why does my Honda Accord shake when I brake at high speeds

Honda Accord 9th Generation (2013-2017)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

555 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 brakes in Honda Accord at high speeds. 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 use jack stands when working under a vehicle.
•Allow brakes to cool before handling.

Symptoms

•Steering wheel vibrates during braking
•Vehicle pulls to one side when braking
•Brake pedal feels pulsating or uneven
•Increased stopping distance
•Possible unusual noise from brakes (e.g., grinding or squeaking)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for thickness and uneven wear by removing the wheel.
3
Examine wheel alignment and tire condition for uneven wear patterns or damage.
4
Test brake calipers for proper operation and signs of sticking.
5
Verify lug nut torque and inspect for any loose wheels.
6
Scan for any error codes related to the Anti-lock Braking System (ABS) 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
•Tire iron
•Dial indicator
•Brake cleaner
•Brake caliper tool
•Torque wrench

Parts Required

•Brake rotors (if warped)
•Brake pads (if worn)
•Brake caliper lubricant

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for thickness and uneven wear by removing the wheel.
3
Examine wheel alignment and tire condition for uneven wear patterns or damage.
4
Test brake calipers for proper operation and signs of sticking.
5
Verify lug nut torque and inspect for any loose wheels.
6
Scan for any error codes related to the Anti-lock Braking System (ABS) using an OBD-II scanner.

Solution

1. Preparation

Gather tools and materials: jack, jack stands, tire iron, dial indicator, brake cleaner, and replacement parts if needed.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery if working on electrical components.

2. Inspect and Replace Brake Rotors

Step 1: Remove the wheel using a tire iron.
Step 2: Use a dial indicator to measure rotor runout. If warping exceeds manufacturer specifications, proceed to replace.
Step 3: Remove the caliper bolts and slide the caliper off the rotor. Support it without stretching the brake line.
Step 4: Remove the rotor from the hub. If rusted, gently tap it with a rubber mallet.
Step 5: Install the new rotor, ensuring it is clean and free of grease.
Step 6: Reinstall the caliper and torque bolts to the manufacturer's specifications.

3. Replace Brake Pads (if worn)

Step 1: Remove the caliper as described in the rotor section.
Step 2: Remove the old brake pads from the caliper bracket.
Step 3: Compress the caliper piston using a brake caliper tool.
Step 4: Install new brake pads ensuring they fit snugly into the caliper bracket.
Step 5: Reinstall the caliper over the new pads and torque to specification.

4. Check Wheel Alignment

Step 1: Inspect for uneven tire wear or damage.
Step 2: If needed, take the vehicle to a professional for alignment adjustments.
Step 3: Ensure all lug nuts are torqued to the manufacturer's specifications.