Acura Vehicle Models TL 2004-2008 Torque Specifications
Acura Vehicle Models TL 2004-2008

Acura Vehicle Models TL 2004-2008 Torque Specifications

Complete Acura Vehicle Models TL 2004-2008 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

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3.2l Engine

Torque specifications for 3.2L Engine

3.2l Engine Cylinder Head

1

Cylinder Head Bolts

M12 x 1.75 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Cylinder head bolts typically require an angle torque procedure after the initial torque. Refer to the service manual for angle torque spec. Bolt size is estimated.
2

Camshaft Bearing Cap Bolts

M8 x 1.25 (Estimated)
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Tighten in a sequence working from the center outward. Bolt size is estimated.
3

Valve Cover Bolts

M6 x 1.0 (Estimated)
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern to ensure even sealing. Bolt size is estimated.
4

Rocker Arms/Shafts Bolts

M8 x 1.25 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a specified sequence for proper valve train alignment. Bolt size is estimated.
5

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten all bolts to the specified torque in a cross pattern. Bolt size is estimated.

3.2l Engine Block

1

Main Bearing Bolts

M12 x 1.75 (Estimated)
Torque Specification
56 ft-lbs (76 N·m)
Important Notes
Tighten in a specified sequence. Bolt size is estimated.
2

Oil Pan Bolts

M6 x 1.0 (Estimated)
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern to ensure even sealing. Bolt size is estimated.
3

Knock Sensor Bolt

M8 x 1.25 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Bolt size is estimated.
4

Engine Mount Bolts (Engine Block/Bracket)

M10 x 1.5 (Estimated)
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Torque varies by location. This is an estimated range, consult specific diagrams for each mount location. Bolt size is estimated.
5

Timing Cover Bolts

M6 x 1.0 (Estimated)
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten the timing cover bolts in a cross pattern to ensure even sealing. Bolt size is estimated.
6

Water Pump Bolts

M8 x 1.25 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a cross pattern to ensure proper sealing. Bolt size is estimated.
7

Oil Drain Plug Bolt

M14 x 1.5 (Estimated)
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Bolt size is estimated. Always use a new crush washer.

3.2l Engine Intake Manifold

1

Intake Manifold Bolts

M8 x 1.25 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a cross pattern to ensure even sealing. Bolt size is estimated.
2

Throttle Body Bolts

M6 x 1.0 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten in a cross pattern to ensure proper sealing. Bolt size is estimated.
3

EGR Valve Bolts

M6 x 1.0 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Bolt size is estimated.
4

Fuel Rail Bolts

M6 x 1.0 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Bolt size is estimated.
5

Fuel Injector Bolts/Clips

M6 x 1.0 (Estimated)
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Some injectors use clips or clamps rather than bolts. Bolt size is estimated.

3.2l Engine Timing System

1

Timing Belt/Chain Tensioner Bolt

M10 x 1.5 (Estimated)
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Bolt size is estimated.
2

Camshaft Sprocket Bolt

M10 x 1.25 (Estimated)
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Bolt size is estimated.

3.2l Engine Crankshaft

1

Flywheel Bolts

M10 x 1.25 (Estimated)
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Bolt size is estimated.
2

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5 (Estimated)
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Bolt size is estimated. Always use a new bolt when installing this component.
3

Connecting Rod Nuts

M9 x 1.25 (Estimated)
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Connecting rod nuts typically require an angle torque procedure after the initial torque. Refer to the service manual for angle torque spec. Bolt size is estimated.

3.2l Engine Cooling System

1

Water Pump Pulley Bolts

M6 x 1.0 (Estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Bolt size is estimated.
2

Thermostat Housing Bolts

M6 x 1.0 (Estimated)
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern. Bolt size is estimated.

3.2l Engine Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M10 x 1.5 (Estimated)
Torque Specification
31 ft-lbs (42 N·m)
Important Notes
Bolt size is estimated.
2

Drive Belt Idler Pulley Bolt

M10 x 1.5 (Estimated)
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Bolt size is estimated.
3

A/C Compressor Bracket Bolts

M10 x 1.5 (Estimated)
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Tighten all bolts to 33 ft-lbs (45 N·m). Bolt size is estimated.
4

Power Steering Pump Bracket Bolts

M10 x 1.5 (Estimated)
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Tighten all bolts to 33 ft-lbs (45 N·m). Bolt size is estimated.

