1998 GMC Jimmy 1998 GMC Jimmy Brake Problem

1998 GMC JIMMY
17,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
BOUTWELL_ANTHONY
  • MEMBER
  • 1 POST
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
Jul 2, 2010 at 10:40 AM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Hissing sound when brake is applied-sounds like the power brake booster is leaking-check it
Jul 2, 2010 at 3:49 PM
Avatar
JOHNWELL
  • MEMBER
  • 2 POSTS
It did happen to my jimmy 96, I replaced my brake booster and everythings fine now.
Jul 12, 2010 at 5:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.