potasiumlegsman Posted June 10, 2003 Share #1 Posted June 10, 2003 im sorry this isn't for a Z car but i had no other place to go.is it posible to check if there is a hole in a brake booster while it is on the car. if you could give me some tests that i could do that would be great. anything is good, thanks guys Evan Link to comment Share on other sites More sharing options...
frank13 Posted January 17, 2004 Share #2 Posted January 17, 2004 Does the car run rough or at high Rpms at idle? Do you hear a loud hissing sound? Do the rpms change when you apply the brakes(while parked)? Disconnect the brake booster vacum line and plug. Does the car run normally? Do the rpms return to normal. Get a vacum pump/gauge ant apply vacum to the nipple or port of the vacum bosster. Does it hold vacum? If it does not it's leaking. :devious: Link to comment Share on other sites More sharing options...
Alan Pugh Posted January 17, 2004 Share #3 Posted January 17, 2004 With the engine off, deplete all the vacuum from the booster by pumping the brake pedal.Start the engine with your foot on the brake pedal and if everything is working your brake pedal should move towards the floor. Link to comment Share on other sites More sharing options...
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