3.2l Engine Ignition

1

Spark Plugs

M14 x 1.25 (Estimated)
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Tighten to the specified torque using a torque wrench. Do not over tighten. Bolt size is estimated.
2

Ignition Coil Bolt

M6 x 1.0 (Estimated)
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Bolt size is estimated.

3.5l Engine

Torque specifications for 3.5L Engine

3.5l Engine Cylinder Head

1

Cylinder Head Bolts

M11 x 1.25 (Estimated)
Torque Specification
1. 16 ft-lbs (22 N·m) 2. 90°
Important Notes
Cylinder head bolts are tightened in multiple stages. An angle torque is required after the initial torque value. Consult the service manual for the precise angle specification. Estimated bolt size.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the valve cover to the cylinder head.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the rocker arm assembly to the cylinder head.
4

Spark Plugs

M14 x 1.25 (Thread Size, not bolt)
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
This is the torque specification for spark plug installation. Be careful not to overtighten.
5

Ignition Coil Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts secure the ignition coils to the cylinder head or valve cover.
6

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the exhaust manifold/headers to the cylinder head. Note that some service manuals may have an earlier torque value, then a final tightening after an engine warm up cycle.

3.5l Engine Block

1

Main Bearing Bolts

M10 x 1.5 (Estimated)
Torque Specification
1. 56 ft-lbs (76 N·m) 2. 60°
Important Notes
Main bearing bolts are tightened in multiple stages. An angle torque is required after the initial torque value. Consult the service manual for the precise angle specification. Estimated bolt size.
2

Connecting Rod Nuts

M9 x 1.25 (Estimated)
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
These nuts secure the connecting rod caps to the connecting rods. Estimated bolt size.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the oil pan to the engine block.
4

Water Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the water pump to the engine block.
5

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
This bolt seals the oil drain hole in the oil pan.
6

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the starter motor to the engine block or transmission bellhousing.

3.5l Engine Timing

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
This bolt secures the timing belt tensioner.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
These bolts secure the camshaft sprockets to the camshafts.

3.5l Engine Induction

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the throttle body to the intake manifold.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts attach the intake manifold to the cylinder head.
3

EGR Valve Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the EGR valve to the intake manifold, cylinder head, or exhaust manifold.
4

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts attach the fuel rail to the intake manifold or cylinder head.
5

Fuel Injector Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the fuel injector rail to the intake manifold.
6

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the fuel injectors to the intake manifold or fuel rail.

3.5l Engine Cooling

1

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
These bolts secure the water pump pulley to the water pump itself.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the thermostat housing to the engine block or cylinder head.

3.5l Engine Accessories

1

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5 (Estimated)
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
This bolt secures the crankshaft pulley/harmonic balancer to the crankshaft. Estimated bolt size.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the alternator to the engine block or bracket.
3

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the A/C compressor to the engine block or bracket.
4

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This is the recommended torque for a crankshaft position sensor bolt. Estimated bolt size.

3.5l Engine Other

1

Flywheel Bolts

M10 x 1.25 (Estimated)
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
These bolts attach the flywheel to the crankshaft. Estimated bolt size.
2

Oil Filter Housing Bolt

N/A (Hand Tight)
Torque Specification
N/A
Important Notes
Oil filter housings are typically hand tight. Do not use a torque wrench.

Body

Torque specifications for Body

Body Panels Exterior

1

Hood Hinge Bolts to Body

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar components and bolt size.
2

Fender Bolts/Screws to Body

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar components and bolt size.
3

Bumper Cover Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.
4

Mirror Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar components and bolt size.
5

Taillight Assembly Mounting Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.
6

Headlight Assembly Mounting Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.

Body Doors

1

Door Hinge Bolts to Body

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated value based on similar components and bolt size.
2

Door Latch Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar components and bolt size.
3

Door Window Regulator Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.

