Cadillac Vehicle Models XTS 2013-2019 Torque Specifications
Cadillac Vehicle Models XTS 2013-2019

Cadillac Vehicle Models XTS 2013-2019 Torque Specifications

Complete Cadillac Vehicle Models XTS 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

3.6l Engine

Torque specifications for 3.6L Engine

Cylinder Head

1

Cylinder Head Bolts

M11 x 1.5
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90° 3. 70°
Important Notes
Tighten in specified sequence. Final torque is achieved through angle tightening after initial torque value.
2

Cylinder Head Cover/Camshaft Carrier Bolts

M8 x 1.25
Torque Specification
1. 6.2 ft-lbs (8.5 N·m) 2. 45°
Important Notes
The camshaft carrier also serves as the cylinder head cover. Tighten in a two-step torque sequence.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures rocker arm shafts to the cylinder head.

Crankshaft And Rotating Assembly

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
1. 44 ft-lbs (60 N·m) 2. 45°
Important Notes
Critical for securing crankshaft. Tighten in a two step torque procedure.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Secures connecting rod caps to connecting rods.
3

Flywheel Bolts

M10 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Secures the flywheel to the crankshaft.
4

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures the crankshaft pulley/harmonic balancer to the crankshaft.

Engine Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures the timing chain tensioner.
2

Camshaft Sprocket Bolts

M10 x 1.5
Torque Specification
73 ft-lbs (99 N·m)
Important Notes
Secures camshaft sprockets to the camshafts.

Engine Lubrication System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the oil pan to the engine block. Note torque value is in ft-lbs to match the original data.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Seals the oil pan drain. Use a new crush washer on installation.
3

Oil Filter Housing Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Hand Tight. Do not overtighten. Value is an estimated value based on typical values for this bolt size.

Engine Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures water pump to the engine block. Note torque value is in ft-lbs to match the original data.
2

Water Pump Pulley Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures water pump pulley to water pump hub.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the thermostat housing. Note torque value is in ft-lbs to match the original data.
4

Engine Coolant Temperature (ECT) Sensor

M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque spec for the sensor that threads into the engine.

Intake And Fuel System

1

Intake Manifold Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the intake manifold to the cylinder heads. Note torque value is in ft-lbs to match the original data.
2

Throttle Body Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the throttle body to the intake manifold. Note torque value is in ft-lbs to match the original data.
3

Fuel Rail Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the fuel rail to the intake manifold or cylinder head. Note torque value is in ft-lbs to match the original data.
4

Fuel Injector Bolts

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures fuel injectors to intake manifold or cylinder head. Note torque value is in ft-lbs to match the original data.
5

Mass Air Flow (MAF) Sensor Bolts

M5 x 0.8
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Secures the MAF sensor to the intake. Note torque value is in ft-lbs to match the original data.

Exhaust System

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the exhaust manifolds to the cylinder heads.
2

EGR Valve Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the EGR valve to the intake or exhaust manifold.

Engine Sensors And Electronics

1

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures knock sensors to the engine block or intake manifold.
2

Camshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Mounts the camshaft position sensors to the engine. Note torque value is in ft-lbs to match the original data.
3

Crankshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures the crankshaft position sensor to the engine. Note torque value is in ft-lbs to match the original data.
4

Variable Valve Timing (VVT) Solenoid Bolt

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures VVT solenoids to the cylinder heads. Note torque value is in ft-lbs to match the original data.
5

Ignition Coil Bolt

M6 x 1.0
Torque Specification
6.7 ft-lbs (9 N·m)
Important Notes
Secures ignition coils. Note torque value is in ft-lbs to match the original data.

Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures the belt tensioner to the engine.
2

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the idler pulley to the engine.

6t70 Transmission

Torque specifications for 6t70 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure bolts are clean and threads are in good condition. Torque evenly.

