Hyundai Elantra 2016-2020 Suspension Bolt Torque Specifications
Find the precise torque specifications for suspension bolts on the 2016-2020 Hyundai Elantra. Includes critical tightening values for various suspension components for safe and reliable vehicle maintenance.
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
Suspension mounting bolts
Torque specifications for bolts securing various suspension components to the vehicle's frame or subframe.
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.25
Strut/Shock Absorber Mounting Bolts
M12 x 1.25Torque Value
Important Notes
2 Lower Control Arm Mounting Bolts
M14 x 1.5
Lower Control Arm Mounting Bolts
M14 x 1.5Torque Value
Important Notes
3 Upper Control Arm Mounting Bolts
M16 x 1.5
Upper Control Arm Mounting Bolts
M16 x 1.5Torque Value
Important Notes
4 Control Arm Bolts
M12 x 1.5
Control Arm Bolts
M12 x 1.5Torque Value
Important Notes
Steering components
Torque specifications for bolts securing steering components.
1 Ball Joint Nut
M18 x 2.5
Ball Joint Nut
M18 x 2.5Torque Value
Important Notes
2 Tie Rod End Nut
M16 x 2.0
Tie Rod End Nut
M16 x 2.0Torque Value
Important Notes
3 Wheel Hub Bolts
M18 x 2.5
Wheel Hub Bolts
M18 x 2.5Torque Value
Important Notes
Sway bar links
Torque specifications for bolts securing sway bar links.
1 Sway Bar Link Nut
M14 x 2.0
Sway Bar Link Nut
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. Too little torque allows the bolt to loosen, potentially leading to a vehicle pulling to one side, a loss of control, or a complete failure of the suspension component. Too much torque can strip the bolt head or damage the threads, requiring replacement of the bolt or the entire component.
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 crucial. A wrench that's too small or too large can damage the bolt or the fastener. If you don't have the correct torque wrench, consult a qualified mechanic. Do not attempt to use a guesstimate or substitute method. A few dollars invested in the proper tool saves money and prevents potential safety hazards.
Q3 How often should I check the suspension bolts?
How often should I check the suspension bolts?
Regular inspections are essential. Check the torque of suspension bolts during routine maintenance, especially after any significant load or impact. This could include after driving over potholes, hitting a curb, or in the case of a car accident – even if the vehicle appears to be unaffected.
Q4 What should I do if I suspect a suspension bolt is loose?
What should I do if I suspect a suspension bolt is loose?
If you hear unusual noises, feel a pulling sensation, or notice a wobble in the steering wheel, it's a sign that a suspension bolt might be loose. Immediately consult a qualified mechanic for inspection and repair. Do not drive the vehicle until the issue is resolved.
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 settings
- Various torque ranges
- Durable construction
Socket Set
Appropriate sockets for suspension bolt head types are required.
- Variety of sizes
- Durable material
- Ratchet compatibility
Breaker Bar
For use with stubborn bolts requiring extra leverage.
- Increased leverage
- Various lengths available
Torque wrench adapter set
For use with various bolt head types and sizes
- Compatibility to different size bolts
- Durable material
Service Procedures
Front Suspension Bolt Torque Procedure (2016-2020 Hyundai Elantra)
Details the procedure for tightening front suspension bolts to the correct specifications.
- Inspect all suspension bolts for damage or wear.
- Apply appropriate anti-seize compound to suspension bolts.
- Use the torque wrench to tighten all bolts to the manufacturer's specified torque.
- Ensure the suspension bolts are properly seated in the threads.
- Verify the torque readings by re-checking after 360 degree rotation of the wheel.
- Repeat steps for all suspension bolts, ensuring uniform torque.
Rear Suspension Bolt Torque Procedure (2016-2020 Hyundai Elantra)
Details the procedure for tightening rear suspension bolts to the correct specifications.
- Inspect all suspension bolts for damage or wear.
- Apply appropriate anti-seize compound to suspension bolts.
- Use the torque wrench to tighten all bolts to the manufacturer's specified torque.
- Ensure the suspension bolts are properly seated in the threads.
- Verify the torque readings by re-checking after 360 degree rotation of the wheel.
- Repeat steps for all suspension bolts, ensuring uniform torque.
Technical Service Bulletins
Potential for Suspension Bolt Failure in 2017 Hyundai Elantra
2018-03-15This bulletin addresses the potential for suspension bolt failure due to excessive vibration in certain driving conditions.
Resolution: Inspect suspension bolts for damage; replace as needed. Ensure proper torque application and identify the source of vibration to prevent future issues.
Recommended Torque Specifications for 2016-2020 Elantra Suspension Bolts
2019-10-22Provides the updated torque specifications for all suspension bolts on the 2016-2020 Hyundai Elantra.
Resolution: Refer to the torque specifications provided in this bulletin for all suspension bolts.
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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.