Brakes Hissing?

1999 JEEP GRAND CHEROKEE LAREDO
112,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MUSTANGMAN31
  • MEMBER
  • 1 POST
I have a 1999 Jeep Grand Cherokee Laredo and I have had numerous problems with it. About 2 weeks ago, I started to hear an awful hissing noise on the inside coming from to brake pedal. When the pedal is pressed, the noise goes away but as soon as the pedal is realesed the noise comes back. Also when the ignition is off, the pedal is impossible to press. Any suggestions as to what the problem may be? Thanks for any and all help.
Dec 1, 2008 at 4:24 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Yep, the problem is the brake booster has gone bad, here is how to change it out to help fix the problem. Check out the images (Below). Please let us know what happens.





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Dec 1, 2008 at 5:32 AM
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