Question about Cars & Trucks
My 88 dodge Dakota has new brakes ,wheel cyclinders . when driving the pedal goes to the floor, then the brakes come back.but it keeps doing this. could it be the booster or master cylinder?
It's the master cylinder, Theresa. It will need replacing, because the internal seals are not holding against pressure.
It is not a job for just anybody, but somebody with some experience in bleeding the master cylinder and then bleeding the individual wheel brakes could do it. It's a procedure for getting all air out of the system after replacing parts.
Posted on Aug 01, 2013
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Posted on Jan 02, 2017
Did you put fresh fluid in the master cylinder? I really think you still have air in the lines. To bleed manually, start with the bleeder the greatest distance from the master cylinder, car running, helper pushing down about half way on brake pedal and releasing 3 times, on 3rd time, holding pedal down to half way depressed point while you open the bleeder valve. Repeat until you are sure all air has been flushed out. Check master cyl reservoir level often, because if it gets low and you **** air into the system, you have to start all over again. Go to wheel next greatest distance from master cyl, repeat above, working your way to wheel closest to master cyl last.
Posted on Apr 12, 2009
it could be that the master cylinder is bad or the brake booster is bad also check the vacum hose going to the brake booster if it has a hole in it it will lose pressure and make the engine lose rpms
Posted on Aug 23, 2009
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