Buick Encore 2013-2019 Suspension Bolt Torque Specifications
Detailed torque specifications for suspension bolts on the 2013-2019 Buick Encore, including front and rear suspension components. Includes torque values in both foot-pounds (ft-lbs) and Newton-meters (Nm).
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
Front Suspension
Torque specifications for the major components of the front suspension system, including struts, control arms, and related connections.
1 Strut Upper Mounting Bolts
M10 x 1.5
Strut Upper Mounting Bolts
M10 x 1.5Torque Value
Important Notes
2 Lower Strut Mount Pinch Bolt
M14 x 1.5
Lower Strut Mount Pinch Bolt
M14 x 1.5Torque Value
Important Notes
3 Control Arm Mounting Bolts
M14 x 2.0
Control Arm Mounting Bolts
M14 x 2.0Torque Value
Important Notes
4 Ball Joint Nut
M12 x 1.5
Ball Joint Nut
M12 x 1.5Torque Value
Important Notes
5 Tie Rod End Nut
M12 x 1.25
Tie Rod End Nut
M12 x 1.25Torque Value
Important Notes
6 Sway Bar Link Nut
M10 x 1.5
Sway Bar Link Nut
M10 x 1.5Torque Value
Important Notes
7 Stabilizer Bar Mounting Bracket Bolts
M10 x 1.5
Stabilizer Bar Mounting Bracket Bolts
M10 x 1.5Torque Value
Important Notes
Rear Suspension
Torque specifications for the major components of the rear suspension system, including shocks/struts and related connections.
1 Rear Shock/Strut Lower Mounting Bolt
M12 x 1.75
Rear Shock/Strut Lower Mounting Bolt
M12 x 1.75Torque Value
Important Notes
2 Upper Control Arm Bolts
M12 x 1.75
Upper Control Arm Bolts
M12 x 1.75Torque Value
Important Notes
Wheel Speed Sensor
Torque specification for the wheel speed sensor mounting bolts.
1 Wheel Speed Sensor Bolt
M6 x 1.0
Wheel Speed Sensor Bolt
M6 x 1.0Torque 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?
Correct torque is crucial for maintaining proper clamping force, preventing bolt failure, and ensuring safe and predictable suspension performance. Under-torqued bolts can loosen, causing instability, noise, and damage, while over-torqued bolts can stretch or break, compromising the integrity of the suspension system.
Q2 Can I use an impact wrench to tighten suspension bolts?
Can I use an impact wrench to tighten suspension bolts?
It's generally not recommended to use an impact wrench for final tightening of suspension bolts. Impact wrenches can easily over-torque fasteners. It's better to use a torque wrench for accurate tightening to specified values. An impact wrench might be okay for initial tightening but should NOT be used to reach final torque specifications.
Q3 What happens if I don't have a torque wrench?
What happens if I don't have a torque wrench?
While a torque wrench is highly recommended for accurate suspension work, you could use a manual wrench with care. If you don't have a torque wrench, you will likely need to take the vehicle to a professional as the bolt may not be torqued to specification. This is critical to the safe operation of the vehicle and should not be skipped.
Q4 Should I use new bolts when working on the suspension?
Should I use new bolts when working on the suspension?
It is always recommended to use new bolts, particularly for safety-critical suspension components, especially torque-to-yield bolts. These bolts are designed to stretch upon installation and cannot be reused effectively. Reusing bolts can lead to improper clamping force, premature failure and can be dangerous.
Q5 Do torque specs change if the bolt is dirty or rusty?
Do torque specs change if the bolt is dirty or rusty?
Yes, dirt and rust can affect the friction between the bolt and the component, leading to inaccurate torque readings. Ensure all threads are clean and rust-free. Consider cleaning the bolt and threads with a wire brush before installation. If they are heavily corroded, they should be replaced.
Q6 Are there different torque specs for different suspension components?
Are there different torque specs for different suspension components?
Yes, each suspension component, such as control arms, struts, sway bars, and tie rods, will have different torque specifications. Always refer to the correct torque specs for each bolt to ensure proper assembly.
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 inch Drive)
Used to apply precise torque to fasteners.
- Measures torque in ft-lbs or Nm
- Click-type or digital readout
Torque Wrench (3/8 inch Drive)
Used for lower torque applications.
- Measures torque in in-lbs or Nm
- Suitable for smaller fasteners
Socket Set (Metric)
Set of sockets to fit various bolt and nut sizes.
- Includes common sizes for suspension fasteners
- 6-point sockets recommended for better grip
Wrench Set (Metric)
Set of wrenches to hold or turn bolts when needed
- Includes open-end and box-end wrenches
- Needed for alignment and access to fasteners
Jack Stands
Used to support the vehicle safely during service.
- Rated for the vehicle weight
- Adjustable height
Vehicle Jack
Used to lift the vehicle to provide access to suspension components.
- Rated for the vehicle weight
- Stable lifting base
Penetrating Lubricant
Used to loosen stubborn or corroded fasteners.
- Reduces friction
- Helps prevent breakage
Service Procedures
Front Strut Assembly Removal and Installation
Detailed procedure for safely removing and installing the front strut assembly.
- Loosen lug nuts and raise the vehicle with jack, securing with jack stands.
- Remove the wheel.
- Disconnect the ABS sensor wire from the strut mount.
- Remove the sway bar end link from the strut.
- Remove the brake line bracket from the strut.
- Support the lower control arm with a jack.
- Remove the two strut to knuckle bolts.
- Slowly lower the control arm and remove the strut assembly.
- Install in reverse order, torquing all fasteners to specification. Use a new strut mount nut if necessary.
Rear Shock Absorber Replacement
Detailed procedure for safely removing and installing the rear shock absorber.
- Loosen lug nuts and raise the vehicle with jack, securing with jack stands.
- Remove the wheel.
- Remove the lower shock bolt.
- Remove the upper shock mounting hardware.
- Remove the old shock.
- Install the new shock, ensuring correct orientation.
- Install the upper shock mounting hardware and torque to specifications.
- Install lower bolt, torquing to specifications.
- Reinstall the wheel and lower the vehicle.
Sway Bar End Link Replacement
Procedure for replacing the sway bar end links
- Loosen lug nuts and raise the vehicle with jack, securing with jack stands.
- Remove the wheel.
- Using a wrench or socket hold the ball joint portion and loosen the sway bar end link nuts.
- Remove the old sway bar end link.
- Install the new end link, ensuring correct orientation.
- Tighten the nuts while holding the ball joint and torque to specifications.
- Reinstall the wheel and lower the vehicle.
Technical Service Bulletins
Front Strut Mount Squeak Noise
2016-03-15Some 2013-2016 Buick Encore vehicles may exhibit a squeaking noise from the front strut mounts.
Resolution: Replace the front strut mounts with the updated design part. Ensure proper torque specifications are followed.
Rear Suspension Clunking Noise
2017-08-22Some 2016-2019 Buick Encore vehicles may exhibit a clunking noise from the rear suspension, particularly during turns or over bumps.
Resolution: Inspect and retorque rear suspension bolts, especially the shock absorber bolts, control arm bolts and rear trailing arm bolts. Replace any worn parts as necessary and align rear suspension.
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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.