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1992 Grand Am

Tiny
TKLINCK
  • MEMBER
  • 1992 ALL OTHER MAKES ALL OTHER MODELS
I have a 92 Grand Am, 6 Cylinder that has an intermitten idle. By this, I mean the engine revs up, the back down causing it to almost stall, and sometimes stall it out. I've done full tune-up on it, reset timing, replaced oxygen sensor and was checking into the MAP sensor, Knock sensor or IAC valve. Any ideas of where to start?
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Thursday, January 19th, 2006 AT 8:09 PM

2 Replies

Tiny
TKLINCK
  • MEMBER
  • 8 POSTS
Or could it be the Throttle Position Sensor?
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Thursday, February 2nd, 2006 AT 8:15 AM
Tiny
CHEVY350GUY
  • MECHANIC
  • 109 POSTS
First clean as far in to the throttle chamber as you can. Then remove iac valve and clean it's port. If idle remains the same I would start with the iac valve because you said it happens when you are at idle.
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Thursday, February 2nd, 2006 AT 10:09 AM

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