i have a boosted d15 pushing 10lbs. it has done fine for three months but all the sudden the breaks started to grab by there self. after replaceing the master cyclinder and booster i come to fine out its the one way valve from the manifold to the booster. i replaced it with a orginal and it worked fine for about 10 minites and it did it again. so i went and got a heavy duty one from a truck, and the same thing happened. has anyone had this problem or know what i can do to fix it.


Modified by egcoupeautox at 3:41 PM 9/24/2005

 

did you connect a vacuum line before the check valve for the brake booster?

 

shorten the throw from the back of your brake pedal just a little bit

 

no the line is stright frome the booster to the manifold

 

you have to tee into the brake booster line before the check valve (inbetween the check valve and the intake manifold). Is this how you have it done?

 

no there is nothing between the booster and the manifold.