Lexus Vehicle Models LC 2018-present Torque Specifications
Lexus Vehicle Models LC 2018-present

Lexus Vehicle Models LC 2018-present Torque Specifications

Complete Lexus Vehicle Models LC 2018-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Torque Calculator

Convert between different torque units

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (36 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force and prevent head gasket failure.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Follow the specified torque sequence to ensure proper bearing alignment.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure the rod bearings are properly seated before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Follow the specified torque sequence to prevent manifold warping.
2

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the gasket is properly seated before tightening.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the fuel rail is properly aligned before tightening.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the injectors are properly seated before tightening.

3.5l V6 Hybrid Engine

Torque specifications for 3.5L-V6-HYBRID Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (36 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force and prevent head gasket failure.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Follow the specified torque sequence to ensure proper bearing alignment.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure the rod bearings are properly seated before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Follow the specified torque sequence to prevent manifold warping.
2

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the gasket is properly seated before tightening.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the fuel rail is properly aligned before tightening.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the injectors are properly seated before tightening.

5.0l Engine

Torque specifications for 5.0L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (36 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence diagram for proper tightening order.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Follow the manufacturer's torque sequence for main bearing caps.
2

Flywheel Bolts

M10 x 1.5
Torque Specification
83 ft-lbs (113 N·m)
Important Notes
Use thread locker on flywheel bolts as specified by the manufacturer.

Pistons And Connecting Rods

1

Connecting Rod Nuts

M8 x 1.25
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure proper bearing alignment before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Ensure proper alignment of the timing marks before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Follow the manufacturer's torque sequence for the intake manifold.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

5.0l V8 Engine

Torque specifications for 5.0L-V8 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 27 ft-lbs (36 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence diagram for proper tightening order.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Follow the manufacturer's torque sequence for main bearing caps.
2

Flywheel Bolts

M10 x 1.5
Torque Specification
83 ft-lbs (113 N·m)
Important Notes
Use thread locker on flywheel bolts as specified by the manufacturer.

Pistons And Connecting Rods

1

Connecting Rod Nuts

M8 x 1.25
Torque Specification
34 ft-lbs (46 N·m)
Important Notes
Ensure proper bearing alignment before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Ensure proper alignment of the timing marks before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Follow the manufacturer's torque sequence for the intake manifold.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Awr10 Transmission

Torque specifications for Awr10 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
51 ft-lbs (69 N·m)

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
80 in-lbs (9 N·m)
Important Notes
Note: The torque specification is in inch-lbs, not ft-lbs.

Transmission Drain and Fill

1

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)

Torque Converter

1

Torque Converter Bolts

M14 x 1.5
Torque Specification
35 ft-lbs (48 N·m)
Important Notes
Estimated value, consult official repair manual for confirmation.

Transmission Case

1

Transmission Case Bolts

M12 x 1.5
Torque Specification
43 ft-lbs (59 N·m)
Important Notes
Estimated value, consult official repair manual for confirmation.

Clutch Pack

1

Clutch Pack Bolts

M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value, consult official repair manual for confirmation. Only applicable if clutch pack is equipped.

Planetary Gear

1

Planetary Gear Bolts

M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value, consult official repair manual for confirmation.

Output Shaft

1

Output Shaft Nut

M20 x 2.5
Torque Specification
120 ft-lbs (163 N·m)

Body

Torque specifications for Body

Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (201 N·m)
2

Control Arm Bolts

M12 x 1.5
Torque Specification
111 ft-lbs (150 N·m)
3

Ball Joint Nut

M16 x 1.5
Torque Specification
67 ft-lbs (91 N·m)
4

Tie Rod End Nut

M14 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
5

Sway Bar Link Nut

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)

Steering

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)

Body and Frame

1

Body Mount Bolts

M12 x 1.5 (estimated)
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations or a repair manual for the correct torque value.
2

Fender Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations or a repair manual for the correct torque value.
3

Hood Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations or a repair manual for the correct torque value.
4

Door Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations or a repair manual for the correct torque value.
5

Trunk Lid Hinge Bolts

M10 x 1.5 (estimated)
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations or a repair manual for the correct torque value.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
Ensure proper alignment of the caliper during installation.
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Ensure the bracket is properly seated before torquing.
3

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use new sealing washers to prevent leaks.

Brake Rotor System

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the rotor is properly seated on the hub before torquing.

Brake Hydraulic System

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the master cylinder is properly aligned with the brake booster.
2

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the booster is properly seated against the firewall.
3

Brake Bleeder Screw

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Avoid over-tightening to prevent damage to the screw or caliper.

Brake Pedal System

1

Brake Pedal Bracket Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure the pedal assembly is properly aligned before torquing.

Wheel And Rotor System

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Use a crisscross pattern to ensure even clamping force.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Interface

1

Flywheel Bolts

M12 x 1.5
Torque Specification
83 ft-lbs (113 N·m)
Important Notes
Proper torque ensures the flywheel is securely attached to the crankshaft.

Transmission Mounting and Support

1

Transmission Mounting Bolts

M14 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Proper torque ensures the transmission is properly aligned and supported.
2

Transmission Crossmember Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Proper torque ensures the transmission crossmember is properly supported and aligned.

Transmission Oil Pan and Drain/Fill Plug

1

Transmission Oil Pan Bolts

M10 x 1.5
Torque Specification
80 in-lbs (9 N·m)
Important Notes
Proper torque ensures the oil pan is sealed and the transmission is properly lubricated.
2

Transmission Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Proper torque ensures the plug is properly sealed and the transmission is properly lubricated.

