Lexus Vehicle Models GS 2005-2011 Torque Specifications
Complete Lexus Vehicle Models GS 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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Torque Calculator
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3.0l Engine
Torque specifications for 3.0L Engine
3.0l Engine
Torque specifications for 3.0L Engine
Cylinder Head and Valve Train
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 3 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
Main Bearing Bolts
M14 x 2.0 2 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0Camshaft and Timing System
1 Camshaft Sprocket Bolt
M12 x 1.5
Camshaft Sprocket Bolt
M12 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Engine Accessories
1 Oil Pump Bolts
M10 x 1.5
Oil Pump Bolts
M10 x 1.5 2 Water Pump Bolts
M8 x 1.25
Water Pump Bolts
M8 x 1.25 3 Thermostat Housing Bolts
M8 x 1.25
Thermostat Housing Bolts
M8 x 1.25Engine Mounts and Transmission
1 Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
Engine Block to Transmission Bellhousing Bolts
M14 x 2.0 2 Engine Mounting Bolts
M12 x 1.5
Engine Mounting Bolts
M12 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Ignition and Fuel System
1 Ignition Coil Bolt
M8 x 1.25
Ignition Coil Bolt
M8 x 1.25 2 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
Cylinder Head and Valve Train
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 3 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
Main Bearing Bolts
M14 x 2.0 2 Connecting Rod Nuts
M12 x 1.5
Connecting Rod Nuts
M12 x 1.5 3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0Camshaft and Timing System
1 Camshaft Sprocket Bolt
M12 x 1.5
Camshaft Sprocket Bolt
M12 x 1.5 2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Engine Accessories
1 Oil Pump Bolts
M10 x 1.5
Oil Pump Bolts
M10 x 1.5 2 Water Pump Bolts
M8 x 1.25
Water Pump Bolts
M8 x 1.25 3 Thermostat Housing Bolts
M8 x 1.25
Thermostat Housing Bolts
M8 x 1.25Engine Mounts and Transmission
1 Engine Block to Transmission Bellhousing Bolts
M14 x 2.0
Engine Block to Transmission Bellhousing Bolts
M14 x 2.0 2 Engine Mounting Bolts
M12 x 1.5
Engine Mounting Bolts
M12 x 1.5Intake and Exhaust System
1 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Ignition and Fuel System
1 Ignition Coil Bolt
M8 x 1.25
Ignition Coil Bolt
M8 x 1.25 2 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 3.5l Engine
Torque specifications for 3.5L Engine
3.5l Engine
Torque specifications for 3.5L Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 3 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Engine Block
1 Main Bearing Bolts
M14 x 2.0
Main Bearing Bolts
M14 x 2.0 2 Connecting Rod Nuts
M12 x 1.75
Connecting Rod Nuts
M12 x 1.75Camshaft
1 Camshaft Sprocket Bolt
M16 x 2.0
Camshaft Sprocket Bolt
M16 x 2.0 2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Crankshaft
1 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 2.5
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 2.5Oil Pan
1 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5Exhaust System
1 Exhaust Manifold/Headers Bolts
M12 x 1.75
Exhaust Manifold/Headers Bolts
M12 x 1.75Fuel System
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25Ignition System
1 Spark Plugs
14mm x 1.25
Spark Plugs
14mm x 1.25 3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25 3 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Engine Block
1 Main Bearing Bolts
M14 x 2.0
Main Bearing Bolts
M14 x 2.0 2 Connecting Rod Nuts
M12 x 1.75
Connecting Rod Nuts
M12 x 1.75Camshaft
1 Camshaft Sprocket Bolt