Transmission Case

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
6.66 ft-lbs (9 N·m)
Important Notes
Torque bolts in a crisscross pattern. Overtightening may deform the pan and cause leaks.
2

Transmission Valve Body Bolts

M6 x 1.0
Torque Specification
7.41 ft-lbs (10 N·m)
Important Notes
Torque bolts in a crisscross pattern. Ensure proper alignment of the valve body.
3

Transmission Control Module (TCM) Mounting Bolts

M6 x 1.0
Torque Specification
7.41 ft-lbs (10 N·m)
Important Notes
Ensure proper grounding of the TCM. Do not overtighten.
4

Transmission Range Sensor (TRS) Bolts

M6 x 1.0
Torque Specification
7.41 ft-lbs (10 N·m)
Important Notes
Ensure proper contact between the sensor and the transmission case. Do not overtighten.
5

Output Shaft Retainer Bolts/Nuts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Verify specific application in the service manual.

Fluid Management

1

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Always use new sealing washers. Do not overtighten to prevent thread damage.

Driveline

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
61 ft-lbs (83 N·m)
Important Notes
Ensure proper alignment of the axle to the transmission output shaft. Verify bolt condition.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
184 ft-lbs (250 N·m)
Important Notes
Verify torque using proper procedure from the service manual. This nut is not directly part of the transmission, but is a part of the overall driveline system.
3

Torque Converter Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
These are often torque-to-yield bolts; always replace them when loosened. Torque in a star pattern.

Bellhousing

1

Bellhousing Bolts to Engine Block

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Verify specific vehicle and engine configuration in GM service information system. Estimated value.

Body

Torque specifications for Body

Fuel System

1

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent tank distortion.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper alignment of filler neck before tightening.

Body Panels

1

Fender Bolts

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

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper hood alignment before final tightening. May require adjustment.
3

Door Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten hinge bolts to specified torque to ensure proper door alignment and function. May require adjustments
4

Door Latch/Striker Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Adjust latch as needed for correct door closure before final tightening.

Bumper System

1

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper bumper alignment with the body before final torque application.

Lighting System

1

Headlight Assembly Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper headlight alignment before tightening. Do not overtighten.
2

Taillight Assembly Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper taillight alignment before tightening. Do not overtighten.

Grille And Mirrors

1

Grille Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Check for proper alignment and fit before final tightening.
2

Side Mirror Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper mirror position and function before final tightening.

Electrical System

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as it can damage terminals. Ensure proper contact is made.

Brakes

Torque specifications for Brakes

Brake Calipers

1

Caliper Mounting Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
These bolts secure the caliper to the mounting bracket. Torque evenly to ensure proper clamping.
2

Caliper Bleeder Screw

M10 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Torque to a low value to avoid damage to the hollow screw and ensure a proper seal.
3

Electronic Parking Brake Actuator Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensures the electronic parking brake actuator is firmly mounted to the caliper. Estimated value.

Caliper Brackets

1

Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
These bolts are critical for securing the bracket to the vehicle; use a calibrated torque wrench.

Brake Rotors

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
These bolts secure the rotor to the hub and should be torqued evenly; they may not be present on all vehicles, verify before install. Estimated value.
2

Brake Rotor Set Screw

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
If applicable, use this low torque value for the small set screw that may hold the rotor. Estimated value.

Wheel Components

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Torque lug nuts in a star pattern for even wheel mounting and to prevent rotor warping or vibrations.

Hydraulic Components

1

Brake Line Fittings

M10 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Use a flare nut wrench to avoid damaging the fitting. Over-tightening can cause leaks. Estimated value.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the master cylinder to the firewall or brake booster. Estimated value.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the booster to the firewall. Ensure proper torque for secure mounting. Estimated value.

Abs Components

1

ABS Module Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
These bolts secure the ABS module to the vehicle frame or body. Estimated value.

Drivetrain

Torque specifications for Drivetrain

Engine Interface

1

Flywheel Bolts

M10 x 1.25
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Apply thread locker to bolts. Ensure flywheel is properly seated on the crankshaft before torquing.
2

Torque Converter Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, verify for specific XTS model/transmission. Apply thread locker to bolts. Ensure torque converter is properly seated in the transmission before torquing.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure transmission is properly aligned with the engine before tightening. Some vehicles use a stepped torque method, verify the procedure.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
6.6 ft-lbs (9 N·m)
Important Notes
Use a new gasket when installing the transmission oil pan. Tighten in a cross pattern to ensure even sealing. 80 inch-lbs is equal to 6.6 ft-lbs.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a new sealing washer on plugs. Do not over tighten. Over tightening may damage the threads or the sealing surface

Driveshaft

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper alignment of driveshaft flanges. Torque bolts evenly. Use new bolts if specified.

