my Genesis G70 is shaking when I brake, what could be the issue?

Genesis G70 1st Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

476 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 ensure the vehicle is securely lifted and supported before working underneath it.
•Disconnect the battery if working on any electronic components related to the ABS system.

Symptoms

•Steering wheel shakes or vibrates when braking
•Pulsation felt in the brake pedal
•Uneven or excessive wear on brake pads
•Noise during braking (squeaking or grinding)
•Vehicle pulls to one side while braking

Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear using a dial indicator.
2
Check the brake pads for thickness and even wear.
3
Examine the suspension components (control arms, bushings, and tie rods) for wear or damage.
4
Verify wheel alignment and balance.
5
Scan for any error codes related to the ABS 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
•Socket set
•Torque wrench
•Brake caliper tool
•Dial indicator

Parts Required

•Brake rotors
•Brake pads
•Any necessary suspension components (if damaged)

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Diagnostic Steps

1
Inspect the brake rotors for warping or uneven wear using a dial indicator.
2
Check the brake pads for thickness and even wear.
3
Examine the suspension components (control arms, bushings, and tie rods) for wear or damage.
4
Verify wheel alignment and balance.
5
Scan for any error codes related to the ABS system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and apply the parking brake.
Wear safety goggles and gloves.

2. Raise and Secure the Vehicle

Use a jack to lift the front of the vehicle.
Place jack stands under the vehicle for safety.
Remove the front wheels using a socket set.

3. Inspect and Replace Brake Rotors

Remove the brake caliper bolts with a socket set and hang the caliper using a bungee cord (do not let it hang by the brake line).
Remove the brake pads from the caliper bracket.
Unbolt and remove the brake rotor from the hub.
Inspect the rotor for warping using a dial indicator; replace if warped beyond specifications (usually 0.002 inches).
Install new rotors, ensuring they are clean and free of any oil or grease.
Torque the rotor retaining bolts to manufacturer specifications.

4. Replace Brake Pads

Install new brake pads into the caliper bracket.
Compress the caliper piston using a brake caliper tool to allow fitment of the new pads.
Reattach the brake caliper and torque the bolts to manufacturer specifications.

5. Inspect Suspension Components

Visually inspect suspension components for any signs of wear or damage.
Replace any worn or damaged bushings, control arms, or tie rods as necessary.

6. Reassemble and Lower Vehicle

Reinstall the front wheels and torque lug nuts to manufacturer specifications.
Remove jack stands and lower the vehicle.

7. Test Drive

Conduct a test drive to ensure that the braking issue has been resolved.

Tools Required:

Jack and jack stands
Socket set
Torque wrench
Brake caliper tool
Dial indicator

Parts Required:

Brake rotors
Brake pads
Any necessary suspension components (if damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Always ensure the vehicle is securely lifted and supported before working underneath it.
Disconnect the battery if working on any electronic components related to the ABS system.