5
Torque Specification
46 ft-lbs (62 N·m)
Important Notes
Torque to specification. Ensure no binding.
9

Sway Bar Frame Mount Bolts

M12 x 1.75
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Torque to specification. Ensure proper sway bar alignment. Estimated value.
10

Stabilizer Bar Link-to-Stabilizer Bar Bolt/Nut

M10 x 1.5
Torque Specification
46 ft-lbs (62 N·m)
Important Notes
Torque to specification. Ensure no binding.

Rear Suspension

1

Rear Upper Control Arm to Knuckle Bolt

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten with vehicle at ride height if possible. Ensure no binding before tightening. Estimated value.
2

Rear Lower Control Arm to Knuckle Bolt

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten with vehicle at ride height if possible. Ensure no binding before tightening. Estimated value.
3

Rear Wheel Hub/Bearing Assembly Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten the bolts in a star pattern. Estimated value.
4

Rear Toe Link Bolts (Knuckle & Frame)

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten with vehicle at ride height if possible. Ensure no binding before tightening. Estimated value.

Air Suspension

1

Ride Height Sensor Link Nut/Bolt

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque to specification. Ensure proper linkage movement after tightening. Estimated value.

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 proper torque specification for the lug nuts on my 2020-Present Cadillac xt6?

140 ft-lbs (190 Nm) using a properly calibrated torque wrench.

Q2

What torque value should I use for the oil drain plug on my 2020-Present Cadillac xt6?

29 ft-lbs (39 Nm) IS the recommended torque for the oil drain plug.

Q3

IS it safe to use a torque wrench other than the Cadillac-recommended model?

No, it IS recommended to use only torque wrenches that meet the specifications outlined by Cadillac for your vehicle.

Q4

How often should I check the torque of my vehicle's bolts?

Torque values should be checked and verified according to the maintenance intervals specified in your vehicle's owner's manual.

Q5

Can I use a lubricant or anti-seize compound on bolts before applying torque?

Yes, in some cases, a small amount of lubricant or anti-seize compound can be beneficial, but only when specified in the service manual for your specific application.

Q6

What are the consequences of over-torquing or under-torquing bolts?

Over-torquing can damage threads, stretch bolts, and lead to future failures. Under-torquing can result in loose connections, leaks, and potential safety hazards.

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 xt6.

  • 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

Tightening Sequences for Cadillac XT6

Technical procedure outlining the proper tightening sequences for various components on the Cadillac xt6, including torque specifications.

  • 1. Tighten bolts in a star pattern, starting from the center and working outward.
  • 2. Always use new bolts and washers when replacing old ones.
  • 3. Apply a small amount of thread locker to the bolts before tightening.
  • 4. Torque bolts to the specified values using a digital torque wrench.
  • 5. Double-check all torque values after tightening.
View full procedure
Technical Service Bulletins

Fastener Torque Specifications for Cadillac XT6

2022-06-15

Official technical service bulletin released by Cadillac providing updated torque specifications for various fasteners on the xt6.

2020-Present xt6

Resolution: Refer to the attached document for the complete list of updated torque specifications.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

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.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

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.

Facebook Contact
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.

© 2025 Cadillac Specs. All rights reserved.

Privacy Policy Terms of Service