Braking Issue - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-24-2008, 01:45 PM   #1
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Default Braking Issue

I'm having a problem with my brakes. There'* alot of travel on my brake pedal so I checked my brake fluid and it'* full, I then checked my pads,rotors and shoes and their also fine. I then bled the the system and still no change, But I noticed that when I step on the brake pedal I hear a whoosh sound(almost like air escaping) coming from the under the dash area of the car,so I think it may be the brake booster. Please any opinions on my problem would be greatly appreciated.
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Old 09-24-2008, 01:50 PM   #2
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I'd agree on the thought of a booster. There shouldn't be a whooshing. Any loss of braking like a bad master cylinder or harder braking?

The boosters job is to add the power to the power brakes.
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Old 09-24-2008, 02:04 PM   #3
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all I can say is the brake pedal doesn't feel very firm when I press down on it. But it'* the travel in the brake pedal that that'* making it hard to stop. I don't know if you have ever driven a car with badly worn brake pads and it seems like you have to push the brake pedal almost to the floor to stop the car,that'* what it feels like.
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Old 09-24-2008, 02:20 PM   #4
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If it is the booster how hard is it to change out and should change the master cylinder at the same time?
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