why does my Genesis G70 make a clunking sound when turning?

Genesis G70 1st Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

565 words

Problem Statement

Learn how to diagnose and fix clunking sound when turning in Genesis G70. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported before working underneath it.
•Disconnect the battery before working on electrical components.

Symptoms

•Clunking or popping noise during turns
•Increased play in the steering wheel
•Vibration felt through the steering column
•Unusual tire wear patterns
•Difficulty steering or a loose steering feel

Diagnostic Steps

1
Inspect the vehicle's suspension components for visible damage or wear, including control arms, bushings, and struts.
2
Check the condition of the CV joints and boots for any signs of wear or tearing.
3
Test the steering linkage for play or wear, including tie rod ends and steering rack.
4
Scan for any error codes related to the Electronic Stability Control (ESC) system that may indicate a related issue.
5
Perform a test drive to replicate the noise and determine if it occurs under specific conditions (e.g., sharp turns, acceleration).

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Hydraulic jack
•Jack stands
•Lug wrench
•Torque wrench
•CV joint puller

Parts Required

•Control arm bushings (if damaged)
•New CV joint or axle (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the vehicle's suspension components for visible damage or wear, including control arms, bushings, and struts.
2
Check the condition of the CV joints and boots for any signs of wear or tearing.
3
Test the steering linkage for play or wear, including tie rod ends and steering rack.
4
Scan for any error codes related to the Electronic Stability Control (ESC) system that may indicate a related issue.
5
Perform a test drive to replicate the noise and determine if it occurs under specific conditions (e.g., sharp turns, acceleration).

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface and secure it with wheel chocks.
Disconnect the battery to avoid any electrical issues during repair.

2. Inspect and Replace Suspension Components

Lift the Vehicle
- Use a hydraulic jack to lift the vehicle and secure it with jack stands.
- Tools Required: Hydraulic jack, jack stands.
Remove Wheel
- Remove the lug nuts and take off the front wheel for better access to the suspension components.
- Tools Required: Lug wrench.
Inspect Control Arms and Bushings
- Check for any cracked or worn bushings in the control arms. If they are damaged, remove the control arm and replace the bushings.
- Sub-steps:
  - Unbolt the control arm from the chassis and steering knuckle.
  - Replace the bushings with new ones and reassemble.
- Torque Specification: Refer to the manufacturer’s service manual for specific torque values.

3. Inspect and Replace CV Joints

Examine CV Joints
- Check the CV joints for any signs of damage or torn boots. If damaged, replacement is necessary.
- Sub-steps:
  - Remove the axle nut and disconnect the CV joint from the steering knuckle.
  - Remove the axle from the transmission and replace with a new one.
- Tools Required: Torque wrench, CV joint puller.
Reassemble
- Reattach the CV joint to the steering knuckle and torque the axle nut to the specified value.

4. Reinstall Wheel and Lower Vehicle

Put the wheel back on and tighten the lug nuts in a star pattern.
Lower the vehicle back to the ground and reconnect the battery.