Acura RL 1996-2004 Suspension Bolt Torque Specifications & Fastener Values
Acura RL 1996-2004

Acura RL 1996-2004 Suspension Bolt Torque Specifications

Comprehensive list of torque specifications for all suspension bolts on the 1996-2004 Acura RL (Second Generation). Includes front and rear suspension components.

Updated

Important Information

Safety guidelines and reference information for proper torque application

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

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

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

Used for gaskets and cover plates

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

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

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

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

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

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

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

Prevention:

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

Reusing TTY Bolts

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

Prevention:

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

Dry vs. Lubricated

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

Prevention:

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

Recommended Tools

Torque Wrench (1/4" Drive)

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

Torque Wrench (3/8" Drive)

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

Torque Wrench (1/2" Drive)

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

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Front Suspension

Torque specifications for front suspension components.

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.75
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Torque evenly and in a star pattern if multiple bolts are used per mounting location. These are usually M12 bolts, thread pitch estimated.
2

Front Upper Control Arm Mounting Bolts to Body

M14 x 1.5
Torque Value
65 ft-lbs (88 N·m)
Important Notes
These are usually M14 bolts, thread pitch estimated.
3

Control Arm Bolts

M14 x 1.5
Torque Value
72 ft-lbs (98 N·m)
Important Notes
These are usually M14 bolts, thread pitch estimated. Tighten with suspension at ride height if applicable.
4

Ball Joint Nut

M12 x 1.25
Torque Value
36 ft-lbs (49 N·m)
Important Notes
These are usually M12 bolts, thread pitch estimated.
5

Tie Rod End Nut

M12 x 1.25
Torque Value
36 ft-lbs (49 N·m)
Important Notes
These are usually M12 bolts, thread pitch estimated.
6

Sway Bar Link Nut

M10 x 1.5
Torque Value
16 ft-lbs (22 N·m)
Important Notes
These are usually M10 bolts, thread pitch estimated.
7

Stabilizer Bar Link Lower Mount Bolt

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
These are usually M10 bolts, thread pitch estimated.

Rear Suspension

Torque specifications for rear suspension components.

1

Rear Upper Control Arm Mounting Bolts to Body

M14 x 1.5
Torque Value
65 ft-lbs (88 N·m)
Important Notes
These are usually M14 bolts, thread pitch estimated.
2

Rear Lower Control Arm Mounting Bolts to Body

M14 x 1.5
Torque Value
83 ft-lbs (113 N·m)
Important Notes
These are usually M14 bolts, thread pitch estimated.
3

Rear Trailing Arm Mounting Bolts to Body/Chassis

M14 x 1.5
Torque Value
83 ft-lbs (113 N·m)
Important Notes
These are usually M14 bolts, thread pitch estimated. Tighten with suspension at ride height if applicable.

Sway Bar System

Torque specifications for sway bar components.

1

Sway Bar Mounting Bracket Bolts to Frame

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
These are usually M10 bolts, thread pitch estimated.

Wheel Hub Assembly

Torque specifications for the wheel hub and bearing assembly.

1

Wheel Hub/Bearing Assembly Bolts

M12 x 1.5
Important Notes
These are usually M12 bolts, thread pitch estimated. Must use a torque wrench and angle gauge for proper tightening.

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

Why is using the correct torque specification so important for suspension bolts?

Using the correct torque specification ensures that bolts are tightened enough to secure components properly, preventing loosening and potential failure. Overtightening can stretch or break bolts, while under-tightening can lead to movement, noise, and premature wear. For example, an improperly torqued lower control arm bolt can cause steering instability and excessive tire wear.

Q2

Should I use threadlocker on suspension bolts?

Generally, using threadlocker on suspension bolts is not required unless specifically indicated by the manufacturer in the service manual. It's more crucial to use the correct torque specification. If reusing self-locking nuts, it's best to replace them. Always consult your Acura's service manual for specific recommendations. Adding threadlocker where it isn't needed can make future removal harder.

Q3

What tools do I need to properly torque suspension bolts?

You'll need a calibrated torque wrench that covers the specified range for the bolts you are tightening. Use appropriate sized sockets in good condition. Clean any dirt or rust from bolt threads before installation. A breaker bar can help loosen stubborn bolts before re-torquing, but do not use it to tighten to the final torque value.

Q4

What should I do if I suspect a suspension bolt has been over-torqued?

If you suspect a bolt has been over-torqued, it's best practice to replace it. Over-torquing can compromise the structural integrity of the bolt. Even if it doesn't immediately break, it could fail later. Check for thread damage, stretch, or any deformation. It's better to replace a potentially damaged bolt than risk a failure.

