why does my Genesis G70 shake when I brake

Genesis G70 IG (2017-2023)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

450 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix shaking during braking in Genesis G70. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on the braking system.
•Allow brakes to cool before inspection to prevent burns.

Symptoms

•Steering wheel shakes when braking
•Pulsation felt in the brake pedal
•Vibration in the vehicle chassis
•Uneven tire wear
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads and rotors for uneven wear or damage.
2
Check brake rotor thickness using a micrometer to ensure they are within specifications.
3
Examine suspension components (e.g., control arms, ball joints) for wear or play.
4
Inspect wheel alignment and balance.
5
Check tire condition and pressure.
6
Scan for any error codes related to the braking system using an OBD-II scanner.

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

•Jack and jack stands
•Lug wrench
•Micrometer
•Torque wrench
•OBD-II scanner

Parts Required

•Brake pads
•Brake rotors (if necessary)

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Diagnostic Steps

1
Inspect brake pads and rotors for uneven wear or damage.
2
Check brake rotor thickness using a micrometer to ensure they are within specifications.
3
Examine suspension components (e.g., control arms, ball joints) for wear or play.
4
Inspect wheel alignment and balance.
5
Check tire condition and pressure.
6
Scan for any error codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Tools Required: Jack and jack stands, lug wrench, micrometer, torque wrench, OBD-II scanner.
Ensure the vehicle is parked on a level surface and engage the parking brake.

2. Remove Wheels

Loosen lug nuts with a lug wrench while the vehicle is on the ground.
Use a jack to lift the vehicle and secure it with jack stands.
Remove the wheels to access the braking system.

3. Inspect and Replace Brake Components

Inspect Brake Pads and Rotors:
- Check for uneven wear on brake pads.
- Measure rotor thickness with a micrometer; replace if below minimum specification.
Replace Brake Pads:
- Remove caliper bolts and slide the caliper off the rotor.
- Remove old brake pads and install new pads, ensuring they are properly seated.
Replace Brake Rotors (if necessary):
- Remove the rotor by removing any retaining clips or screws.
- Install the new rotor, ensuring it is aligned correctly.

4. Inspect Suspension Components

Check control arms and bushings for signs of wear.
Replace any worn or damaged components as necessary.

5. Reassemble and Torque Components

Reinstall the wheels and hand-tighten the lug nuts.
Lower the vehicle and torque the lug nuts to the manufacturer’s specifications.