Body Interior

1

Seat Mounting Bolts to Floor Pan

M10 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Estimated value. Torque may vary depending on bolt size. Ensure all bolts are properly tightened.
2

Dashboard Mounting Bolts/Screws to Body

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.
3

Trim Panel Bolts/Screws

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.
4

Sunroof Frame/Mechanism Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Use caution when tightening bolts into plastic, use 'feel' method to avoid damage.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper torque to secure the fuel tank safely.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure proper torque to prevent fuel leaks.

Electrical System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure proper torque for a reliable electrical connection.

Wheels Tires

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Tighten lug nuts in a star pattern for even clamping force.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the brake caliper to the mounting bracket. Ensure proper alignment before tightening.
2

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Connects the brake hose to the caliper. Use new crush washers and ensure proper alignment to prevent leaks.
3

Bleeder Screw

M7 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Used for bleeding air from the brake system. Do not over tighten as the threads can be easily stripped.

Brake Mounting Bracket

1

Brake Caliper Mounting Bracket Bolts

M12 x 1.25
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
Secures the mounting bracket to the steering knuckle or hub. Ensure bolts are clean and in good condition.

Brake Rotor

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Used to hold the rotor or drum in place during assembly, not for braking forces.

Wheel And Hub

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Secures the wheel to the rotor/drum. Tighten in a star pattern to ensure even pressure.

Abs System

1

ABS Wheel Speed Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the ABS wheel speed sensor to the hub or steering knuckle. Do not over tighten as it can damage the sensor.

Master Cylinder And Booster

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the master cylinder to the brake booster or firewall. Ensure proper alignment before tightening.
2

Brake Booster Mounting Nuts/Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the brake booster to the firewall. Ensure proper alignment before tightening.

Drivetrain

Torque specifications for Drivetrain

Drivetrain Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Tighten in a crisscross pattern.

Drivetrain Clutch

1

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Tighten in a crisscross pattern. Ensure proper alignment of the clutch disc.

Drivetrain Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten in a sequence that pulls the transmission evenly to the engine. Check alignment after installation.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a crisscross pattern to ensure even gasket compression.
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer for the drain plug. Ensure the threads are clean before installing.
4

Transmission Output Shaft Flange Nut/Bolt

M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure the flange is properly seated before tightening. This torque spec is estimated.

Drivetrain Drive Axle

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Tighten in a crisscross pattern.
2

CV Joint/Axle Nut

M22 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Ensure the nut is properly engaged on the threads. Use a new nut if specified by the manufacturer.

Drivetrain Propeller Shaft

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Tighten in a crisscross pattern.

Drivetrain Differential

1

Differential Drain/Fill Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer for the drain plug. Ensure the threads are clean before installing.
2

Differential Mounting Bolts

M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Tighten in a sequence that pulls the differential evenly to the chassis/subframe. This value is an estimate.
3

Ring Gear Bolts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Tighten in a crisscross pattern to evenly distribute clamping force.
4

Pinion Gear Nut

M24 x 1.5
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
This nut preloads the pinion bearings. Proper torque is critical for proper operation. This value is estimated.

Drivetrain Transfer Case

1

Transfer Case Drain/Fill Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer for the drain plug. Ensure the threads are clean before installing.

Electrical

Torque specifications for Electrical

3.0l Engine Cylinder Head

1

Ignition Coil Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure coil is properly seated before tightening. Do not overtighten.
2

Camshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure sensor is flush against mounting surface.

3.0l Engine Block

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure starter motor is properly aligned before tightening. Tighten bolts evenly.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure alternator is properly aligned before tightening. Tighten bolts evenly.
3

Crankshaft Position Sensor Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure sensor is flush against mounting surface.

Chassis And Body

1

Ground Strap Bolts to Chassis/Engine

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Ensure clean, bare metal contact for optimal grounding. This is an estimated value.
2

Fuse Box/Relay Box Mounting Screws

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not overtighten to avoid damaging the fuse box. This is an estimated value.

