why does my Honda Accord have a hard brake pedal

Solution

1. Preparation

• Gather tools and parts: OBD-II scanner, vacuum gauge, socket set, brake fluid.
• Ensure the vehicle is on a level surface and secure it with wheel chocks.
• Disconnect the negative battery terminal to prevent any electrical issues.

2. Inspect the Brake Booster

• Remove the engine cover if applicable for better access.
• Visually inspect the brake booster for any signs of cracks, corrosion, or fluid leaks.
• Check the mounting points for security and integrity.

3. Check the Vacuum Supply

• Locate the vacuum line connected to the brake booster.
• Inspect the line for any signs of wear, cracks, or disconnections.
• Replace any damaged vacuum lines with new ones.

4. Test the Brake Booster

• Connect a vacuum gauge to the brake booster vacuum port.
• Start the engine and allow it to idle, then observe the gauge.
• Ensure that the vacuum reading is within the manufacturer’s specifications (typically around 18-22 inHg).
• If vacuum is low, check for leaks in the intake manifold or replace the brake booster if necessary.

5. Inspect and Refill Brake Fluid

• Remove the cap from the master cylinder reservoir and check the fluid level.
• If low, top off with the manufacturer-recommended brake fluid type.
• Inspect the fluid for contamination or discoloration; replace if necessary.

6. Reassemble and Test

• Reconnect any components that were removed during inspection.
• Reconnect the negative battery terminal.
• Start the vehicle and press the brake pedal several times to ensure it feels normal.