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1992 Chevy Silverado Hissing

Tiny
MARIOROLANDO
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 23,500 MILES
When the brake pedal is pushed a hissing sound comes from the pushing rod inside the cabin, the brakes do not work properly, looks like an air leak from a rubber seal, How can this be fix? Can I get a repair kit or need to replace the unit?
Wednesday, October 6th, 2010 AT 4:20 AM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

It will be quicker and easier to replace the brake booster as a unit, you should be able to gt a re-co change over unit, check with your local parts retailer.

Mark (mhpautos)
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Monday, February 22nd, 2021 AT 6:18 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
That hissing noise would indicate a vacuum leak within the brake booster and would require replacing it.
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Monday, February 22nd, 2021 AT 6:18 PM

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