why does my Honda Accord shake when I brake from high speed?

Honda Accord 10th Generation (2018-2022)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

567 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 when braking in Honda Accord. 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

•Always disconnect the battery when working on electrical systems.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Steering wheel vibration during braking
•Pulsating brake pedal feel
•Vehicle shakes noticeably at high speeds when brakes are applied
•Uneven brake wear or scoring on brake rotors
•Possible noise such as grinding or squeaking when braking

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for wear and thickness; replace if below manufacturer specifications.
3
Examine brake calipers for proper operation and any signs of sticking or seizing.
4
Inspect wheel bearings for play or damage which may contribute to vibrations.
5
Verify tire balance and condition, looking for uneven wear or damage.
6
Check suspension components for wear or damage that could exacerbate vibrations.

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
•Dial indicator
•Brake cleaner
•Torque wrench

Parts Required

•Brake rotors
•Brake pads
•Caliper shims and clips (if necessary)

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for wear and thickness; replace if below manufacturer specifications.
3
Examine brake calipers for proper operation and any signs of sticking or seizing.
4
Inspect wheel bearings for play or damage which may contribute to vibrations.
5
Verify tire balance and condition, looking for uneven wear or damage.
6
Check suspension components for wear or damage that could exacerbate vibrations.

Solution

1. Preparation

Gather tools: jack, jack stands, lug wrench, dial indicator, brake cleaner, torque wrench.
Ensure the vehicle is parked on a flat surface, and the engine is off.

2. Raise the Vehicle

Use a jack to lift the front of the vehicle.
Secure with jack stands for safety.
Remove the front wheels using a lug wrench.

3. Inspect and Replace Brake Rotors

Inspect Rotors: Use a dial indicator to measure rotor runout. If warping exceeds specifications, proceed to replace.
Remove Calipers: Unbolt the caliper from the bracket and hang it using a wire to avoid strain on the brake line.
Remove Rotors: Remove any retaining screws and slide the rotor off the hub. Clean the hub surface.
Install New Rotors: Place new rotors onto the hub, ensuring proper seating. Torque to specifications (typically 70-100 ft-lbs depending on model).
Reinstall Calipers: Reattach the caliper to the bracket and torque bolts to manufacturer specifications.

4. Replace Brake Pads

Remove old pads from the caliper bracket. Inspect shims and clips for wear; replace as necessary.
Apply brake lubricant to the backing of the new pads and install them in the bracket.

5. Reassemble and Lower Vehicle

Reinstall the wheels and torque lug nuts to specifications (typically 80-100 ft-lbs).
Lower the vehicle and remove jack stands.

6. Test Brake System

Pump the brake pedal to seat the pads against the rotors.
Take the vehicle for a test drive to ensure proper function and confirm the shaking issue is resolved.