Cadillac Vehicle Models STS 2005-2011 Torque Specifications
Complete Cadillac Vehicle Models STS 2005-2011 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.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
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.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
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.
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.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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Search by component name, bolt size, or description
Torque Calculator
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3.6l Engine
Torque specifications for 3.6L Engine
3.6l Engine
Torque specifications for 3.6L Engine
Cylinder Head
1 Cylinder Head Bolts
M11 x 1.5
Cylinder Head Bolts
M11 x 1.5Engine Block
1 Main Bearing Bolts
M10 x 1.5
Main Bearing Bolts
M10 x 1.5 2 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 3 Oil Filter Housing Bolt
M8 x 1.25
Oil Filter Housing Bolt
M8 x 1.25 4 Oil Drain Plug
M14 x 1.5
Oil Drain Plug
M14 x 1.5 5 Water Pump Bolts
M8 x 1.25
Water Pump Bolts
M8 x 1.25 6 Engine Coolant Temperature Sensor
M12 x 1.5
Engine Coolant Temperature Sensor
M12 x 1.5 7 Knock Sensor
M8 x 1.25
Knock Sensor
M8 x 1.25 8 Valve Lifter Guide Bolts
M6 x 1.0
Valve Lifter Guide Bolts
M6 x 1.0Rotating Assembly
1 Connecting Rod Nuts
M9 x 1.25
Connecting Rod Nuts
M9 x 1.25 2 Flywheel Bolts
M12 x 1.25
Flywheel Bolts
M12 x 1.25 3 Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5Valvetrain
1 Camshaft Sprocket Bolt
M10 x 1.25
Camshaft Sprocket Bolt
M10 x 1.25 2 Camshaft Bearing Cap Bolts/Nuts
M6 x 1.0
Camshaft Bearing Cap Bolts/Nuts
M6 x 1.0 3 Rocker Arm Shaft Bolts
M8 x 1.25
Rocker Arm Shaft Bolts
M8 x 1.25 4 Variable Valve Timing Actuator Solenoid
M6 x 1.0
Variable Valve Timing Actuator Solenoid
M6 x 1.0Timing System
1 Timing Chain Tensioner Bolt
M8 x 1.25
Timing Chain Tensioner Bolt
M8 x 1.25Intake And Exhaust
1 Intake Manifold Bolts
M6 x 1.0
Intake Manifold Bolts
M6 x 1.0 2 Exhaust Manifold/Header Bolts
M8 x 1.25
Exhaust Manifold/Header Bolts
M8 x 1.25 3 EGR Valve Bolts
M8 x 1.25
EGR Valve Bolts
M8 x 1.25 4 Throttle Body Bolts
M6 x 1.0
Throttle Body Bolts
M6 x 1.0Fuel System
1 Fuel Rail Bolts
M6 x 1.0
Fuel Rail Bolts
M6 x 1.0 2 Fuel Injector Bolts
M6 x 1.0
Fuel Injector Bolts
M6 x 1.0Ignition System
1 Ignition Coil Bolt
M6 x 1.0
Ignition Coil Bolt
M6 x 1.0 2 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25Cooling System
1 Water Pump Pulley Bolts
M6 x 1.0
Water Pump Pulley Bolts
M6 x 1.0 2 Thermostat Housing Bolts
M8 x 1.25
Thermostat Housing Bolts
M8 x 1.25Sensors
1 Crankshaft Position Sensor
M6 x 1.0
Crankshaft Position Sensor
M6 x 1.0 2 Camshaft Position Sensor
M6 x 1.0
Camshaft Position Sensor
M6 x 1.0 4.4l Engine
Torque specifications for 4.4L Engine
4.4l Engine
Torque specifications for 4.4L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Cylinder Head to Engine Block Studs
M12 x 1.5
Cylinder Head to Engine Block Studs
M12 x 1.5Main Bearings and Crankshaft
1 Main Bearing Bolts
M14 x 2
Main Bearing Bolts
M14 x 2 2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2Valvetrain and Intake Manifold
1 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 2 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5Timing System and Accessory Belt Drive
