Why the **** won’t my rear brakes work??

[hatzie]

Originally Posted by c30

I would have replaced the rubber hose to the axle in a heartbeat going from past experience.
I will never buy another chevy truck with the hydro boost system. Had a 2001 C30 and never did get the rear brakes working. Even took it to the local Chevy truck dealership and they could not get it to work.
This truck had the load sensing valve inline to the rear brakes. I pleaded with the dealership to just bypass the frickin thing, but they would not alter the factory system. And have you ever seen all the leakage from the hydro boost, under the hood?
Went through front brakes alot before I got rid of that POS.
Dump the hydro boost!

I have a 2005 K2500 T800 & 2000 C2500 T400 with stock hydroboost that works great.

My 1976 K20 had K30 hydroboost brakes and that worked great as well.

None of my trucks have leaks from the hydroboost.

The dealership techs that can't get the GMT800 brake system to work properly are darn poor excuses for techs. If the hydroboost is leaking then it needs to be rebuilt.