resetting a Brake Proportioning valve?

[bobboinge]

Originally Posted by bobboinge

I have a '94 K1500 blazer and had a problem like yours. I've seen guys jab the brake peddle and think the power booster was going to fly off. What I found to work is: make sure the brakes are adjusted, then slowly push the break peddle about half way and release. You may have to do this a few times. Slowly roll the truck backwards and push the peddle half way again. See what happens!!!!

pedal...pedal...pedal...What was I thinking?

[lianalet]

The book says to bleed the combination valve on my 1991 c1500 so I made a tool to push in the valve stem. Now the stem sticks out much further than before. Did I brake it? I replaced my master cylinder and now when I apply the brakes air is pushed into it. Bad master?

[rhandwor]

How did you bleed your master I would try a vacuum bleed. I've also used a pump oil can used only for brake fluid as oil will contaminate the fluid. A small hose to push on the bleed screw and pump fluid. You need to get the air out. You could also google Chevy C-10 brake proportioning valve 1991.

[Tech II]

Guys, check the date of this posting.....