1 Timing Belt/Chain Tensioner Bolt
M14 x 2
Timing Belt/Chain Tensioner Bolt
M14 x 2 2 Camshaft Sprocket Bolt
M16 x 2
Camshaft Sprocket Bolt
M16 x 2Oil System and Pump
1 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5 2 Engine Block to Oil Pump Mounting Bolts
M12 x 1.5
Engine Block to Oil Pump Mounting Bolts
M12 x 1.5Throttle Body and Fuel System
1 Throttle Body Bolts
M8 x 1.25
Throttle Body Bolts
M8 x 1.25 2 Fuel Rail Bolts
M10 x 1.5
Fuel Rail Bolts
M10 x 1.5 4.6l Engine
Torque specifications for 4.6L Engine
4.6l Engine
Torque specifications for 4.6L Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.75
Cylinder Head Bolts
M12 x 1.75 2 Valve Cover Bolts
M6 x 1.0
Valve Cover Bolts
M6 x 1.0 3 Valve Cover Gasket Retainer Bolts
M6 x 1.0
Valve Cover Gasket Retainer Bolts
M6 x 1.0 4 Exhaust Manifold/Headers Bolts
M8 x 1.25
Exhaust Manifold/Headers Bolts
M8 x 1.25 5 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25 6 Rocker Arm Shaft Bolts
M8 x 1.25
Rocker Arm Shaft Bolts
M8 x 1.25 7 Ignition Coil Bolts
M6 x 1.0
Ignition Coil Bolts
M6 x 1.0 8 Coolant Temperature Sensor Bolt
M6 x 1.0
Coolant Temperature Sensor Bolt
M6 x 1.0 9 EGR Valve Bolts
M8 x 1.25
EGR Valve Bolts
M8 x 1.25Engine Block
1 Main Bearing Bolts
M12 x 1.75
Main Bearing Bolts
M12 x 1.75 2 Connecting Rod Nuts
M9 x 1.25
Connecting Rod Nuts
M9 x 1.25 3 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 4 Oil Pump Mounting Bolts
M8 x 1.25
Oil Pump Mounting Bolts
M8 x 1.25 5 Knock Sensor Bolt
M8 x 1.25
Knock Sensor Bolt
M8 x 1.25 6 Oil Drain Plug Bolt
M14 x 1.5
Oil Drain Plug Bolt
M14 x 1.5Rotating Assembly
1 Flywheel Bolts
M10 x 1.5
Flywheel Bolts
M10 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5 3 Camshaft Sprocket Bolts
M10 x 1.5
Camshaft Sprocket Bolts
M10 x 1.5Timing System
1 Timing Chain Tensioner Bolt
M8 x 1.25
Timing Chain Tensioner Bolt
M8 x 1.25Intake System
1 Intake Manifold Bolts
M6 x 1.0
Intake Manifold Bolts
M6 x 1.0 2 Throttle Body Bolts
M6 x 1.0
Throttle Body Bolts
M6 x 1.0 3 Fuel Rail Bolts
M6 x 1.0
Fuel Rail Bolts
M6 x 1.0 4 Fuel Injector Bolts
M6 x 1.0
Fuel Injector Bolts
M6 x 1.0 5 Camshaft Position Sensor Bolt
M6 x 1.0
Camshaft Position Sensor Bolt
M6 x 1.0 6 Crankshaft Position Sensor Bolt
M6 x 1.0
Crankshaft Position Sensor Bolt
M6 x 1.0Cooling System
1 Water Pump Bolts
M8 x 1.25
Water Pump Bolts
M8 x 1.25 2 Water Pump Pulley Bolts
M6 x 1.0
Water Pump Pulley Bolts
M6 x 1.0 3 Thermostat Housing Bolts
M8 x 1.25
Thermostat Housing Bolts
M8 x 1.25Accessory Drive
1 Serpentine/Accessory Drive Belt Tensioner Bolt
M10 x 1.5
Serpentine/Accessory Drive Belt Tensioner Bolt
M10 x 1.5 2 Drive Belt Idler Pulley Bolt
M10 x 1.5
Drive Belt Idler Pulley Bolt
M10 x 1.5Other
1 Fuel Filter Bolt/Nut
M6 x 1.0
Fuel Filter Bolt/Nut
M6 x 1.0 6l50 Transmission
Torque specifications for 6l50 Transmission
6l50 Transmission
Torque specifications for 6l50 Transmission
Transmission Mounting
1 Transmission-to-Engine Mounting Bolts
M12 x 1.75
Transmission-to-Engine Mounting Bolts
M12 x 1.75 2 Transmission-to-Crossmember Mounting Bolts
M10 x 1.5
Transmission-to-Crossmember Mounting Bolts
M10 x 1.5Transmission Case
1 Transmission Case Bolts (Internal)
M8 x 1.25
Transmission Case Bolts (Internal)
M8 x 1.25 2 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0 3 Transmission Drain Plug
M18 x 1.5
Transmission Drain Plug
M18 x 1.5 4 Transmission Fill Plug
M18 x 1.5
