C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

brake booster question

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Old May 25, 2009 | 09:44 PM
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F0RMULA
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From: west chester pennsylvania
Default brake booster question

A while back my brakes started getting harder and harder to work.
When I pushed the pedal, it sounded like an air leaking/purgeing noise.

The master cylinder had always had a small leaking issue due to worn rubber grommets, so i figured it just hit its point, so i replaced it.

In the process, i broke the brake booster check valve. bought a replacement and put it in. bled the brakes all the way around.

The brakes still sucked. Then yesterday after messing around with the check valve which seemed a little loose, the car is just *******.

It putters from rest, idling funny, and has a real shaky time accelerating...

I'm thinking the brake booster is shot. If it was, would this throw off the vacuums and cause my car to do this?


87 Coupe 4+3

Last edited by F0RMULA; May 25, 2009 at 09:47 PM.
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Old May 25, 2009 | 09:50 PM
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From: Merritt Ils Fl
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Yes. The booster is "powered"by engine vacuum, if your booster leaks to the point it degrades engine vacuum it can and will cause the issues you have.
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Old May 26, 2009 | 06:25 AM
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F0RMULA
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From: west chester pennsylvania
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thank you. all i needed to know.
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