what is broke?

1998 CHEVROLET SILVERADO
180,000 MILES
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SDOZIER
  • MEMBER
  • 1 POST
1998 silverado k1500 5.7L. hissing/vacumm leak noise when pushing on brake pedal. pedal feels hard at times. replaced master cylinder but no fix. removed check valve and had good suction on valve.
Oct 9, 2012 at 6:15 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
brake booster is bad, it needs to be replaced.

Roy
Oct 9, 2012 at 6:19 PM
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