M16 x 2.0
Camshaft Sprocket Bolt
M16 x 2.0 2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Crankshaft
1 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 2.5
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 2.5Oil Pan
1 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5Exhaust System
1 Exhaust Manifold/Headers Bolts
M12 x 1.75
Exhaust Manifold/Headers Bolts
M12 x 1.75Fuel System
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25Ignition System
1 Spark Plugs
14mm x 1.25
Spark Plugs
14mm x 1.25 4.3l Engine
Torque specifications for 4.3L Engine
4.3l Engine
Torque specifications for 4.3L 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
M14 x 1.5
Cylinder Head to Engine Block Studs
M14 x 1.5Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
Main Bearing Bolts
M16 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5Camshaft and Valve Train
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Intake and Exhaust Manifolds
1 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Fuel System
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 2 Fuel Rail Bolts
M10 x 1.5
Fuel Rail Bolts
M10 x 1.5Oil System
1 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5 2 Oil Filter Housing Bolt
M10 x 1.5
Oil Filter Housing Bolt
M10 x 1.5Engine Mounts and Transmission
1 Engine Block to Transmission Mounting Bolts
M14 x 1.5
Engine Block to Transmission Mounting Bolts
M14 x 1.5 2 Engine Mounting Bolts
M12 x 1.5
Engine Mounting Bolts
M12 x 1.5 4.3l V8 Engine
Torque specifications for 4.3L-V8 Engine
4.3l V8 Engine
Torque specifications for 4.3L-V8 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
M14 x 1.5
Cylinder Head to Engine Block Studs
M14 x 1.5Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
Main Bearing Bolts
M16 x 1.5 2 Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M20 x 1.5Camshaft and Valve Train
1 Camshaft Sprocket Bolt
M14 x 1.5
Camshaft Sprocket Bolt
M14 x 1.5 2 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Intake and Exhaust Manifolds
1 Intake Manifold Bolts
M10 x 1.5
Intake Manifold Bolts
M10 x 1.5 2 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5Fuel System
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 2 Fuel Rail Bolts
M10 x 1.5
Fuel Rail Bolts
M10 x 1.5Oil System
1 Oil Pan Bolts
M10 x 1.5
Oil Pan Bolts
M10 x 1.5 2 Oil Filter Housing Bolt
M10 x 1.5
Oil Filter Housing Bolt
M10 x 1.5Engine Mounts and Transmission
1 Engine Block to Transmission Mounting Bolts
M14 x 1.5
Engine Block to Transmission Mounting Bolts
M14 x 1.5 2 Engine Mounting Bolts
M12 x 1.5
Engine Mounting Bolts
M12 x 1.5 4.6l Engine
Torque specifications for 4.6L Engine
4.6l Engine
Torque specifications for 4.6L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Connecting Rods and Crankshaft
1 Connecting Rod Nuts
M10 x 1.5
Connecting Rod Nuts
M10 x 1.5Flywheel and Transmission
1 Flywheel Bolts
M14 x 1.5
Flywheel Bolts
M14 x 1.5Oil Pan and Engine Block
1 Oil Pan Bolts
M8 x 1.25
Oil Pan Bolts
M8 x 1.25Valve Train and Cylinder Head
1 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25Timing Belt/Chain and Tensioner
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Camshaft and Sprocket
1 Camshaft Sprocket Bolt
M12 x 1.5
Camshaft Sprocket Bolt
M12 x 1.5Crankshaft Pulley/Harmonic Balancer
1 Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5Throttle Body and Intake Manifold
1 Throttle Body Bolts
M8 x 1.25
Throttle Body Bolts
M8 x 1.25Exhaust Manifold/Headers
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
Exhaust Manifold/Headers Bolts
M10 x 1.5Spark Plugs
