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1991 Chevy Camaro 1991 Camaro runs very rough

Tiny
FRANKISCO
  • MEMBER
  • 1991 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
  • 14,200 MILES
My 1991 camaro rs 5.0 tbi carburated when I turn it on it turns on fine motor runs smooth as soon as I put it on drive and give it gas it might run very rough or hesitate to pick up it my not run at all when I give it gas and something might pop under car like a fart or it may run ok at times but most of the time is running rough on the street sometimes it has made a noise in the bottom of the car like if it farts like if somtimes pops it runs perfect in the highway at highspeeds. I have replaced the waterpump, gaspump, radiator, full tune up, and took the catylic converter out and put a straight pipe out I really dont know what else to replace might be a sensor or a injector please help this is frustrating I will appreciate it.
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Tuesday, April 6th, 2010 AT 11:24 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following-inspect and test all the following below:
1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.
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Tuesday, April 6th, 2010 AT 11:29 PM

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