answers
6 Answers
-
-
zaerod 3/25/2010Now that i have changed my brake booster im not getting the brakes to work at all they feel spongy and its not stopping the car at all. what should i do now?
-
HouseCallAuto 3/25/2010There is a check valve where the vacuum hose is attached to the booster, possible bad check valve. Secondly, when you replaced the booster you had to remove the master cylinder. Most vehicles have a round seal that goes in the front of the booster over where the pushrod is and that seal can fall out without you seeing. If you leave it out you will have little power brake function. Thirdly, did you have any reason to open any of the hydraulic brake lines where air would get in? Did you disconnect the line that go to the master cylinder or leave them connected while you replaced the booster?
Kevin -
zaerod 3/26/2010ok kev i got you. I do remember a round black plastic seal now only if i can find it. To answer your questions yes i had to disconnect the brake lines off the master cylinder because it was hard for me to get the brake booster out without doing so. Did i ruin the master cylinder?
-
HouseCallAuto 3/26/2010No, the master is OK, it is just that you should bleed the air from the 4 wheels when you reinstall the master or you will likely have a pedal that was not as good as before you took it apart. I was just trying to isolate the cause of your brakes not working. You could have left out the seal and/or the brake pedal function would be affected by air in the system. So there are two reasons for your brakes to feel terrible.
Kevin -
jeepguyracing 4/4/2010start bleeding them from the right rear then left rear then passenger front then drivers front.You can do it yourself with a one man bleeder.cost like $10.00 at pepboys.