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

Torque Wrench (1/2" Drive)

A calibrated torque wrench capable of measuring torque in foot-pounds (ft-lbs) and Newton-meters (Nm).

  • Accurate torque application
  • Click-type mechanism for precise readings
Learn more

Torque Wrench (3/8" Drive)

A smaller calibrated torque wrench for lower torque specifications

  • Accurate torque application for smaller fasteners
  • Click-type mechanism for precise readings
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets, including sizes relevant to suspension components.

  • Various sizes for different bolts and nuts
  • Deep sockets for reaching recessed fasteners
Learn more

Wrench Set (Metric)

A set of metric wrenches, box end and open end, useful for holding fasteners while torqueing

  • Various sizes for different bolts and nuts
  • Different end types for different access requirements
Learn more

Jack Stands

Sturdy jack stands to safely support the vehicle during suspension work.

  • Provides stable support for the vehicle
  • Adjustable height for different working positions
Learn more

Vehicle Jack

A jack to lift the vehicle off of the ground to perform maintenance

  • Provides a safe way to lift the vehicle
  • Compatible with the Acura RL frame
Learn more
Service Procedures

Front Suspension Bolt Torque Procedure

Detailed procedure for torquing front suspension bolts on a 1996-2004 Acura RL.

  • 1. Lift the vehicle and support securely with jack stands.
  • 2. Locate the lower control arm mounting bolts.
  • 3. Using the appropriate socket, begin to tighten the lower control arm bolts and nut. Refer to the torque specification chart for the proper torque value.
  • 4. Locate the upper control arm mounting bolts and nut. Using the appropriate socket, begin to tighten the upper control arm bolts and nut. Refer to the torque specification chart for the proper torque value.
  • 5. Locate the sway bar end link bolts and nuts. Using the appropriate socket and wrench, begin to tighten the sway bar end link bolts and nuts. Refer to the torque specification chart for the proper torque value.
  • 6. Locate the shock absorber lower mount bolt. Using the appropriate socket and wrench, begin to tighten the shock absorber lower mount bolt. Refer to the torque specification chart for the proper torque value.
  • 7. Locate the shock absorber upper mount bolts. Using the appropriate socket, begin to tighten the shock absorber upper mount bolts. Refer to the torque specification chart for the proper torque value.
  • 8. Ensure all bolts are torqued to the correct specifications.
  • 9. Lower the vehicle carefully.
View full procedure

Rear Suspension Bolt Torque Procedure

Detailed procedure for torquing rear suspension bolts on a 1996-2004 Acura RL.

  • 1. Lift the vehicle and support securely with jack stands.
  • 2. Locate the lower control arm mounting bolts and nut.
  • 3. Using the appropriate socket, begin to tighten the lower control arm bolts and nut. Refer to the torque specification chart for the proper torque value.
  • 4. Locate the upper control arm mounting bolts and nut. Using the appropriate socket, begin to tighten the upper control arm bolts and nut. Refer to the torque specification chart for the proper torque value.
  • 5. Locate the sway bar end link bolts and nuts. Using the appropriate socket and wrench, begin to tighten the sway bar end link bolts and nuts. Refer to the torque specification chart for the proper torque value.
  • 6. Locate the shock absorber lower mount bolt. Using the appropriate socket and wrench, begin to tighten the shock absorber lower mount bolt. Refer to the torque specification chart for the proper torque value.
  • 7. Locate the shock absorber upper mount bolts. Using the appropriate socket, begin to tighten the shock absorber upper mount bolts. Refer to the torque specification chart for the proper torque value.
  • 8. Locate the trailing arm mounting bolts. Using the appropriate socket, begin to tighten the trailing arm mounting bolts. Refer to the torque specification chart for the proper torque value.
  • 9. Ensure all bolts are torqued to the correct specifications.
  • 10. Lower the vehicle carefully.
View full procedure
Technical Service Bulletins

Incorrect Torque Value for Rear Lower Control Arm

2002-07-15

A bulletin regarding incorrect torque specification in some service manuals for the rear lower control arm. This could lead to premature failure and handling issues.

1996-2004

Resolution: Tighten the rear lower control arm bolts to 72 ft-lbs (98 Nm) on 1996-2004 models. Always use a properly calibrated torque wrench and follow torque sequence procedure.

Front Upper Control Arm Bolt Re-Torque

2000-03-22

A bulletin stating front upper control arm bolts may loosen over time on some vehicles, leading to abnormal noise. Recommend re-torque at routine service visits.

1996-2002

Resolution: Re-torque the front upper control arm bolts to 47 ft-lbs (64 Nm) during regular servicing. Always check the torque after any suspension repair.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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