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

517 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 brake shaking in Genesis G70. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the brakes to cool before handling components.

Symptoms

•Steering wheel shakes when braking
•Vibration felt in the brake pedal
•Vehicle pulls to one side during braking
•Uneven wear on brake pads or rotors
•Increased stopping distance

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear.
2
Check brake pads for thickness and even wear patterns.
3
Examine suspension components for wear or damage (control arms, bushings).
4
Verify wheel alignment and balance.
5
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
•Jack stands
•Lug wrench
•Torque wrench
•Brake cleaner
•OBD-II scanner
•Brake caliper tool

Parts Required

•Brake rotors (if warped)
•Brake pads (if worn)
•Suspension components (if damaged)

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Solution

1. Preparation

Gather tools: jack, jack stands, lug wrench, torque wrench, brake cleaner, and OBD-II scanner.
Ensure the vehicle is on a flat surface and secure it with wheel chocks.
Disconnect the battery if working on electronic components.

2. Inspect and Replace Brake Rotors

Sub-steps:
1. Loosen the lug nuts on the front wheels.
2. Raise the front of the vehicle using a jack and secure it with jack stands.
3. Remove the front wheels.
4. Inspect the rotors for warping using a dial indicator or by checking for uneven surfaces.
5. If warped, remove the caliper (remove caliper bolts) and hang it securely without stressing the brake line.
6. Remove the rotor by unscrewing the retaining screws or tapping it gently if stuck.
7. Install new rotors, ensuring they are seated properly and torque to manufacturer specifications (usually around 80-100 ft-lbs).

3. Inspect and Replace Brake Pads

Sub-steps:
1. Remove old brake pads from the caliper bracket.
2. Inspect for even wear; replace if worn unevenly.
3. Apply brake grease to the backing of the new pads and install them into the caliper bracket.
4. Compress the caliper piston using a brake caliper tool if necessary before reassembly.

4. Check Suspension Components

Sub-steps:
1. Inspect control arms, bushings, and ball joints for wear.
2. Replace any damaged or worn components using appropriate tools (socket set, breaker bar).

5. Wheel Alignment and Balancing

Sub-steps:
1. After reassembling the brakes and wheels, take the vehicle to a professional service for a wheel alignment.
2. Have the wheels balanced if any vibrations persist.