GMC Terrain 2010-2017 Suspension Bolt Torque Specifications
Find the precise torque specifications for suspension bolts on the 2010-2017 GMC Terrain. This document provides critical information for proper maintenance and repair, ensuring vehicle safety and longevity.
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 And Shock Mounting
These bolts secure the strut and shock absorber assemblies to the vehicle's suspension components.
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.5
Strut/Shock Absorber Mounting Bolts
M12 x 1.5Torque Value
Important Notes
Control Arm Mounting
These bolts connect the control arms to the vehicle's frame and/or other suspension components.
1 Control Arm Bolts
M14 x 2.0
Control Arm Bolts
M14 x 2.0Torque Value
Important Notes
Ball Joint Connections
These connections secure the ball joint to the control arm.
1 Ball Joint Nut
M16 x 2.5
Ball Joint Nut
M16 x 2.5Torque Value
Important Notes
Tie Rod End Connections
These connections secure the tie rod end to the steering knuckle.
1 Tie Rod End Nut
M12 x 1.5
Tie Rod End Nut
M12 x 1.5Torque Value
Important Notes
Sway Bar Link Connections
These connections secure the sway bar link to the sway bar and/or other mounting points.
1 Sway Bar Link Nut
M10 x 1.25
Sway Bar Link Nut
M10 x 1.25Torque Value
Important Notes
Brake Caliper Mounting
These components secure the brake calipers to the vehicle's suspension components.
1 Brake Caliper Bolts
M10 x 1.25
Brake Caliper Bolts
M10 x 1.25Torque Value
Important Notes
2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Torque Value
Important Notes
Wheel Hub Mounting
These bolts/nuts secure the wheel hubs to the vehicle's axle.
1 Wheel Hub Bolts/Nuts
M14 x 2.0
Wheel Hub Bolts/Nuts
M14 x 2.0Torque 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?
Incorrect torque on suspension bolts can lead to premature failure. Over-torquing can strip threads or damage the bolt/mounting points. Under-torquing allows bolts to loosen, potentially leading to a loss of vehicle control and safety in driving situations (e.g., on a turn or during braking).
Q2 What if I don't have the correct torque wrench?
What if I don't have the correct torque wrench?
Using a torque wrench is critical. A properly calibrated torque wrench ensures the correct amount of tightening. If you don't have one, seek assistance from a qualified mechanic. Using a guesstimate can be disastrous.
Q3 How often should I check suspension bolt torque on my 2010-2017 GMC Terrain?
How often should I check suspension bolt torque on my 2010-2017 GMC Terrain?
It's recommended to check suspension bolt torque every 12,000-15,000 miles or after any significant suspension work. However, regular inspections are crucial, especially if the vehicle has been in rough terrain or experienced impacts.
Q4 Can I use a different grade of bolt?
Can I use a different grade of bolt?
Absolutely not. Use ONLY the specified grade of bolt in the manufacturer's documentation for the 2010-2017 GMC Terrain. Substituting with a different grade can significantly compromise the safety and integrity of the suspension system.
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
A calibrated torque wrench is essential for accurate torque application.
- Accurate torque readings
- Adjustable settings for different torque values
- Durable construction for repeated use
Socket Set
A set of sockets appropriate for the suspension bolt sizes.
- Various sizes for different suspension bolts
- Durable construction for repeated use
Ratchet
A ratchet is used for applying torque to the sockets.
- Allows for controlled torque application
- Different sizes and styles available
- Durable construction for repeated use
Impact Wrench (Optional)
An impact wrench can speed up the process, but precision is still important.
- Fastens bolts quickly
- May introduce higher potential for damage if not used appropriately
Jack Stands
Safe lifting of the vehicle for suspension work.
- Stable support for vehicle lift
- Various sizes for different vehicle weights
Jack
Necessary for lifting the vehicle to access suspension components.
- Safe lifting of the vehicle for suspension work
- Appropriate lifting capacity for the vehicle
Service Procedures
Front Suspension Bolt Torque Procedure
Detailed procedure for tightening front suspension bolts.
- 1. Safely support the vehicle using jack stands.
- 2. Loosen all suspension bolts using a ratchet and appropriate socket.
- 3. Apply new suspension bolts with appropriate thread locker
- 4. Tighten the bolts in a star pattern to the specified torque values in the technical bulletin.
- 5. Lower the vehicle and re-check the torque of all bolts.
Rear Suspension Bolt Torque Procedure
Detailed procedure for tightening rear suspension bolts.
- 1. Safely support the vehicle using jack stands.
- 2. Loosen all suspension bolts using a ratchet and appropriate socket.
- 3. Apply new suspension bolts with appropriate thread locker
- 4. Tighten the bolts in a star pattern to the specified torque values in the technical bulletin.
- 5. Lower the vehicle and re-check the torque of all bolts.
Technical Service Bulletins
Suspension Bolt Torque Specifications
2023-10-27This bulletin provides updated torque specifications for suspension bolts on 2010-2017 GMC Terrain models.
Resolution: Refer to the provided torque specifications document for the precise values for each suspension bolt.
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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.