Acura CL 2001-2003 Suspension Bolt Torque Specifications
Detailed torque specifications for all suspension bolts on the 2001-2003 Acura CL, including front and rear components.
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
Search Specifications
Search by component name, bolt size, or description
Torque Calculator
Convert between different torque units
Strut Shock Absorber
This subsystem includes all components related to the strut and shock absorber assembly, which provide damping and support for the suspension system.
1 Strut/Shock Absorber Mounting Bolts
M10 x 1.25
Strut/Shock Absorber Mounting Bolts
M10 x 1.25Torque Value
Important Notes
2 Lower Strut Mounting Bolts
M12 x 1.5
Lower Strut Mounting Bolts
M12 x 1.5Torque Value
Important Notes
3 Upper Strut Mount Nut
M10 x 1.25
Upper Strut Mount Nut
M10 x 1.25Torque Value
Important Notes
Control Arms
This subsystem includes all components related to the control arms, which connect the suspension to the chassis and wheel hub.
1 Control Arm Bolts
M12 x 1.5
Control Arm Bolts
M12 x 1.5Torque Value
Important Notes
2 Ball Joint Nut
M10 x 1.25
Ball Joint Nut
M10 x 1.25Torque Value
Important Notes
Steering Components
This subsystem includes all components related to the steering system, which controls the direction of the vehicle.
1 Tie Rod End Nut
M10 x 1.25
Tie Rod End Nut
M10 x 1.25Torque Value
Important Notes
2 Steering Gear/Rack Bolts
M10 x 1.25
Steering Gear/Rack Bolts
M10 x 1.25Torque Value
Important Notes
3 Steering Knuckle Bolts
M12 x 1.5
Steering Knuckle Bolts
M12 x 1.5Torque Value
Important Notes
Sway Bar
This subsystem includes all components related to the sway bar, which reduces body roll and improves handling stability.
1 Sway Bar Link Nut
M8 x 1.25
Sway Bar Link Nut
M8 x 1.25Torque Value
Important Notes
2 Sway Bar Bracket Bolts
M8 x 1.25
Sway Bar Bracket Bolts
M8 x 1.25Torque Value
Important Notes
Wheels
This subsystem includes all components related to the wheels, which provide traction and support for the vehicle.
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Torque Value
Important Notes
Subframe
This subsystem includes all components related to the subframe, which supports the suspension and engine components.
1 Subframe Bolts
M12 x 1.5
Subframe Bolts
M12 x 1.5Torque Value
Important Notes
Troubleshooting 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 Why are torque specifications important for suspension bolts?
Why are torque specifications important for suspension bolts?
Proper torque ensures that suspension components are held securely without being overstressed. Under-torquing can lead to loosening, causing instability and potentially dangerous situations. Over-torquing can damage threads, weaken bolts, or distort components, leading to premature failure and increased risk.
Q2 What happens if I don't use a torque wrench?
What happens if I don't use a torque wrench?
Without a torque wrench, you risk either under or over-tightening bolts. 'Hand tight' is unreliable. Under-tightening can cause bolts to back out, and over-tightening can damage the bolts, threads, or components. Both can create unsafe driving conditions. A torque wrench provides accurate and consistent tightening.
Q3 Should I use thread locker on suspension bolts?
Should I use thread locker on suspension bolts?
Generally, yes. Medium-strength thread locker (like Loctite 242) is recommended on most suspension bolts to prevent them from loosening due to vibration and road shock. Always refer to the manufacturer's service manual. Some bolts, like castle nuts, may have cotter pins instead. Avoid thread locker on bolts specifically intended to be self-locking.
Q4 How often should I check my suspension bolt torque?
How often should I check my suspension bolt torque?
After any suspension work, it's crucial to re-torque the bolts after a short test drive (about 50-100 miles) and periodically thereafter, especially if you drive on rough roads or frequently carry heavy loads. A good rule of thumb is to check them every 6 months or 6,000 miles, whichever comes first. Inspect visually for damage while you are at it.
