C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Brake pedal is hard

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Old Oct 15, 2002 | 01:26 PM
  #1  
Kehrer923's Avatar
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From: Rockwall TX
Default Brake pedal is hard

what would cause me\y pedal to be hard ? all vacum lines are still connected etc...
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Old Oct 15, 2002 | 01:36 PM
  #2  
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From: Water Winter Wonderland
Default Re: Brake pedal is hard (Kehrer923)

Oh oh. Sounds like your vacuum booster isn't working.

1) It's under the hood, on the driver's side. Check to see if the vacuum line (about a 1/2" black hose) is securely connected to it.

2) If #1 OK, then borrow or buy a small hand-held vacuum pump w/guage, hook it up to the booster, pump it up, and see it it "holds".

If it's the booster, you're out a couple hundred bucks. They're not too bad to replace, except for the two bolts inside the car under the dash are a little hard to get at. Don't be tempted to buy a cheap booster at your local parts store, I've tried two, each lasting a couple months longer than the 1 year warranty. The genuine GM one from the dealer is the way to go, in my opinion.

Good lucK!
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Old Oct 15, 2002 | 01:58 PM
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Default Re: Brake pedal is hard (Kehrer923)

bad brake booster
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Old Oct 15, 2002 | 02:10 PM
  #4  
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From: Rochester MI
Default Re: Brake pedal is hard (Kehrer923)

Please, define "hard." Is it so hard that it is difficult to drive the car, or actually annoying. My brake pedal has always been much more firm than my buddies '95, but I didn't think that there was a problem.
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Old Oct 15, 2002 | 02:12 PM
  #5  
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From: Rochester MI
Default Re: Brake pedal is hard (ELEVENS)

When you say pump up the vacuum pump ... how much vacuum should it hold?
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Old Oct 15, 2002 | 10:00 PM
  #6  
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From: Rockwall TX
Default Re: Brake pedal is hard (maize)

like pedal being hard as it is rock hard to push down, during everydaydriving
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