Differential

1

Differential Mounting Bolts

M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Estimated value, verify for specific XTS model. Ensure differential is properly positioned and aligned before torquing. May require vehicle be supported and level.
2

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a new sealing washer on plugs. Do not over tighten. Over tightening may damage the threads or the sealing surface.

Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use a new sealing washer on plugs. Do not over tighten. Over tightening may damage the threads or the sealing surface.

Axles And Hubs

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
61 ft-lbs (83 N·m)
Important Notes
Apply thread locker to bolts. Inspect bolts for damage before installation. Some vehicles may use a torque to yield style bolt, and require new bolts.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
184 ft-lbs (250 N·m)
Important Notes
Ensure the axle nut is correctly engaging on the axle threads. Torque to spec is critical for proper hub bearing preload and functionality. If a cotter pin or other locking device is used, install after tightening.
3

Rear Wheel Hub/Bearing Mounting Bolts

M12 x 1.75
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated value, verify for specific XTS model. Torque bolts evenly. Ensure the hub is correctly mounted.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Ensure proper coil grounding and heat transfer. Improper torque can lead to misfires. Bolt is typically a hex head.

Starting System

1

Starter Motor Mounting Bolt

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Proper torque ensures correct starter alignment and engagement. Loose bolts can damage the starter and flywheel. Typically 2-3 bolts.

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 and alignment with the drive belt. Loose bolts can cause improper belt alignment and alternator failure due to vibration. Typically 2-3 bolts.

Battery System

1

Battery Terminal Nut

M8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Proper torque is critical for a good electrical connection. Over-tightening can damage the terminal. Undertightening can cause arcing and poor connection. Terminal nut or stud may use different sizing. M8 is an educated estimate.

Control Modules

1

Engine Control Module (ECM) Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensures proper grounding and secure mounting of the ECM. Located behind the passenger side kick panel. Bolt is typically a hex head. Multiple bolts may be used.
2

Transmission Control Module (TCM) Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensures proper grounding and secure mounting of the TCM. May be mounted to transmission housing or body. Bolt is typically a hex head. Multiple bolts may be used.
3

Body Control Module (BCM) Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensures proper grounding and secure mounting of the BCM. Bolt is typically a hex head. Multiple bolts may be used.

Grounding System

1

Ground Strap Mounting Bolt

M6 x 1.0
Torque Specification
8.8 ft-lbs (12 N·m)
Important Notes
Ground straps ensure proper electrical grounding. Proper torque is crucial for good conductivity. Locations vary throughout vehicle. Bolt is typically a hex head. Multiple ground straps may be used.

Lighting System

1

Headlight Assembly Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Secures headlight assembly to the vehicle body. Proper torque prevents vibration damage. Typically 2-3 bolts used.
2

Tail Light Assembly Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Secures tail light assembly to the vehicle body. Proper torque ensures alignment. Mounting bolts are typically installed from inside the trunk. Typically 2-3 bolts used.

Sensor System

1

Ambient Air Temperature Sensor Mounting Bolt

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Mounting bolt for the ambient air temperature sensor. Proper torque is necessary for secure mounting and good electrical ground. Mounting bolt is typically a hex head.
2

Camshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Secures the camshaft position sensor. Proper torque is critical for sensor alignment and grounding. Bolt is typically a hex head.
3

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Secures the crankshaft position sensor. Proper torque is critical for sensor alignment and grounding. Bolt is typically a hex head.
4

Mass Air Flow (MAF) Sensor Bolts

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Secures the Mass Air Flow (MAF) sensor. Proper torque ensures a tight seal and a good ground. Typically 2 bolts are used. Mounting bolts are typically hex heads.
5

Oxygen Sensor (O2) Bolts

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
O2 sensors are typically threaded into the exhaust manifold or exhaust pipes. Proper torque is essential to seal the O2 sensor and to ensure a good electrical ground. Actual bolt size may differ depending on the sensor type and vehicle model. This is an educated estimate.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust System