Drive Axle/Half Shaft and CV Joint

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Proper torque ensures the axle/half shaft is properly attached and aligned.
2

CV Joint/Axle Nut

M18 x 1.5
Torque Specification
159 ft-lbs (216 N·m)
Important Notes
Proper torque ensures the CV joint is properly attached and the axle/half shaft is secure.

Differential and Propeller/Drive Shaft

1

Differential Cover Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Proper torque ensures the differential cover is properly sealed and the differential is properly lubricated.
2

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Proper torque ensures the plug is properly sealed and the differential is properly lubricated.
3

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Proper torque ensures the propeller/drive shaft is properly attached and aligned.

Transfer Case and Axle/Half Shaft Retaining Bolts

1

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Proper torque ensures the plug is properly sealed and the transfer case is properly lubricated.
2

Axle/Half Shaft Retaining Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Proper torque ensures the axle/half shaft is properly attached and aligned.

Electrical

Torque specifications for Electrical

Electrical System Mounting

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
2

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
29 ft-lbs (39 N·m)

Electrical Connectors

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
48 in-lbs (5 N·m)
Important Notes
Note: The torque value is specified in inch-pounds, not foot-pounds.
2

Ignition Coil Bracket Bolts

M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 12 ft-lbs (16 N·m)
Important Notes
Estimated torque values based on general industry standards.
3

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m) 2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.
4

A/C Compressor Electrical Connector Bolts

M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m) 2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold Headers

1

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
27 ft-lbs (36 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Emissions Sensors

1

Oxygen Sensor (O2 Sensor) Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure sensor is properly seated before tightening.
2

NOx Sensor Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure sensor is properly seated before tightening.
3

Exhaust Gas Temperature Sensor Mounting Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure sensor is properly seated before tightening.

Egr System

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Diesel Particulate Filter

1

DPF Mounting Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper sequence to avoid warping the DPF housing.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
27 ft-lbs (36 N·m)
Important Notes
Ensure proper torque sequence to avoid warping the manifold or headers.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure a secure connection to prevent leaks and heat damage.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment to avoid stress on the catalytic converter.

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment to avoid stress on the muffler.

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Exhaust Hanger

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Oxygen Sensor

1

Oxygen Sensor Mounting Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure proper alignment to avoid damaging the sensor.

Exhaust Flange

1

Exhaust Flange Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper torque sequence to avoid warping the flange.

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Over-tightening can damage the injector seals.
3

High-Pressure Fuel Line Fittings

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar high-pressure fittings.
4

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure regulator is properly seated before tightening.

Fuel Storage System

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Converted from inch-lbs to ft-lbs for consistency.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure straps are evenly tensioned to avoid tank deformation.
3

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Converted from inch-lbs to ft-lbs for consistency.

Fuel Filling System

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Converted from inch-lbs to ft-lbs for consistency.

Fuel Filtration System

1

Fuel Filter Bolt/Nut

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the filter housing is properly seated before tightening.
2

Fuel Line Clamp Bolts

M6 x 1.0
Torque Specification
6.67 ft-lbs (9 N·m)
Important Notes
Converted from inch-lbs to ft-lbs for consistency.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Ac Lines

1

A/C Line Fittings

M8 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a torque wrench to avoid overtightening, which can damage fittings.

Evaporator

1

Evaporator Core Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Heater Core

1

Heater Core Inlet/Outlet Pipe Bolts

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on typical M8 bolt torque specifications.

Hvac Control Module

1

HVAC Control Module Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.

Condenser

1

Condenser Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (201 N·m)
Important Notes
Secure the strut/shock absorber to the vehicle's frame.
2

Control Arm Bolts

M12 x 1.25
Torque Specification
111 ft-lbs (150 N·m)
Important Notes
Connect the control arms to the vehicle's frame and suspension components.
3

Ball Joint Nut

M16 x 1.5
Torque Specification
67 ft-lbs (91 N·m)
Important Notes
Secure the ball joint to the control arm.
4

Tie Rod End Nut

M10 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Secure the tie rod end to the steering rack or control arm.
5

Sway Bar Link Nut

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secure the sway bar link to the sway bar and control arm.
6

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the upper control arm bushings to the control arm.
7

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the lower control arm bushings to the control arm.

Steering System

1

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Secure the steering gear or rack to the vehicle's frame.

Rear Suspension

1

Stabilizer Bar Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure the stabilizer bar to the vehicle's frame.
2

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure the coil spring to the strut or shock absorber.

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 are the torque specifications for the wheel lug nuts?

103 ft-lbs (140 Nm) for all models and years

Q2

What tools can I use to properly measure torque?

Torque wrench, Digital torque wrench, Beam-type torque wrench

Q3

How do I properly lubricate a lug nut or bolt before torquing it?

Apply a small amount of anti-seize lubricant to the threads of the lug nut or bolt before installation

Q4

What IS the recommended tightening sequence for the wheel lug nuts?

Tighten the lug nuts in a star pattern, gradually working your way around the wheel

Q5

How often should I check the torque of my lug nuts?

Every 6 months or 6,000 miles, whichever comes first

Q6

Can I use a tire iron to tighten the lug nuts?

No, a tire iron IS not designed to apply accurate torque and can damage the lug nuts or bolts

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 Lexus lc.

  • 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

Lexus LC Torque Specifications

Comprehensive guide to torque specifications for various components on the Lexus lc, including engine, suspension, brakes, and body.

  • Refer to the specific section in the guide for the component you are working on.
  • Locate the corresponding torque value in the table.
  • Use a torque wrench to tighten the fastener to the specified torque.
  • Follow all safety precautions and warnings outlined in the guide.
  • Note: Torque specifications may vary depending on the model year and trim level.
View full procedure
Technical Service Bulletins

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General Information
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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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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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