Air in lines or master cylinder?
#1
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Car: 91RS
Engine: 305tbi
Transmission: 700R4
Air in lines or master cylinder?
Ok someone gave me a camaro that's been sitting a couple years it's not pretty but how can I turn down a free camaro. It was parked it because the brakes were shot and they didn't feel like spending the money to have it fixed.
The driver side rotor pretty much disintigrated, it seperated and the outside half was completly gone. They kept driving it like that a while and the caliper seized up pretty quickly. When I got it the pedal would go right to the floor but it would still stop (poorly) and they said it was like that when parked.
Now the car has new pads, rotors, and calipers. I bleed the heck out of the lines having someone work the pedal with me opening and closing the bleeder. I put about 1.5 of the bigger bottles of fluid through it and I still can't get any pedal. The only way to get it is if I pump it up I can get a very firm pedal.
Couple of thoughts.
Why would the pedal go to the floor before I fixed it? The caliper was frozen but not leaking so the system was still sealed and shouldn't have taken on any air.
If their was air in the system why would I be able to pump up the pedal?
What are the chances of the master happening to go bad at the same time the front brakes are shot and changed.
The driver side rotor pretty much disintigrated, it seperated and the outside half was completly gone. They kept driving it like that a while and the caliper seized up pretty quickly. When I got it the pedal would go right to the floor but it would still stop (poorly) and they said it was like that when parked.
Now the car has new pads, rotors, and calipers. I bleed the heck out of the lines having someone work the pedal with me opening and closing the bleeder. I put about 1.5 of the bigger bottles of fluid through it and I still can't get any pedal. The only way to get it is if I pump it up I can get a very firm pedal.
Couple of thoughts.
Why would the pedal go to the floor before I fixed it? The caliper was frozen but not leaking so the system was still sealed and shouldn't have taken on any air.
If their was air in the system why would I be able to pump up the pedal?
What are the chances of the master happening to go bad at the same time the front brakes are shot and changed.
#2
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Car: '88 Camaro
Engine: 2.8L - V6
I didn't see any mention to you bench bleeding the mc. Have you done that? If not, give that a try...then rebleed the system after you have done the mc...chances are you still have a lot of air in the mc...you'll never get it out unless you bench bleed it.
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Car: 92 Camaro B4C 350
Engine: 350
Transmission: T5
its not that there is air in the system with air you would still have pedal movement but it would be spongy
pedal sponginess += air in system
your problem may be linkage from the brake pedal to the vacuum booster or the vacuum booster itself, you might just want to replace the booster, oh yeah you need to have the engine running to have any vacuum boost so if you didnt have it running when trying it before it could be because you had no vacuum
so first thing i would do is test the booster with the engine running, check pedal linkage, and lastly... replace booster
hope it helps
tim
pedal sponginess += air in system
your problem may be linkage from the brake pedal to the vacuum booster or the vacuum booster itself, you might just want to replace the booster, oh yeah you need to have the engine running to have any vacuum boost so if you didnt have it running when trying it before it could be because you had no vacuum
so first thing i would do is test the booster with the engine running, check pedal linkage, and lastly... replace booster
hope it helps
tim
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Car: '88 Camaro
Engine: 2.8L - V6
Originally posted by PyRo9862
The system was never empty though, how would I end up with air in there?
The system was never empty though, how would I end up with air in there?
its not that there is air in the system with air you would still have pedal movement but it would be spongy.
pedal sponginess += air in system
pedal sponginess += air in system
Just my $.02
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