Battery

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not overtighten. Over-tightening can damage the terminals. Ensure terminal is properly seated on battery post. Terminal must be clean.

Electrical Control Unit

1

Engine Control Unit (ECU) Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure ECU is properly positioned before tightening. Do not overtighten. This is an estimated value.

Emissions Sensors

Torque specifications for Emissions_sensors

3.0l Engine Cylinder Head

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper gasket alignment. Always use a torque wrench.

3.0l Intake Manifold

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper gasket alignment. Always use a torque wrench. Do not overtighten.
2

Manifold Absolute Pressure (MAP) Sensor Mounting Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Do not overtighten. Always use a torque wrench.

3.0l Exhaust System

1

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper gasket alignment. Always use a torque wrench.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper gasket or seal is in place. Always use a torque wrench.
3

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper gasket alignment. Always use a torque wrench.
4

Oxygen Sensor (O2 Sensor) Mounting

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value. Use anti-seize compound on sensor threads. Do not overtighten.
5

Air/Fuel Ratio (A/F) Sensor Mounting

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value. Use anti-seize compound on sensor threads. Do not overtighten.

3.0l Evaporative Emissions

1

EVAP System Components Mounting Bolts/Screws

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Do not overtighten. Always use a torque wrench.

Exhaust

Torque specifications for Exhaust

3.0l Engine Cylinder Head

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure mating surfaces are clean. Apply torque evenly to prevent leaks.

3.0l Exhaust Manifold

1

Exhaust Manifold/Headers Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper manifold gasket is installed. Apply torque evenly to prevent leaks.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Often uses spring loaded bolts. Ensure all mating surfaces are clean.

3.0l Exhaust System

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure a new gasket is installed at the flange.
2

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper alignment of the muffler.
3

Exhaust Hanger Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Ensure proper support of the exhaust system.
4

Exhaust Flange Spring Bolts/Nuts

M10 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Use new nuts. Use correct sequence. Check the distance between flanges after final torque to ensure proper spring compression. 1/4 turn is approximately 90 degrees.

3.0l Sensors

1

Oxygen Sensor (O2 Sensor)

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Do not over tighten. Use anti-seize compound if necessary.

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque bolts in a cross pattern to ensure even pressure distribution. Step torque recommended.
2

Fuel Injector Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure proper injector seating before tightening.
3

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Verify specific spec if available.
4

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten to specified torque to ensure secure mounting.
5

Fuel Line Fittings (Various)

Varies by fitting
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Torque range is 12-22 ft-lbs (16-30 N·m), verify specific fitting for proper torque value.

Fuel Tank System

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure fuel pump is properly seated before tightening.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to ensure secure tank mounting.
3

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the filler neck is properly aligned before tightening.
4

Fuel Tank Sending Unit Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Use caution when tightening to avoid damaging the sending unit. Verify specific spec if available.

H5 Transmission

Torque specifications for H5 Transmission

H5 Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure bolts are of correct grade and length. Clean threads before installation.

H5 Transmission Case

1

Transmission Case Bolts (8mm)

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Check service manual for specific locations. Apply in a gradual, even pattern
2

Transmission Case Bolts (10mm)

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value. Check service manual for specific locations. Apply in a gradual, even pattern

H5 Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Use a new gasket. Tighten bolts in a criss-cross pattern.

H5 Transmission Drain Fill

1

Transmission Drain Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer. Do not over-tighten.
2

Transmission Fill Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use a new sealing washer. Do not over-tighten.

H5 Transmission Drive Axle

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Ensure proper seating of the axle flange to the transmission output.
2

CV Joint/Axle Nut

M22 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Use a new nut if necessary. Ensure proper seating of the CV joint.

H5 Transmission Shift Linkage

1

Shift Linkage Bolts/Nuts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated value, specific locations may vary. Refer to service manual.

H5 Transmission Clutch Fork

1

Manual Transmission Clutch Fork Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Estimated value. Ensure clutch fork moves freely.

