Hello I purchased a 92 accord about 2 weeks ago for 500 bucks. When i was driving it the brake pedal dropped all the way to the floor with no brakes at all. At first a thought it was the master cylinder so i replaced it and bench bled it. It didn't fix my problem but afterwards I noticed a leak in the brake line to the rear passenger tire. I fixed the leak and when i went to bleed the back tires the bleeders broke. I eventually replaced the cylinders and bled all the brake lines. After I did get a little brakes back but the pedal still is extremely close to the floor. I'm not to sure what else to do if you have any suggestions please let me know.

 

How did you fix the leak? If you found one, it's possible there are more.

 

I cut the Line where it was good, connected the new line with a steel compression fitting and flared the other end connected to the tire. I've looked under the car while pumping the brakes several times and can't find any other leakes in the lines.

 

What do you mean "is extremely close to the floor"?

 

Hi, Luke--were you able to examine all the lines? Mine leaked even though they left no trace of brake fluid on the floor. Even a small leak can still cause air to be sucked back into the lines, so even then, you can bleed the brakes and have your brakes feel good for about 1-2 days until air returns to the line.

Is it correct that even after replacing part of the line and the master cylinder, that your pedal never returned to it's original position? Did your pedal ever firm up, or did it still feel soft/spongy after making your repair? There could have been some air left in the lines or even the master cylinder. When I bench bled my master cylinder it seemed to take forever to get all the air out of it. Also, even though you replaced the master cylinder, if you let it travel too far during the bleeding process, you could have damaged the seal, and that will cause the brake pedal to fall. I don't think it takes much to damage it.

My experience is strictly related to working on two older cars that I own--in the rust belt where brake components rust, seize, etc.--so I don't have any other suggestions other than to check everything again, and report back so one of the experts like Holmesnmanny can guide you! Good luck!