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25Rocker Arms/Shafts
1 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Fuel Injectors and Fuel Rail
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25Oil Filter Housing
1 Oil Filter Housing Bolt
M10 x 1.5
Oil Filter Housing Bolt
M10 x 1.5Oil Drain Plug
1 Oil Drain Plug Bolt
M12 x 1.5
Oil Drain Plug Bolt
M12 x 1.5 4.6l V8 Engine
Torque specifications for 4.6L-V8 Engine
4.6l V8 Engine
Torque specifications for 4.6L-V8 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5 2 Main Bearing Bolts
M14 x 1.5
Main Bearing Bolts
M14 x 1.5Connecting Rods and Crankshaft
1 Connecting Rod Nuts
M10 x 1.5
Connecting Rod Nuts
M10 x 1.5Flywheel and Transmission
1 Flywheel Bolts
M14 x 1.5
Flywheel Bolts
M14 x 1.5Oil Pan and Engine Block
1 Oil Pan Bolts
M8 x 1.25
Oil Pan Bolts
M8 x 1.25Valve Train and Cylinder Head
1 Valve Cover Bolts
M8 x 1.25
Valve Cover Bolts
M8 x 1.25Timing Belt/Chain and Tensioner
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Timing Belt/Chain Tensioner Bolt
M10 x 1.5Camshaft and Sprocket
1 Camshaft Sprocket Bolt
M12 x 1.5
Camshaft Sprocket Bolt
M12 x 1.5Crankshaft Pulley/Harmonic Balancer
1 Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5Throttle Body and Intake Manifold
1 Throttle Body Bolts
M8 x 1.25
Throttle Body Bolts
M8 x 1.25Exhaust Manifold/Headers
1 Exhaust Manifold/Headers Bolts
M10 x 1.5
Exhaust Manifold/Headers Bolts
M10 x 1.5Spark Plugs
1 Spark Plugs
M14 x 1.25
Spark Plugs
M14 x 1.25Rocker Arms/Shafts
1 Rocker Arms/Shafts Bolts
M10 x 1.5
Rocker Arms/Shafts Bolts
M10 x 1.5Fuel Injectors and Fuel Rail
1 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25Oil Filter Housing
1 Oil Filter Housing Bolt
M10 x 1.5
Oil Filter Housing Bolt
M10 x 1.5Oil Drain Plug
1 Oil Drain Plug Bolt
M12 x 1.5
Oil Drain Plug Bolt
M12 x 1.5 A760 Transmission
Torque specifications for A760 Transmission
A760 Transmission
Torque specifications for A760 Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M14 x 1.5
Transmission Mounting Bolts
M14 x 1.5Transmission Oil Pan
1 Transmission Oil Pan Bolts
M10 x 1.25
Transmission Oil Pan Bolts
M10 x 1.25Transmission Fluid Drain and Fill
1 Transmission Drain and Fill Plugs
M12 x 1.5
Transmission Drain and Fill Plugs
M12 x 1.5 2 Transmission Fluid Drain/Fill Plug
M12 x 1.5
Transmission Fluid Drain/Fill Plug
M12 x 1.5Transmission Case
1 Transmission Case Bolts
M14 x 1.5
Transmission Case Bolts
M14 x 1.5Valve Body
1 Valve Body Bolts
M10 x 1.25
Valve Body Bolts
M10 x 1.25Torque Converter
1 Torque Converter Bolts
M12 x 1.5
Torque Converter Bolts
M12 x 1.5Transmission Cooler Lines
1 Transmission Cooler Line Fittings
M10 x 1.25
Transmission Cooler Line Fittings
M10 x 1.25 A960e Transmission
Torque specifications for A960e Transmission
A960e Transmission
Torque specifications for A960e Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M10 x 1.5
Transmission Mounting Bolts
M10 x 1.5Transmission Fluid Management
1 Transmission Oil Pan Bolts
M8 x 1.25
Transmission Oil Pan Bolts
M8 x 1.25 2 Transmission Drain and Fill Plugs
M12 x 1.75
Transmission Drain and Fill Plugs
M12 x 1.75 3 Transmission Fluid Filter Bolt/Nut
M10 x 1.5
Transmission Fluid Filter Bolt/Nut
M10 x 1.5Transmission Drive Components
1 Drive Axle/Half Shaft Bolts
M12 x 1.75
Drive Axle/Half Shaft Bolts
M12 x 1.75 2 CV Joint/Axle Nut
M14 x 1.5
CV Joint/Axle Nut
M14 x 1.5 3 Propeller/Drive Shaft Bolts
M12 x 1.75
Propeller/Drive Shaft Bolts
M12 x 1.75Transmission Housing
1 Transmission Housing Bolts
M10 x 1.5
Transmission Housing Bolts