Transmission Fill Plug
M18 x 1.5Valve Body
1 Valve Body Mounting Bolts
M6 x 1.0
Valve Body Mounting Bolts
M6 x 1.0Solenoids
1 Transmission Solenoid Mounting Bolts
M5 x 0.8
Transmission Solenoid Mounting Bolts
M5 x 0.8Driveline
1 Drive Axle/Half Shaft Bolts
M10 x 1.5
Drive Axle/Half Shaft Bolts
M10 x 1.5 2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5 3 Propeller/Drive Shaft Bolts
M10 x 1.5
Propeller/Drive Shaft Bolts
M10 x 1.5Bellhousing
1 Transmission Bellhousing Bolts
M12 x 1.75
Transmission Bellhousing Bolts
M12 x 1.75 Body
Torque specifications for Body
Body
Torque specifications for Body
Wheel Mounting
1 Wheel Lug Nuts
M14 x 1.5
Wheel Lug Nuts
M14 x 1.5Fuel System
1 Fuel Tank Strap Bolts
M8 x 1.25
Fuel Tank Strap Bolts
M8 x 1.25 2 Fuel Filler Neck Bolts
M6 x 1
Fuel Filler Neck Bolts
M6 x 1Body Panels
1 Hood Hinge Bolts
M8 x 1.25
Hood Hinge Bolts
M8 x 1.25 2 Fender Bolts
M6 x 1
Fender Bolts
M6 x 1 3 Door Hinge Bolts
M8 x 1.25
Door Hinge Bolts
M8 x 1.25 4 Door Latch/Striker Bolts
M8 x 1.25
Door Latch/Striker Bolts
M8 x 1.25Bumper Mounting
1 Bumper Mounting Bolts
M8 x 1.25
Bumper Mounting Bolts
M8 x 1.25Interior Components
1 Seat Mounting Bolts
M10 x 1.5
Seat Mounting Bolts
M10 x 1.5 2 Interior Trim Panel Screws/Bolts
M5 x 0.8
Interior Trim Panel Screws/Bolts
M5 x 0.8Grille Mounting
1 Grille Mounting Bolts/Screws
M5 x 0.8
Grille Mounting Bolts/Screws
M5 x 0.8 Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Caliper
1 Caliper Mounting Bolts
M14 x 1.5
Caliper Mounting Bolts
M14 x 1.5 2 Caliper Bleeder Screw
M10 x 1.0
Caliper Bleeder Screw
M10 x 1.0 3 Brake Hose Banjo Bolt
M10 x 1.0
Brake Hose Banjo Bolt
M10 x 1.0 4 Brake Pad Retaining Pin Bolt
M8 x 1.25
Brake Pad Retaining Pin Bolt
M8 x 1.25Caliper Bracket
1 Caliper Mounting Bracket Bolts
M16 x 1.5
Caliper Mounting Bracket Bolts
M16 x 1.5Rotor
1 Rotor Retaining Bolts
M8 x 1.25
Rotor Retaining Bolts
M8 x 1.25Wheel
1 Wheel Lug Nuts
M14 x 1.5
Wheel Lug Nuts
M14 x 1.5Abs
1 Wheel Speed Sensor Mounting Bolt
M6 x 1.0
Wheel Speed Sensor Mounting Bolt
M6 x 1.0Master Cylinder
1 Master Cylinder Mounting Bolts
M8 x 1.25
Master Cylinder Mounting Bolts
M8 x 1.25 Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine To Transmission
1 Flywheel/Flexplate Bolts
M11 x 1.25
Flywheel/Flexplate Bolts
M11 x 1.25 2 Torque Converter Bolts to Flexplate
M10 x 1.5
Torque Converter Bolts to Flexplate
M10 x 1.5 3 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Transmission
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0 2 Transmission Drain Plug
M18 x 1.5
Transmission Drain Plug
M18 x 1.5 3 Transmission Fill Plug
M18 x 1.5
Transmission Fill Plug
M18 x 1.5 4 Transmission Cooler Line Fittings (Aluminum)
M14 x 1.5
Transmission Cooler Line Fittings (Aluminum)
M14 x 1.5 5 Transmission Cooler Line Fittings (Steel)
M14 x 1.5
Transmission Cooler Line Fittings (Steel)
M14 x 1.5Driveshaft And Axles
1 Propeller/Drive Shaft Bolts
M10 x 1.5
Propeller/Drive Shaft Bolts
M10 x 1.5 2 Drive Axle/Half Shaft Bolts
M10 x 1.25
Drive Axle/Half Shaft Bolts
M10 x 1.25 3 CV Joint/Axle Nut
M24 x 2.0
CV Joint/Axle Nut
M24 x 2.0Differential
1 Differential Drain Plug
M18 x 1.5
Differential Drain Plug
M18 x 1.5 2 Differential Fill Plug
M18 x 1.5
Differential Fill Plug
M18 x 1.5 3 Differential Cover Bolts
M10 x 1.5
Differential Cover Bolts
M10 x 1.5 4 Rear Axle Shaft Flange Bolts to Differential Carrier
