95 olds 88 hesitates/stalls when hot - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-01-2011, 03:06 PM   #1
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Default 95 olds 88 hesitates/stalls when hot

Motor is a 3800 series 2 i changed the wires/plugs put a new iac sensor and a throttle positioning sensor in got my fuel pressure checked which was ok the problem is that the car seems not to have all its power from time to time if i remote start it, it will either cut off or idle rough untill it smooths out and thats on cold starts but when i drive it for say about 30 mins to 45mins non stop it seems to wanna hesitate/stall under a slight load from a stand still from a light or stop sign but the crazy part is it will idle fine like nothings wrong until i put a load on it and even then i have to jump on it so it wont cut off but when i let it sit for about a hour and drive it no hesitation or stall untill something heats back up could this be a ignition control module?? Also my temp gauge moves from under 200 to past 200 then on 200 would that factor into the hesitation/stalling thing? Mabe a cool and temp sensor?? Service engine code onlycame up as a knock sensor
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Old 05-01-2011, 03:15 PM   #2
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Unplug your MAF and drive without it. It will stumble at first but should smooth out. If it drives better then the MAF is bad.
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Old 05-01-2011, 03:19 PM   #3
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Ok coolbeans thanks.... Should i wait until it starts to act up or do it right off back
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Old 05-01-2011, 03:25 PM   #4
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Really wont mater. If you know it runs bad in the morning, then unplug it then and see if there'* any change. Just don't get on the gas hard without the MAF plugged in. Just drive normal.
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Old 05-11-2011, 04:11 PM   #5
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moved to it'* proper Mechanical Section. General Chat is for items that affect all platforms and "General Chat". It really helps the GearHeads, others with ownership of same/similar Models, the Forum regarding search bots, and our own internal search engine when we keep things in order. Thanx.
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