M10 x 1.5Transmission Shift Mechanism
1 Transmission Shift Linkage Bolts
M8 x 1.25
Transmission Shift Linkage Bolts
M8 x 1.25 Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5 2 Control Arm Bolts
M12 x 1.25
Control Arm Bolts
M12 x 1.25 3 Ball Joint Nut
M16 x 1.5
Ball Joint Nut
M16 x 1.5 4 Tie Rod End Nut
M10 x 1.25
Tie Rod End Nut
M10 x 1.25 5 Sway Bar Link Nut
M8 x 1.25
Sway Bar Link Nut
M8 x 1.25Steering
1 Steering Gear/Rack Bolts
M14 x 1.5
Steering Gear/Rack Bolts
M14 x 1.5Body
1 Body Mount Bolts
M12 x 1.25
Body Mount Bolts
M12 x 1.25 2 Fender Bolts
M8 x 1.25
Fender Bolts
M8 x 1.25 3 Hood Hinge Bolts
M6 x 1.0
Hood Hinge Bolts
M6 x 1.0 4 Trunk Lid Hinge Bolts
M6 x 1.0
Trunk Lid Hinge Bolts
M6 x 1.0 5 Door Hinge Bolts
M6 x 1.0
Door Hinge Bolts
M6 x 1.0 Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper System
1 Brake Caliper Bolts
M10 x 1.5
Brake Caliper Bolts
M10 x 1.5 2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Brake Rotor System
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
Brake Disc/Drum Retaining Bolts
M8 x 1.25Wheel Attachment System
1 Wheel Lug Nuts
M14 x 1.5
Wheel Lug Nuts
M14 x 1.5Brake Hydraulic System
1 Brake Hose Banjo Bolt
M8 x 1.25
Brake Hose Banjo Bolt
M8 x 1.25 2 Brake Master Cylinder Mounting Bolts
M6 x 1.0
Brake Master Cylinder Mounting Bolts
M6 x 1.0 3 Brake Booster Mounting Bolts
M6 x 1.0
Brake Booster Mounting Bolts
M6 x 1.0Brake Pedal System
1 Brake Pedal Pivot Bolt
M6 x 1.0
Brake Pedal Pivot Bolt
M6 x 1.0Abs Sensor System
1 ABS Sensor Mounting Bolts
M5 x 0.8
ABS Sensor Mounting Bolts
M5 x 0.8 Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Interface
1 Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
Engine Block to Transmission Bellhousing Bolts
M14 x 1.5 2 Transmission Crossmember Bolts
M12 x 1.25
Transmission Crossmember Bolts
M12 x 1.25Transmission and Drivetrain
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25 2 Transmission Mounting Bolts
M12 x 1.25
Transmission Mounting Bolts
M12 x 1.25 3 Transmission Oil Pan Bolts
M8 x 1.25
Transmission Oil Pan Bolts
M8 x 1.25 4 Drive Axle/Half Shaft Bolts
M14 x 1.5
Drive Axle/Half Shaft Bolts
M14 x 1.5 5 CV Joint/Axle Nut
M20 x 1.5
CV Joint/Axle Nut
M20 x 1.5 6 Propeller/Drive Shaft Bolts
M12 x 1.25
Propeller/Drive Shaft Bolts
M12 x 1.25Differential and Transfer Case
1 Differential Cover Bolts
M10 x 1.25
Differential Cover Bolts
M10 x 1.25 2 Transfer Case Mounting Bolts
M12 x 1.25
Transfer Case Mounting Bolts
M12 x 1.25 3 Differential Drain/Fill Plug
M12 x 1.25
Differential Drain/Fill Plug
M12 x 1.25 4 Transfer Case Drain/Fill Plug
M12 x 1.25
Transfer Case Drain/Fill Plug
M12 x 1.25 Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Battery and Charging System
1 Battery Terminal Nuts
M8 x 1.25
Battery Terminal Nuts
M8 x 1.25 2 Alternator Mounting Bolts
M12 x 1.5
Alternator Mounting Bolts
M12 x 1.5 3 Starter Motor Mounting Bolts
M12 x 1.5
Starter Motor Mounting Bolts
M12 x 1.5Ignition System
1 Ignition Coil Mounting Bolts
M8 x 1.25
Ignition Coil Mounting Bolts
M8 x 1.25 2 Spark Plug Wire Boots
M6 x 1.0
Spark Plug Wire Boots
M6 x 1.0Grounding System
1 Ground Strap Bolts
M10 x 1.5
Ground Strap Bolts
M10 x 1.5 Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Egr Valve
1 EGR Valve Bolts
M10 x 1.25
EGR Valve Bolts
M10 x 1.25Exhaust Manifold
1 Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Manifold/Headers Bolts
M12 x 1.5 2 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25Exhaust Pipe
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5 2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25 3 Muffler to Exhaust Pipe Bolts