M10 x 1.25
Rear Axle Shaft Flange Bolts to Differential Carrier
M10 x 1.25Transfer Case
1 Transfer Case Drain Plug
M18 x 1.5
Transfer Case Drain Plug
M18 x 1.5 2 Transfer Case Fill Plug
M18 x 1.5
Transfer Case Fill Plug
M18 x 1.5 Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Ignition System
1 Spark Plug
M14 x 1.25
Spark Plug
M14 x 1.25 2 Ignition Coil Mounting Bolt
M6 x 1.0
Ignition Coil Mounting Bolt
M6 x 1.0Battery System
1 Battery Terminal Nut
M8 x 1.25
Battery Terminal Nut
M8 x 1.25 2 Starter Motor Mounting Bolt
M10 x 1.5
Starter Motor Mounting Bolt
M10 x 1.5Charging System
1 Alternator Mounting Bolt
M10 x 1.5
Alternator Mounting Bolt
M10 x 1.5Control Modules
1 Engine Control Module (ECM) Mounting Bolt
M6 x 1.0
Engine Control Module (ECM) Mounting Bolt
M6 x 1.0 2 Body Control Module (BCM) Mounting Bolt
M6 x 1.0
Body Control Module (BCM) Mounting Bolt
M6 x 1.0Grounding System
1 Engine Block Ground Strap Bolt
M8 x 1.25
Engine Block Ground Strap Bolt
M8 x 1.25 2 Chassis/Body Ground Strap Bolt
M8 x 1.25
Chassis/Body Ground Strap Bolt
M8 x 1.25Power Distribution
1 Fuse Box Mounting Bolt
M6 x 1.0
Fuse Box Mounting Bolt
M6 x 1.0Wiring Harness
1 Wiring Harness Connector Bolt
M4 x 0.7
Wiring Harness Connector Bolt
M4 x 0.7 2 Wiring Harness Connector Bolt (Larger)
M5 x 0.8
Wiring Harness Connector Bolt (Larger)
M5 x 0.8 Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Exhaust System
1 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.5
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M8 x 1.25
Exhaust Manifold/Headers Bolts
M8 x 1.25 3 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5 4 Oxygen (O2) Sensor (18mm Thread)
M18 x 1.5
Oxygen (O2) Sensor (18mm Thread)
M18 x 1.5 5 Oxygen (O2) Sensor (12mm or 14mm Thread)
M12 x 1.25 or M14 x 1.5
Oxygen (O2) Sensor (12mm or 14mm Thread)
M12 x 1.25 or M14 x 1.5Egr System
1 EGR Valve Bolts
M8 x 1.25
EGR Valve Bolts
M8 x 1.25Air Injection System
1 Air Injection Reaction (AIR) Check Valve Mounting Bolts
M8 x 1.25
Air Injection Reaction (AIR) Check Valve Mounting Bolts
M8 x 1.25Intake System
1 Mass Airflow (MAF) Sensor Mounting Bolts
M5 x 0.8
Mass Airflow (MAF) Sensor Mounting Bolts
M5 x 0.8Evap System
1 Fuel Tank Pressure Sensor Bolts
M5 x 0.8
Fuel Tank Pressure Sensor Bolts
M5 x 0.8 2 Evaporative Emission (EVAP) Canister Mounting Bolts/Straps
M8 x 1.25
Evaporative Emission (EVAP) Canister Mounting Bolts/Straps
M8 x 1.25 3 EVAP Purge Valve Mounting Bolts
M5 x 0.8
EVAP Purge Valve Mounting Bolts
M5 x 0.8 Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold
1 Exhaust Manifold/Header to Cylinder Head Bolts
M10 x 1.25
Exhaust Manifold/Header to Cylinder Head Bolts
M10 x 1.25Exhaust Pipe Connections
1 Exhaust Pipe to Exhaust Manifold/Header Bolts
M10 x 1.5
Exhaust Pipe to Exhaust Manifold/Header Bolts
M10 x 1.5 2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5 3 Muffler to Exhaust Pipe Bolts
M10 x 1.5
Muffler to Exhaust Pipe Bolts
M10 x 1.5 4 General Exhaust Flange Bolts/Nuts
M8 x 1.25
General Exhaust Flange Bolts/Nuts
M8 x 1.25 5 General Exhaust Flange Bolts/Nuts (larger)
M10 x 1.5
General Exhaust Flange Bolts/Nuts (larger)
M10 x 1.5Oxygen Sensors
1 Oxygen Sensor
M18 x 1.5
Oxygen Sensor
M18 x 1.5Exhaust Hangers
1 Exhaust Hanger/Bracket Bolts
M8 x 1.25
Exhaust Hanger/Bracket Bolts
M8 x 1.25 Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail
