why does my Genesis G70 shake when I brake

Genesis G70 1st Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

507 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 issues 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 to prevent accidental activation.
•Allow the brakes to cool before handling any components.

Symptoms

•Steering wheel shakes during braking
•Vehicle pulls to one side when braking
•Increased stopping distance
•Brake pedal pulsates
•Unusual noise from brakes when applied

Diagnostic Steps

1
Inspect brake pads for wear and unevenness using a caliper gauge.
2
Check rotor condition for warping or scoring by measuring thickness with a micrometer.
3
Examine wheel alignment and balance using a wheel alignment machine.
4
Inspect suspension components for wear or damage, including control arms and bushings.
5
Check tire pressure and tread wear for uneven patterns.

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

•Socket set
•Torque wrench
•Jack and jack stands
•Micrometer
•Brake cleaner
•Bungee cord

Parts Required

•Brake pads
•Brake rotors
•Brake fluid (if needed)

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Diagnostic Steps

1
Inspect brake pads for wear and unevenness using a caliper gauge.
2
Check rotor condition for warping or scoring by measuring thickness with a micrometer.
3
Examine wheel alignment and balance using a wheel alignment machine.
4
Inspect suspension components for wear or damage, including control arms and bushings.
5
Check tire pressure and tread wear for uneven patterns.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Gather necessary tools and parts.

2. Remove Wheel

Loosen lug nuts with a socket wrench.
Lift the vehicle with a jack and secure it with jack stands.
Remove the wheel to access the brake components.

3. Inspect and Replace Brake Pads

Remove the caliper bolts using a socket wrench.
Slide the caliper off the rotor and secure it with a bungee cord to avoid straining the brake line.
Remove the old brake pads and inspect for uneven wear; replace if necessary.
Install new brake pads ensuring they are properly seated.

4. Inspect and Replace Rotors

Measure rotor thickness using a micrometer; replace if below manufacturer specifications or if warped.
If replacement is needed, remove the rotor by removing the retaining screws and sliding it off the hub.
Install new rotors and torque the screws to manufacturer specifications.

5. Reassemble Components

Reattach the caliper over the new pads and rotor, ensuring it is aligned correctly.
Tighten caliper bolts to the specified torque value.
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and then torque the lug nuts to the specified value.

6. Final Inspection

Perform a visual inspection of all components for secure installation.
Check brake fluid level and top off if necessary.