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Originally Posted by drdd
ever replaced or checked oxygen sensors?
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I have not checked or replace. How exactly do you go about checking an O2 sensor?
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Originally Posted by drdd
vacuum lines? ... I recently found some on my 97 Jimmy that were completely dry rotted out
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Checked, checked, rechecked. I had one that came up from the wheel well very near the battery that was clogged. Fixed. Still idleing rough.
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Originally Posted by drdd
you might also try the "screen" type of EGR gasket ... some on this forum recommend it, some don't. It seems to me that the screen keeps chunks of carbon from getting into the EGR but not always from blocking the passage
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EGR was fine. No immediate concern, just a little surface carbonizing, and no clogs in the intake.
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Originally Posted by drdd
do you have an air pressure sensor on this vehicle? (MAP ?) if so, have you cleaned it?
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I don't know if this model does have a air pressure sensor or not, and if it does, I have no idea where it's at. I've also been trying to locate an Idle Air Control Valve with no luck. Any ideas or knowledge would be appreciated.
This problem, literally, just happened. One second it was fine, the next it was idling horribly, stalling, ect. It's not like it was a gradual issue, and it only occors after the vehicle has been running for more than 10-15 minutes. PLEASE HELP!!!!!!