1 Fuel Rail Mounting Bolts
M6 x 1.0
Fuel Rail Mounting Bolts
M6 x 1.0 2 Fuel Injector Retaining Bolts/Clips
M6 x 1.0
Fuel Injector Retaining Bolts/Clips
M6 x 1.0 3 Fuel Pressure Regulator Mounting Bolts
M6 x 1.0
Fuel Pressure Regulator Mounting Bolts
M6 x 1.0 4 Fuel Pressure Sensor Mounting Bolts
M5 x 0.8
Fuel Pressure Sensor Mounting Bolts
M5 x 0.8Fuel Pump
1 Fuel Pump Mounting Bolts
M6 x 1.0
Fuel Pump Mounting Bolts
M6 x 1.0 2 Fuel Tank Sending Unit Retaining Ring/Bolts
M5 x 0.8
Fuel Tank Sending Unit Retaining Ring/Bolts
M5 x 0.8Fuel Filter
1 Fuel Filter Mounting Bolt/Nut
M8 x 1.25
Fuel Filter Mounting Bolt/Nut
M8 x 1.25Fuel Filler
1 Fuel Filler Neck Mounting Bolts
M6 x 1.0
Fuel Filler Neck Mounting Bolts
M6 x 1.0High Pressure Fuel System
1 High Pressure Fuel Pump Mounting Bolts
M8 x 1.25
High Pressure Fuel Pump Mounting Bolts
M8 x 1.25 2 High Pressure Fuel Line Connection/Fitting Nut/Bolt
Varies by application, typical M12 x 1.5
High Pressure Fuel Line Connection/Fitting Nut/Bolt
Varies by application, typical M12 x 1.5Fuel Lines
1 Fuel Line Connection/Fitting Nut/Bolt (general)
Varies by application, typical M10 x 1.25 or M12 x 1.5
Fuel Line Connection/Fitting Nut/Bolt (general)
Varies by application, typical M10 x 1.25 or M12 x 1.5 Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Compressor System
1 A/C Compressor Mounting Bolts
M10 x 1.5
A/C Compressor Mounting Bolts
M10 x 1.5 2 A/C Line Fittings
Varies, M10 x 1.25 to M16 x 1.5
A/C Line Fittings
Varies, M10 x 1.25 to M16 x 1.5Condenser System
1 A/C Condenser Mounting Bolts/Nuts (Small)
M8 x 1.25
A/C Condenser Mounting Bolts/Nuts (Small)
M8 x 1.25 2 A/C Condenser Mounting Bolts/Nuts (Large)
M10 x 1.5
A/C Condenser Mounting Bolts/Nuts (Large)
M10 x 1.5Evaporator System
1 A/C Evaporator Housing Bolts/Screws
M6 x 1
A/C Evaporator Housing Bolts/Screws
M6 x 1Blower Motor System
1 HVAC Blower Motor Mounting Bolts/Screws
M6 x 1
HVAC Blower Motor Mounting Bolts/Screws
M6 x 1Actuator System
1 Blend Door Actuator Mounting Screws
M5 x 0.8
Blend Door Actuator Mounting Screws
M5 x 0.8 Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.75
Strut/Shock Absorber Mounting Bolts
M12 x 1.75 2 Strut-to-Knuckle Bolts
M14 x 1.5
Strut-to-Knuckle Bolts
M14 x 1.5 3 Control Arm Mounting Bolts
M14 x 2.0
Control Arm Mounting Bolts
M14 x 2.0 4 Ball Joint Nut
M16 x 1.5
Ball Joint Nut
M16 x 1.5 5 Tie Rod End Nut
M14 x 1.5
Tie Rod End Nut
M14 x 1.5 6 Sway Bar Link Nut
M10 x 1.25
Sway Bar Link Nut
M10 x 1.25Rear Suspension
1 Upper Control Arm Mount Bolts
M12 x 1.75
Upper Control Arm Mount Bolts
M12 x 1.75 2 Sway Bar Mounting Bracket Bolts
M10 x 1.5
Sway Bar Mounting Bracket Bolts
M10 x 1.5Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
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
Diagnostic Steps
Visual inspection, torque verification, thread assessment
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
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
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
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 torque specification for the lug nuts on a 2005-2011 Cadillac STS?
What IS the torque specification for the lug nuts on a 2005-2011 Cadillac STS?
The torque specification for the lug nuts on a 2005-2011 Cadillac STS IS 100 ft-lbs.
Q2 What IS the torque specification for the spark plugs on a 2005-2011 Cadillac STS?
