Question about 1996 GMC Sierra

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My truck goes into gear without pressing the brake pedal

The truck shifts fine but it isnt suppose to go in gear without pressing the brake pedal it does this when its on or off

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 84 Answers

SOURCE: EMERGENCY BRAKE PEDAL GOES DOWN TO THE FLOOR WHEN ENGAGED

sounds like you have a worn set of park break shoes. they are located inside /behind the read rotors. if you remove the rotor and the shoes look fine then you can adjust them with the little star gear located on the bottom of the brake shoes.

Posted on Apr 28, 2009

  • 74 Answers

SOURCE: automatic transmission shifter does not need brake to engage

your not supossed to be able to go from drive to reverse w/o pressing the button their mest be something wrong with your shifter consoule called saftey neutral switch

Posted on Jun 18, 2009

SOURCE: Power brakes not working

No such thing as vacuum lines to the master cylinder. You do have a vacuum line on the brake booster (power assist). When you step on the pedal do you hear a whoosing sound down by your pedal. This is a leaking Booster. Needs replacement.

When you step on the brake does the engine rpm change. This is a leaking check valve (one way air valve).

Posted on Jul 17, 2009

iambanshee74
  • 3489 Answers

SOURCE: brake pedal goes to floor by itself when truck is started

the vacuum booster for the master cylinder should be looked at. ive done this for over 20 years and i cant say ive ever heard of this. does this occur ONLY when the truck is started? do you have a pedal when the truck is off? please respond.

Posted on Dec 28, 2009

  • 45 Answers

SOURCE: brake pedal goes to floor even when truck isnt on.

Did you bench bleed your master cylinder before you installed it? If not you may not be able to purge the air from it.

George

Posted on May 30, 2010

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