Help! New hydroboost and now no brakes!?
#1
Help! New hydroboost and now no brakes!?
So i replaced the hydroboost on my 2001 ram and i cycled the steering both with the truck running and not running. Now my brake pedal goes to floor with zero resistance and will not return on its own at all. I did not undo any of the brake lines when i did the switch i don't think that i caused any air to get into the lines. What could be the problem? Could it be a bad hydroboost or a bad mastercylinder? Is there a way to test them? Please help. Thank you for the replys.
#2
Registered User
How about with the truck not running? If you can put the pedal down pretty easy with it off I'd imagine the master is no good. I do recall some time back someone had a similar experience and it was a bad hydroboost though. Good luck.
#3
Registered User
There is a diaphragm or something that you have to take from your old hydroboost unit and put in your new unit or the pedal will go to the floor. I had the same issue when I replaced mine. Just don't remember exactly what the part was.
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