What IS the torque specification for the spark plugs on a 2005-2011 Cadillac STS?
The torque specification for the spark plugs on a 2005-2011 Cadillac STS IS 20 ft-lbs.
Q3 What IS the torque specification for the oil filter on a 2005-2011 Cadillac STS?
What IS the torque specification for the oil filter on a 2005-2011 Cadillac STS?
The torque specification for the oil filter on a 2005-2011 Cadillac STS IS 20 ft-lbs.
Q4 What IS the torque specification for the fuel filter on a 2005-2011 Cadillac STS?
What IS the torque specification for the fuel filter on a 2005-2011 Cadillac STS?
The torque specification for the fuel filter on a 2005-2011 Cadillac STS IS 25 ft-lbs.
Q5 What IS the torque specification for the brake pads on a 2005-2011 Cadillac STS?
What IS the torque specification for the brake pads on a 2005-2011 Cadillac STS?
The torque specification for the brake pads on a 2005-2011 Cadillac STS IS 100 ft-lbs.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
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
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
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 STS.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Engine Component Torque Specifications
Technical procedure overview for tightening engine components to specified torque values.
- Locate the engine component that requires tightening.
- Refer to the torque specifications chart for the specific component.
- Set the digital torque wrench to the desired torque value.
- Tighten the fastener using the torque wrench until the audible alarm sounds.
- Ensure that the fastener IS tightened to the correct torque specification.
Suspension and Steering Component Torque Specifications
Technical procedure overview for tightening suspension and steering components to specified torque values.
- Locate the suspension or steering component that requires tightening.
- Refer to the torque specifications chart for the specific component.
- Set the digital torque wrench to the desired torque value.
- Tighten the fastener using the torque wrench until the audible alarm sounds.
- Ensure that the fastener IS tightened to the correct torque specification.
Body and Exterior Component Torque Specifications
Technical procedure overview for tightening body and exterior components to specified torque values.
- Locate the body or exterior component that requires tightening.
- Refer to the torque specifications chart for the specific component.
- Set the digital torque wrench to the desired torque value.
- Tighten the fastener using the torque wrench until the audible alarm sounds.
- Ensure that the fastener IS tightened to the correct torque specification.
Technical Service Bulletins
Revised Engine Component Torque Specifications
2009-04-01Updated torque specifications for certain engine components.
Resolution: Refer to the updated torque specifications chart provided in the bulletin.
Suspension Component Torque Specifications Correction
2010-06-15Correction to the torque specifications for specific suspension components.
Resolution: Refer to the corrected torque specifications chart provided in the bulletin.
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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.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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