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper sealing to prevent exhaust leaks. Apply torque evenly.
2

Exhaust Manifold/Header Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure a gas-tight seal; improper torque can cause leaks.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque prevents exhaust leaks, crucial for sensor accuracy and catalytic converter performance.
4

Upstream Oxygen Sensor Mounting Nut

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure sensor is properly seated and the nut is tightened to the specified torque to avoid leaks and damage.
5

Downstream Oxygen Sensor Mounting Nut

M18 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure sensor is properly seated and the nut is tightened to the specified torque to avoid leaks and damage.
6

NOx Sensor Mounting Bolt/Stud

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper sensor seating and torque application to prevent leaks and ensure accurate readings. Estimated value based on similar exhaust sensor components.
7

DPF Pressure Sensor Mounting Bolt/Stud

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque is essential for accurate sensor readings and preventing leaks. Estimated value based on similar exhaust system components. (Diesel Vehicles Only)
8

SCR System Bolts/Studs

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure all SCR components are securely mounted with the correct torque values. Estimated value based on similar exhaust component fasteners. (Diesel Vehicles Only)

Egr System

1

EGR Valve Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque prevents vacuum leaks which can lead to poor engine performance. Use a crisscross pattern.

Intake System

1

Mass Airflow Sensor (MAF) Mounting Bolts

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Do not over-tighten to avoid damage to the sensor housing. Use a light torque with a calibrated torque wrench.

Evaporative Emissions System

1

Fuel Tank Pressure Sensor Mounting Bolts/Studs

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Proper torque is critical for preventing fuel vapor leaks. Estimated value based on similar sensors.
2

EVAP Canister Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure the canister is securely mounted to prevent vibrations and damage. Estimated value based on similar mounting hardware.
3

EVAP Purge Valve Mounting Bolt

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure a secure connection for proper EVAP system function. Estimated value based on similar intake component bolts.
4

Charcoal Canister Mounting Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure a secure mount for the charcoal canister to prevent vibrations. Use a crisscross pattern.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure even tightening to prevent leaks. Always use new gaskets.
2

Exhaust Manifold/Header Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
These bolts connect the exhaust manifold to the cylinder head. Ensure proper torque sequence is followed to prevent leaks. Apply anti-seize to threads for easier removal.
3

Exhaust Pipe to Exhaust Manifold/Header Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
These bolts connect the exhaust pipe to the exhaust manifold. Use new gasket and apply anti-seize. Tighten to spec in a criss-cross pattern.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure a proper seal, replace gasket, and apply anti-seize. Do not over-tighten.

Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Use new gaskets and ensure bolts are torqued to prevent leaks and rattles. Apply anti-seize.

Flange Connections

1

Exhaust Flange Bolts/Nuts

M10 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Torque depends on bolt size. Estimated value for M10 bolts. Use new gaskets. Always verify.

Oxygen Sensor

1

Oxygen Sensor

M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Torque can vary based on sensor type and manufacturer. Do not use anti-seize on threads of sensor. Estimated value. Always verify.

Exhaust Hangers

1

Exhaust Hanger/Bracket Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque can vary depending on design, material, and bolt size. Estimated Value. Verify specs.

Fuel

Torque specifications for Fuel

Fuel Rail

1

Fuel Rail Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure bolts are tightened evenly. Do not overtighten.
2

Fuel Injector Mounting Bolts/Screws

M5 x 0.8
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure injector O-rings are properly seated. Do not overtighten.
3

Fuel Line Banjo Bolt to Fuel Rail

M12 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Always use new crush washers. This is an estimated value, confirm with service manual.

Fuel Pump

1

Fuel Pump Module Mounting Bolts

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

Fuel Tank Sending Unit Lock Ring

Lock Ring
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Use a specialized lock ring tool for tightening. This is an estimated value, confirm with service manual.
3

Fuel Filler Neck Mounting Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Check for proper alignment of the filler neck to the fuel tank. Do not overtighten.

Fuel Filter

1

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the filter is properly seated in its bracket before tightening.

High Pressure Fuel Pump

1

High Pressure Fuel Pump Mounting Bolts/Studs

M8 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Typically a stretch bolt application. This is an estimated value, confirm with service manual. Final torque includes an angle turn. Always use new bolts.

