The brake fluid is full but the brake pedal goes to the floor

JOLONG777

MEMBER
2000 HONDA ACCORD
2.3L
4 CYL
FWD
AUTOMATIC
378,000 MILES

Can anyone tell me how I can fix my brakes. The brake fluid is full but the brake pedal goes to the floor. What things do I need to check and is it something that I could probably do myself. Hopefully not a lot of money. I have a 2000 Honda accord 4 cyl.2.3 L LX with disc brakes not abs.

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

Besides having low fluid, the brake pedal can go to the floor for having air in the brake lines, leak in the system or a faulty master cylinder.

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

First make sure there are no leak in the brake system. Inspect the hoses and lines, check the brake calipers for leaks.
Next step would be to bleed the brake system. This will purge out any air that might have been trapped inside.

Here is a helpful guide on how to bleed the brakes:

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

After bleeding the system, if the issue still exists then it is likely a faulty master cylinder and need to be replaced.

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

I have attached the instruction of brake bleeding and master cylinder replacement and adjustment procedures below.

Please let me know if you have any questions.
Thank you.

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