Help
I have an '03 Monte Carlo with a 3.4L. When the engine is warm and I am stopped at a stop light, the idle drops just below 600 rpm and then will shoot back up to 850-900 rpm. When the idle drops the car shutters and feels like its going to stall, but has not yet stalled. I don't know what is causing this issue. Does anyone have any ideas?
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2003 Idle Problem
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#2
- David Hasselhoff
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Posted 25 March 2011 - 05:34 PM
could be as simple as ur iac (idle air control) valve. could be sticking due to excessive carbon deposits etc, and the computer tries to mudul8 it, but the carbon buildup is getting in the way perhaps...i think it should get 1.5-10 volts or so to the terminals. easy to change also. hope that helps
#3
- Respect my Authoritay!
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Posted 27 March 2011 - 10:50 PM
Lots of things could be wrong. IAC, as stated, MAF, MAP, plugs, wires, fuel pressure, dirty throttle body, vacuum leaks, the list goes on and on...
'96 Monte L67 - Ported heads | Full 3" Exhaust | Ported TB | 180* T-stat | 104's | HAI | UDAP | SSPlog&Ported Rear | P&P Gen III | Walbro | AFC |
'93 Prelude H22A1 - Header | CAI | 2.5" SS Exhaust |
http://usatyourservice.webs.com | http://www.expertpcnc.com
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