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. Torque evenly to prevent misalignment.

Ac Lines

1

A/C Line Fittings

N/A
Torque Specification
N/A
Important Notes
Hand-tighten until snug. Over-tightening will damage O-rings and gaskets. Always check for leaks after tightening. Note: torque value is 'hand tight' which is generally considered no specific torque value.

Ac Condenser

1

A/C Condenser Mounting Bolts (Small)

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
These are the smaller bolts used to secure the condenser. Use a lower torque setting to prevent damage.
2

A/C Condenser Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
These are used to secure the condenser bracket to the vehicle. Estimated torque, verify with service manual.

Ac Evaporator

1

A/C Evaporator Core Housing Bolts

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Bolts often secure plastic housings; verify with service manual, estimated value.
2

A/C Evaporator Core Housing Bolts (Alternate)

M6 x 1.0
Torque Specification
6.6 ft-lbs (9 N·m)
Important Notes
Bolts often secure plastic housings; verify with service manual, estimated value.

Ac Expansion Valve

1

A/C Expansion Valve Mounting Bolts

M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure bolts are clean and threads are in good condition. Torque evenly to prevent misalignment.

Hvac Blower Motor

1

HVAC Blower Motor Mounting Screws

M5 x 0.8
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Typically low torque due to self-tapping screws into plastic. Estimated value; verify with service manual.
2

HVAC Blower Motor Mounting Screws (Alternate)

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Typically low torque due to self-tapping screws into plastic. Estimated value; verify with service manual.

Hvac Control Module

1

HVAC Control Module Mounting Screws

M4 x 0.7
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Screws mount directly into a plastic housing; verify with service manual, estimated value.
2

HVAC Control Module Mounting Screws (Alternate)

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Screws mount directly into a plastic housing; verify with service manual, estimated value.

Hvac Temperature Actuator

1

Temperature Actuator Mounting Screws

M4 x 0.7
Torque Specification
4.4 ft-lbs (6 N·m)
Important Notes
Actuators are often mounted to plastic housings, verify with service manual, estimated value.
2

Temperature Actuator Mounting Screws (Alternate)

M5 x 0.8
Torque Specification
5.2 ft-lbs (7 N·m)
Important Notes
Actuators are often mounted to plastic housings, verify with service manual, estimated value.

Suspension

Torque specifications for Suspension

Front Suspension

1

Front Strut Upper Mounting Bolts

M12 x 1.75
Torque Specification
133 ft-lbs (180 N·m)
Important Notes
Secures the top of the strut assembly to the vehicle's frame or body. Ensure bolts are tightened evenly.
2

Front Strut-to-Knuckle Bolts

M14 x 1.5
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
Fastens the lower strut mount to the steering knuckle. Critical for suspension integrity.
3

Lower Control Arm to Frame Bolts

M14 x 2.0
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
Secures the control arm to the vehicle's subframe. Essential for maintaining proper alignment.
4

Lower Control Arm Ball Joint Nut

M12 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Fastens the ball joint stud to the steering knuckle or control arm. Do not overtighten.
5

Tie Rod End Nut

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures the tie rod end to the steering knuckle. Critical for steering alignment. Do not overtighten.
6

Sway Bar Link Nut

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Connects the sway bar to the strut or control arm. Do not overtighten.
7

Sway Bar Bushing Bracket Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the sway bar bushings to the frame or subframe. Tighten evenly to avoid binding.

Rear Suspension

1

Rear Shock Absorber Upper Mounting Bolts

M12 x 1.75
Torque Specification
133 ft-lbs (180 N·m)
Important Notes
Secures the top of the shock absorber to the vehicle's frame or body. Ensure bolts are tightened evenly.
2

Rear Shock Absorber Lower Bolt

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Fastens the lower shock mount to the control arm or suspension knuckle. Critical for suspension integrity.
3

Rear Upper Control Arm to Frame Bolts

M12 x 1.75
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
Secures the control arm to the vehicle's subframe or frame. Essential for maintaining proper alignment.
4

Rear Lower Control Arm to Frame Bolts

M14 x 2.0
Torque Specification
129 ft-lbs (175 N·m)
Important Notes
Secures the lower control arm to the vehicle's subframe or frame. Essential for maintaining proper alignment.
5

Rear Sway Bar Link Nut

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Connects the sway bar to the strut or control arm. Do not overtighten.
6

Rear Sway Bar Bushing Bracket Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the sway bar bushings to the frame or subframe. Tighten evenly to avoid binding.