Hvac

Torque specifications for Hvac

Hvac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alignment of compressor before tightening. Torque bolts evenly.
2

A/C Line Fittings

Varies by location, typically 3/8-24 and 5/8-18 flares or O-ring fittings
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a back-up wrench to avoid twisting the line, tighten fittings to proper torque to prevent leaks. Ensure o-ring is in good condition prior to tightening.

Hvac Condenser

1

A/C Condenser Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as this can damage the mounting brackets or condenser fins. Estimated Value.

Hvac Evaporator

1

A/C Evaporator Core Mounting Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as this can damage the evaporator core or air duct housing. Estimated Value.

Hvac Blower Motor

1

HVAC Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as this can damage the blower motor housing or HVAC housing. Estimated Value.

Hvac Actuators

1

HVAC Mode Actuator Mounting Screws/Bolts

M4 x 0.7
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Do not overtighten, as this can damage the plastic actuator housing. Estimated Value.
2

Blend Door Actuator Mounting Screws/Bolts

M4 x 0.7
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Do not overtighten, as this can damage the plastic actuator housing. Estimated Value.

Hvac Receiver Drier

1

A/C Receiver Drier/Accumulator Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Do not overtighten, as this can damage the mounting points on the chassis, or other components. Estimated Value.

Hvac Pressure Switch

1

A/C Pressure Switch/Sensor Mounting Bolts/Nuts

Varies, typical M8 or smaller lock nut or bolt
Torque Specification
2 ft-lbs (2.5 N·m)
Important Notes
Tighten the switch/sensor mounting bolt/nut by hand until snug. Overtightening can damage the fitting or the sensor. Estimated hand tight value to be less than 2 ft-lbs (2.5 N.m).

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Top Mounting Bolts

M10 x 1.25
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Secures the top of the strut to the vehicle's chassis.
2

Front Lower Shock Mount Bolt to Knuckle

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Secures the lower end of the strut to the steering knuckle.
3

Front Upper Control Arm Ball Joint Nut

M12 x 1.25
Torque Specification
32 ft-lbs (43 N·m)
Important Notes
Secures the ball joint to the upper control arm.
4

Lower Control Arm Bolts

M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Attaches the lower control arm to the vehicle's frame or subframe.
5

Sway Bar Link Nut

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Secures the sway bar links to the sway bar and strut or control arm.
6

Tie Rod End Nut

M12 x 1.25
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Attaches the tie rod end to the steering knuckle.

Rear Suspension

1

Rear Shock Lower Mounting Bolt

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Secures the lower end of the shock absorber to the rear suspension arm.
2

Rear Upper Control Arm Inner Bolts

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the upper control arms to the chassis. Torque is per bolt. Typically two bolts per arm.
3

Rear Lower Control Arm Inner Bolts

M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secures the lower control arms to the chassis. Torque is per bolt. Typically two bolts per arm.
4

Rear Knuckle Bolts

M12 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Secures the rear knuckle to the upper and lower control arms and other components. Multiple bolts.

Subframe

1

Subframe Bolts

M14 x 1.5
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
Secures the subframe to the vehicle's chassis. Torque is per bolt.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque for the lug nuts on a 2004-2008 Acura TL?

100 ft-lbs (136 Nm) using a torque wrench. Refer to the Acura TL service manual for specific guidelines.

Q2

How can I ensure accurate torque measurements when tightening bolts?

Always use a calibrated torque wrench and follow the manufacturer's instructions. Apply steady pressure while tightening and double-check the torque value to ensure precision.

Q3

What are the potential consequences of over-tightening bolts?

Over-tightening can damage bolts, strip threads, and cause components to fail prematurely. It can also lead to increased stress on surrounding parts.

Q4

When should thread locking compound be used on bolts?

Thread locking compound IS recommended for bolts that are subject to vibration or loosening. It helps prevent bolts from backing out over time.

Q5

What type of torque wrench IS best suited for automotive applications?

For optimal accuracy and precision, use a click-type torque wrench that IS calibrated specifically for automotive use.

Q6

IS it acceptable to use an impact wrench for tightening critical bolts?

No. Impact wrenches can apply excessive torque and damage bolts. Use a torque wrench for precise torque application.

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 TL.

  • 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
Technical Service Bulletins

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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.
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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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