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1995 Chevy Silverado 95 Chevy Truck idle rough and won't ru

Tiny
WISEGUY99
  • MEMBER
  • 1995 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 194,000 MILES
The truck starts fine but idles very rough. Under heavy throttle truck tries to rev up but can’t. If you press the gas pedal to the floor and hold it and then just let off, the engine dies. We have done the following in no order, removed the converter from the exhaust, tune-up, new gas, removed and cleaned the gas tank and replaced all fuel filters.
What could cause this? Remember no check engine light comes on.
Thanks for your help
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Wednesday, April 15th, 2009 AT 11:40 AM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
Check the TPS (throttle position sensor) and the IAC (idle air control) sensor. Also, make sure the exhaust is flowing at the tail pipe (something may be restricting the exhaust) and check for air intake restrictions like a clogged air filter ETC. ETC.
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Thursday, April 16th, 2009 AT 8:55 AM

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