Q5 Do I need to replace suspension bolts after removing them?
Do I need to replace suspension bolts after removing them?
It depends on the bolt's condition and type. Some bolts, like those that secure shock absorbers and the control arms, can be reused unless they are damaged or stretched. However, one-time-use bolts, such as stretch bolts used in some modern car’s suspension components, must always be replaced. Always consult the vehicle's service manual.
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
Torque Wrench (1/2" Drive)
A calibrated torque wrench capable of measuring in foot-pounds (ft-lbs) or Newton-meters (Nm) is essential for properly tightening suspension bolts to the manufacturer's specifications.
- Click-type mechanism for accurate torque application
- Wide torque range to cover various suspension bolt specifications
Torque Wrench (3/8" Drive)
A smaller 3/8" drive torque wrench can be useful for smaller suspension fasteners that require lower torque settings.
- Smaller head for access in tight spaces
- Lower torque range than 1/2" drive
Socket Set (Metric)
A comprehensive set of metric sockets is needed to fit the various bolt head sizes used in the Acura CL suspension.
- Includes common sizes like 10mm, 12mm, 14mm, 17mm, 19mm
- Both standard and deep sockets recommended
Extension Bars
Extension bars provide the extra reach needed to access recessed or difficult-to-reach suspension bolts.
- Varying lengths to accommodate different needs
- Durable construction
Jack Stands
Heavy duty jack stands are needed to support the vehicle after it has been raised with a jack.
- Weight rated for the vehicle
- Adjustable height
Service Procedures
Front Strut Assembly Removal and Installation
Detailed steps for safely removing and installing the front strut assembly, including proper bolt torque specifications.
- Loosen lug nuts on the front wheel.
- Raise the front of the vehicle using a jack and secure it with jack stands.
- Remove the front wheel.
- Disconnect the brake line and ABS sensor wire from the strut assembly.
- Remove the sway bar end link.
- Unbolt the lower strut bolts and separate from knuckle.
- Remove the upper strut mounting nuts.
- Carefully remove the strut assembly.
- Install new strut assembly, aligning the top mounts and lower bolts.
- Torque all bolts to the specified torque.
- Reattach the sway bar end link, brake line and ABS sensor.
- Reinstall wheel and lower vehicle.
Rear Shock Absorber Removal and Installation
Detailed steps for removing and installing the rear shock absorbers, including proper bolt torque specifications.
- Loosen lug nuts on the rear wheel.
- Raise the rear of the vehicle using a jack and secure it with jack stands.
- Remove the rear wheel.
- Remove the lower shock absorber bolt.
- Remove the upper shock absorber bolt.
- Carefully remove the shock absorber.
- Install new shock absorber with all bolts.
- Torque all bolts to the specified torque.
- Reinstall wheel and lower vehicle.
Sway Bar End Link Removal and Installation
Detailed steps for removing and installing sway bar end links including proper bolt torque specifications.
- Loosen lug nuts on the wheel.
- Raise the vehicle using a jack and secure it with jack stands.
- Remove the wheel.
- Remove the upper and lower bolts of the end link.
- Install the new end link and torque all bolts to specified torque
- Reinstall wheel and lower vehicle.
Technical Service Bulletins
Front Suspension Squeak/Clunk Noise
2002-05-15A common complaint of squeaking or clunking noise from the front suspension may be related to loose or worn strut components. Ensure all fasteners are properly torqued to specification and inspect for worn bushings.
Resolution: Inspect all front suspension components and tighten all bolts to specified torque. Replace worn bushings or components if necessary.
Rear Suspension Noise While Driving
2003-01-20A popping, clunking or creaking noise can occur from the rear suspension while driving. Check rear shock mounting bolts for proper torque and inspect for any binding or worn bushings.
Resolution: Ensure all bolts on the rear shock absorber are tightened to specified torque. If the issue persists inspect all bushings and replace if necessary.
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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.