when i brake i find car shaking but when ii begin driving it back to normal what could this be?

2001 PONTIAC AZTEK
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ANDREWMOLIVER
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  • 1 POST
i have a pontiac aztek and it recently had a new computer put in due to how i was braking at a red light and the car would suddenly make an acceleration noise then the reving would go back down. and so on. now everytme i stop at a light, while pressing brakes, the car begins to shake but when you let go of the brakes it runs and shaking stops. what could the problem be
Apr 26, 2012 at 9:55 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Suspect faulty vacuum brake booster
Apr 26, 2012 at 9:57 AM
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