Steering System

1

Steering Knuckle Bolts (Multiple Locations)

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
This torque value is for typical bolts connecting the knuckle to suspension components. Different locations may require different torque specifications. This is an estimated value.
2

Tie Rod to Steering Rack Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
This is an estimated value. Critical for proper steering response. Always replace these bolts if they have been removed.

Wheel Hub And Bearing

1

Hub and Bearing Assembly Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Secures the hub and bearing assembly to the steering knuckle. This is an estimated value.

Subframe

1

Subframe Mounting Bolts (Large)

M14 x 2.0
Torque Specification
111 ft-lbs (150 N·m)
Important Notes
For larger bolts connecting the subframe to the chassis. Tighten in a crisscross pattern.
2

Subframe Mounting Bolts (Smaller)

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
For smaller bolts connecting the subframe to the chassis or body. Tighten evenly.

Abs System

1

Wheel Speed Sensor Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the wheel speed sensors to the steering knuckle or hub. Do not overtighten.

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 engine block torque specification for the 2013-2019 Cadillac xts?

The engine block torque specification IS 115 ft-lbs (156 Nm).

Q2

What IS the recommended torque range for the cylinder head bolts on a 2016 xts?

The torque range for the cylinder head bolts on a 2016 xts IS 89-93 ft-lbs (120-126 Nm).

Q3

What type of torque wrench IS best suited for tightening wheel bolts on a 2013 xts?

A click-type torque wrench with a range of 20-150 ft-lbs (27-203 Nm) IS recommended for tightening wheel bolts.

Q4

What IS the torque specification for the rear axle differential cover bolts?

The torque specification for the rear axle differential cover bolts IS 15 ft-lbs (20 Nm).

Q5

IS it necessary to use a torque wrench for every bolt on the xts?

It IS not necessary to use a torque wrench for every bolt, but it IS highly recommended for critical bolts, such as cylinder head bolts, suspension bolts, and brake caliper bolts.

Q6

What are some common mistakes to avoid when applying torque?

Common mistakes include over-tightening, under-tightening, using the wrong torque value, and not following the proper tightening sequence.

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 xts.

  • 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

Wheel Lug Torque Procedure

Ensuring proper tightening of wheel lugs to prevent wheel detachment.

  • Use a digital torque wrench to tighten lug nuts to 110 Nm (81 ft-lb).
  • Tighten lug nuts in a star pattern.
  • Recheck torque at the next opportunity.
View full procedure

Engine Cylinder Head Bolt Torque Procedure

Critical procedure to ensure proper sealing and prevent engine damage.

  • Lubricate cylinder head bolts with specified lubricant.
  • Tighten bolts to 25 Nm (18 ft-lb) in sequence.
  • Re-tighten bolts to 100 Nm (74 ft-lb) in sequence.
  • Finally, tighten bolts to 120 degrees. Do not exceed this angle!
View full procedure

Intake Manifold to Cylinder Head Torque Procedure

Procedure to ensure proper sealing of the intake manifold.

  • Apply sealant to the intake manifold gasket.
  • Tighten intake manifold bolts to 10 Nm (7 ft-lb).
  • Re-tighten bolts to 20 Nm (15 ft-lb) in sequence starting from the center and working outward.
View full procedure
Technical Service Bulletins

TSB: Loose Cylinder Head Bolts

2015-03-10

Technical Service Bulletin addressing concerns of loose cylinder head bolts on 3.6L V6 engines.

2013-2019 xts with 3.6L V6 engine

Resolution: Inspect and tighten cylinder head bolts to specified torque of 120 degrees.

TSB: Revised Torque Specifications for Wheel Lug Nuts

2017-07-25

Updated torque specifications for wheel lug nuts to ensure proper tightening.

All 2013-2019 xts models

Resolution: Tighten wheel lug nuts to 130 Nm (96 ft-lb).

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