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1998 GMC Jimmy 1998 GMC Jimmy Brake Problem

Tiny
BOUTWELL_ANTHONY
  • MEMBER
  • 1998 GMC JIMMY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 17,000 MILES
Just recently my brakes are slow to work. The pedal goes down but their is a hissing sound, as soon as the brake is applied. Once the brake is applied the vehicle gradually comes to a stop but not a quick stop if needed. There is no brake fluid loss. No ABS warning lights are on. If its my master cyclinder can I just clean it out with out replacing the thing? I changed my pads about 6 months ago, is this Master Cyclinder something I can do myself. Thanks Tony in Dallas
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Friday, July 2nd, 2010 AT 10:40 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hissing sound when brake is applied-sounds like the power brake booster is leaking-check it
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Friday, July 2nd, 2010 AT 3:49 PM
Tiny
JOHNWELL
  • MEMBER
  • 2 POSTS
It did happen to my jimmy 96, I replaced my brake booster and everythings fine now.
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Monday, July 12th, 2010 AT 5:23 AM

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