M10 x 1.25
Muffler to Exhaust Pipe Bolts
M10 x 1.25Emissions Sensors
1 Oxygen Sensor (O2 Sensor) Mounting Bolts
M8 x 1.25
Oxygen Sensor (O2 Sensor) Mounting Bolts
M8 x 1.25 2 Catalytic Converter Heat Shield Bolts
M6 x 1.0
Catalytic Converter Heat Shield Bolts
M6 x 1.0 3 Exhaust Gas Temperature Sensor Bolts
M6 x 1.0
Exhaust Gas Temperature Sensor Bolts
M6 x 1.0 4 DPF (Diesel Particulate Filter) Mounting Bolts
M10 x 1.25
DPF (Diesel Particulate Filter) Mounting Bolts
M10 x 1.25 Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold and Headers
1 Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5 2 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25Exhaust Pipe and Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5 2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25 3 Muffler to Exhaust Pipe Bolts
M10 x 1.25
Muffler to Exhaust Pipe Bolts
M10 x 1.25Oxygen Sensor and Heat Shield
1 Oxygen Sensor Bolts
M8 x 1.25
Oxygen Sensor Bolts
M8 x 1.25 2 Heat Shield Bolts
M6 x 1.0
Heat Shield Bolts
M6 x 1.0Exhaust System Mounting
1 Exhaust System Mounting Bolts
M10 x 1.25
Exhaust System Mounting Bolts
M10 x 1.25Exhaust Pipe Flange
1 Exhaust Pipe Flange Bolts
M12 x 1.5
Exhaust Pipe Flange Bolts
M12 x 1.5 Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail and Injector System
1 Fuel Rail Bolts
M12 x 1.5
Fuel Rail Bolts
M12 x 1.5 2 Fuel Injector Bolts
M8 x 1.25
Fuel Injector Bolts
M8 x 1.25 3 Fuel Injector Rail Bolts
M12 x 1.5
Fuel Injector Rail Bolts
M12 x 1.5Fuel Pump and Tank System
1 Fuel Pump Mounting Bolts
M14 x 2.0
Fuel Pump Mounting Bolts
M14 x 2.0 2 Fuel Tank Strap Bolts
M14 x 2.0
Fuel Tank Strap Bolts
M14 x 2.0Fuel Filter and Filler System
1 Fuel Filter Bolt/Nut
M16 x 1.5
Fuel Filter Bolt/Nut
M16 x 1.5 2 Fuel Filler Neck Bolts
M10 x 1.25
Fuel Filler Neck Bolts
M10 x 1.25Fuel Pressure Regulator and Vent System
1 Fuel Pressure Regulator Mounting Bolts
M10 x 1.25
Fuel Pressure Regulator Mounting Bolts
M10 x 1.25 2 Fuel Tank Vent Valve Bolts
M10 x 1.25
Fuel Tank Vent Valve Bolts
M10 x 1.25 3 Fuel Line Fittings
M12 x 1.5
Fuel Line Fittings
M12 x 1.5 Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Ac Compressor
1 A/C Compressor Mounting Bolts
M10 x 1.25
A/C Compressor Mounting Bolts
M10 x 1.25Ac Lines
1 A/C Line Fittings
M8 x 1.0
A/C Line Fittings
M8 x 1.0Evaporator Core
1 Evaporator Core Housing Bolts
M6 x 1.0
Evaporator Core Housing Bolts
M6 x 1.0Blower Motor
1 Blower Motor Mounting Bolts
M6 x 1.0
Blower Motor Mounting Bolts
M6 x 1.0Heater Core
1 Heater Core Inlet/Outlet Pipe Bolts
M8 x 1.25
Heater Core Inlet/Outlet Pipe Bolts
M8 x 1.25Hvac Case
1 HVAC Case Assembly Bolts
M6 x 1.0
HVAC Case Assembly Bolts
M6 x 1.0Condenser
1 Condenser Mounting Bolts
M10 x 1.25
Condenser Mounting Bolts
M10 x 1.25 Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5 2 Control Arm Bolts
M12 x 1.25
Control Arm Bolts
M12 x 1.25 3 Ball Joint Nut
M16 x 1.5
Ball Joint Nut
M16 x 1.5 4 Tie Rod End Nut
M10 x 1.25
Tie Rod End Nut
M10 x 1.25 5 Sway Bar Link Nut
M8 x 1.25
Sway Bar Link Nut
M8 x 1.25 6 Upper Control Arm Bushing Bolts
M10 x 1.25
Upper Control Arm Bushing Bolts
M10 x 1.25 7 Lower Control Arm Bolts
M12 x 1.25
Lower Control Arm Bolts
M12 x 1.25Steering System
1 Steering Gear Mounting Bolts
M14 x 1.5
Steering Gear Mounting Bolts
M14 x 1.5Suspension Springs
1 Coil Spring Mounting Bolts
M10 x 1.25
Coil Spring Mounting Bolts
M10 x 1.25Troubleshooting 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 recommended torque value for the cylinder head bolts on a 2005-2011 Lexus GS?
