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Stalling problem

Tiny
ELLYGREEN
  • MEMBER
  • 1999 PONTIAC BONNEVILLE
  • 250,000 MILES
My car has been stalling in low speed AREAS NEVER on the express way. I have gutted the catalytic converter I was told that was the problem it was clogged bad but my car is still stalling now stalling more often. When it stalls my brake lock up and cant break I don't know what to do I have 3 kids that travel in this car and very little money I can not just hire a mechanic and I have to get to work please help
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Monday, May 20th, 2013 AT 2:45 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuelpressure first. Auto parts scan for free
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Monday, November 5th, 2018 AT 7:07 PM
Tiny
ELLYGREEN
  • MEMBER
  • 2 POSTS
I have now also changed the air filter the idle air control valve an have used sea foam to clean injectors the only other thing I know to try is spark plugs. Will a bad alternator cause is problem? I know the break are not locking up. An when it starts to stall I can sometimes give it gas and it will come out of it.
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Monday, November 5th, 2018 AT 7:07 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Do what I said in first reply and also clean the throttle plate on both sides with choke cleaner.
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Monday, November 5th, 2018 AT 7:07 PM

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