Hi i have put in a nice cam in my chevy Montle Carlo 400 small block .It a xtreme cam 284-296- 240 246 -507 510 i didnt have any brake problems before but now i have problems .It will not hold when i had my athere cam in it no problem at all but the cam was smaller. I bought a elctric pump for it it work good all the wire hook up right and all when i turn the key it pump and the brake work for a second .. but slowly the brake fall to the ground and no brake i put in new lines on one side it was leaking . im thinking i mit have hook up the electric pump wrong i did it both way .I hook it up to the intakemanfold to brake booster then pump no holding and then i tryed to hook the eletric pump to the booster same thing do you think my eletric pump was bad when i bought it need help on brake trying to get to track to test out my combo for the frist time..thank your
SOURCE: Bad Brakes
I would be looking at the ABS valve. one way to test the booster is to start the vehicle while you ae depressing the brake pedal, you should feel the brake pedal drop a little bit, this is a sign that the boostr is working properely. you may want to check to see if there is any air in your system as well.
hope that this helps.
SOURCE: bad brake booster
If you know for sure that the booster has failed, you need to unbolt the master cylinder from it, (sometimes you can move it away enough to not even disconnect lines.) Then unbolt the booster from the firewall, disconnect the pedal linkage if connected to booster. Remove & replace booster assembly and everything else you you took off. If you didn't have to remove master cyl you are done. If removed, bleed master before putting back into service!
SOURCE: i need a wiring diagram for for a 1979 chevy c30 1
check out autozone.com They might have what your looking for. Its helped me lots
SOURCE: need wiring diagram for 1971 chevy nova
having a problem with the wireing, i have no juice to the fuse box and to the ignition switch,no lights,dush lights or anything,
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