help with my brake problem?!? (1 Viewer)

[reece]

Ok... Here's the issue:

I had for a while classic signs of a failing booster: intermittent hard and then regular pedal travel. Then, almost overnight, my pedal goes softly all the way down. If I pump it, it comes back to almost normal, but doesn't hold and then slowly releases all the way down.

I swapped out the booster, bled everything well, and noticed absolutely no difference. What gives? is it the master cylinder? any ideas?

 

[Marc311]

That sounds very similar to when my master cylinder went on my Jeep. The piston was losing its seal, but if you pumped it, it would come back.

 

[Pighead]

That sounds exactly like a master cylinder...but you should rule out a leak somewhere else before buying a new one.

 

[cruiserpants]

X3 on the master cylinder - mine had the same symptoms. Replaced the unit and everything was mo better...

 

[Civil1]

ditto the above, might also check that the booster doesn't have any fluid in it.