Question about Cars & Trucks
Put a brake booster on bleed the brakes and they still go to the floor
Brake booster just helps lessen the effort to stop. You either have air in your system or a leaking line \,or caliper cylinder or wheel cylinder, look along frame rails and the inside of tires or wheels after pumping and holding the brake pedal. If there is no leak your master brake cylinder is bad and fluid by passing the seals.
Posted on Oct 19, 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
SOURCE: replacing my brake booster
go to the master cylinder and remove it from the booster, disconnect the vacuum line from the booster, then disconnect the brake plunger from your brake pedal inside the vehicle, then remove the booster mounting bolts from inside the vehicle then remove the booster, install in reverse order, once you install the master cylinder, you will need to bleed out any air in the brake system, hope this helps, let me know
Posted on May 23, 2009
SOURCE: Brake pedal goes nearly to
I would go with not bled correctly
The booster should hold up with a hard pedal until
you start the engine, then vacuum causes it to move
down when pressing on the brake
Posted on Sep 16, 2011
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