What IS the recommended torque value for the cylinder head bolts on a 2005-2011 Lexus GS?
The recommended torque value IS 65 ft-lbs (88 Nm) in three stages. First, tighten the bolts to 30 ft-lbs (41 Nm). Then, tighten them to 50 ft-lbs (68 Nm). Finally, tighten them to 65 ft-lbs (88 Nm) using an angle torque wrench and turning the bolts an additional 90 degrees.
Q2 What type of torque wrench should be used for critical bolts on the Lexus GS?
What type of torque wrench should be used for critical bolts on the Lexus GS?
An angle torque wrench with a built-in protractor IS recommended for critical bolts that require precise angle tightening. For example, the cylinder head bolts require a final tightening of 90 degrees after reaching the specified torque value.
Q3 IS it safe to use an impact wrench on the bolts of a Lexus GS?
IS it safe to use an impact wrench on the bolts of a Lexus GS?
Generally, it IS not recommended to use an impact wrench on critical bolts of a Lexus GS. Impact wrenches can apply excessive torque, which may damage the bolts or the components they are attached to. Use a torque wrench to ensure accurate and safe tightening.
Q4 What are the torque specifications for the spark plugs on a Lexus GS?
What are the torque specifications for the spark plugs on a Lexus GS?
The torque specification for spark plugs on a 2005-2011 Lexus GS IS 18 ft-lbs (24 Nm). Tighten the spark plugs to the specified torque value using a torque wrench to prevent overtightening or undertightening.
Q5 How often should the torque of critical bolts be checked on a Lexus GS?
How often should the torque of critical bolts be checked on a Lexus GS?
The torque of critical bolts should be checked periodically, especially after any major maintenance or repair work. It IS recommended to refer to the Lexus maintenance schedule for specific intervals for torque checks.
Q6 What are the consequences of overtightening or undertightening bolts on a Lexus GS?
What are the consequences of overtightening or undertightening bolts on a Lexus GS?
Overtightening bolts can lead to stripped threads, damaged components, and increased risk of failure. Undertightening bolts can result in loose components, leaks, and potential safety hazards. It IS crucial to follow the specified torque values and use a calibrated torque wrench to ensure proper tightening.
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 GS.
- 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 Mounts Removal and Installation
Step-by-step procedure for removing and installing engine mounts on the Lexus GS, including torque specifications.
- Remove the engine cover.
- Disconnect the negative battery terminal.
- Support the engine with a floor jack and jack stands.
- Remove the bolts connecting the engine mount to the engine.
- Remove the bolts connecting the engine mount to the subframe.
- Remove the engine mount.
- Install the new engine mount.
- Tighten the bolts connecting the engine mount to the subframe to 59 Nm (43 ft-lb).
- Tighten the bolts connecting the engine mount to the engine to 75 Nm (55 ft-lb).
- Connect the negative battery terminal.
- Install the engine cover.
Brake Pad Replacement
Detailed instructions for replacing brake pads on the Lexus GS, including torque specifications for the caliper bolts.
- Remove the wheel.
- Remove the brake caliper bolts.
- Remove the brake caliper.
- Remove the brake pads.
- Clean the brake caliper and rotor.
- Install the new brake pads.
- Install the brake caliper.
- Tighten the caliper bolts to 113 Nm (83 ft-lb).
- Install the wheel.
Technical Service Bulletins
Engine Coolant Leak
2008-03-01Technical Service Bulletin regarding a potential engine coolant leak on the Lexus GS, providing revised torque specifications for the coolant hose.
Resolution: Inspect the coolant hose for leaks. If a leak IS found, replace the hose and tighten the hose clamps to 25 Nm (18 ft-lb).
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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.
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