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1991 Chevy Cavalier rs

Tiny
HOLLIE0677
  • MEMBER
  • 1991 CHEVROLET CAVALIER
Hi all I have a 1991 chevy cavalier rs with 64000 miles on dash and my issue with my car is when I hit the brakes it shakes really bad then dies I have had a tune up I have replaced the fuel filter and the air filter I have also cleaned the carb and fuel injectors I am not sure on what else to do so someone please help
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Friday, November 23rd, 2007 AT 3:38 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

I would be checking the vacuum check valve and the brake booster, when you brake the booster is activated via the master cylinder and engine vacuum is applied to operate the booster, if the check valve or booster is faulty excess vacuum is drawn from the manifold and engine stall can occur. Quick check is to remove the booster vacuum line at the manifold and block up. DO NOT DRIVE CAR>> Operate brakes, pedal will be very hard (no Vacuum assist) and if engine idles OK you have found the problem.

Mark (mhpautos)
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Friday, November 23rd, 2007 AT 5:02 AM

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