1998 Chevy Lumina brakes

1998 CHEVROLET LUMINA
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BSASS36
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1998 Chevy Lumina

the brakes barly work and when i push them in it makes a hissing noise almost like a vaccume leak and the noise comes from under the steering colume what could that be?
Dec 6, 2008 at 3:01 PM
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BUDDYCRAIGG
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You are correct about the sound of a vacuum leak.
The power booster for your brakes works off of vacuum.

It probably has a leak in the diaphragm.
it's the round thing the master cylinder is bolted to.
Dec 7, 2008 at 11:45 PM
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