Idle Out of Control (IOC)!

[jeffcoslacker]

Originally Posted by tblake

its the last year they made them, they phased them out to start the impala in 2001. Why does that seem odd?

In 2000 when I bought the Impala, I actually wanted another Lumina, but they didn't have any, and said they wouldn't be getting anymore. They did say I could order one, but that Impala was sitting there screaming "Buy Me, Buy Me!"

[tblake]

wanna trade? I love impala's, I wish I had the kind of cash for one. The chevy garage in town has the nicest black Impala SS, I just drool over every time I drive by. But anyways, buck to the post, I would check the iac motor again, and make sure the plug and wires are in good shape, maybe exchange it (this doest work, can I exchange for another one) And see if that helps, maybe when you plug it in, spray the plug with wd40 or something, and make sure its seated right. Also I still think that there could be a vacuum leak somewhere, maybe get a vacuum guage hooked up and check for that. Your probably thinking "I;ve already tried all that", but thats all I have. Sorry strange one here. Good luck. Is it a constant very high idle, or does it increase very slowly, or is it like an idle like where someone has mashed the pedal to the floor. I had a high idle for a while in my 90 lumina, it wasn a pedal mashed high idle, but it was up there. It seemed to go away, so I thought nothing of it, sorry i cant be of better help. Good luck.

[tblake]

what about a throttle position sensor?

[starla3366]

Originally Posted by tblake

wanna trade? I love impala's, I wish I had the kind of cash for one. The chevy garage in town has the nicest black Impala SS, I just drool over every time I drive by. But anyways, buck to the post, I would check the iac motor again, and make sure the plug and wires are in good shape, maybe exchange it (this doest work, can I exchange for another one) And see if that helps, maybe when you plug it in, spray the plug with wd40 or something, and make sure its seated right. Also I still think that there could be a vacuum leak somewhere, maybe get a vacuum guage hooked up and check for that. Your probably thinking "I;ve already tried all that", but thats all I have. Sorry strange one here. Good luck. Is it a constant very high idle, or does it increase very slowly, or is it like an idle like where someone has mashed the pedal to the floor. I had a high idle for a while in my 90 lumina, it wasn a pedal mashed high idle, but it was up there. It seemed to go away, so I thought nothing of it, sorry i cant be of better help. Good luck.

Thanks tblake,

I still think there maybe a vaccum leak also. I didn't know of any tool that measures for vaccum leak. Do you have any idea of what it is called exactly and where I may be able to find/buy one?

Yes it is a constant idle, until I drive it for a while then it calms down. And it's a idle that's like a pedal about half way to the floor. but the throttle arm stays in the idle position. It does it right when I start it up, especially the first time i start it for the day.

Anyway, I am conviced there has to be a vaccum leak somewhere, unless someone else has any ideas

Thanks for the help,
tony

[cnilkyrclit]

i actually had the same symptoms in my lumina (93 eurosport 3.1 v6) i changed the iac, for about two weeks it was fine. then when i would start it up the rpm's would run about 2 1/2-3000 rpm's. i was told that the computer was confused, and i needed to reset it. unplugged the battery for about 5 min., started driving at about 40mph for roughly 10 min., then got in the freeway punched it to about 80mph. afterwards every seemed to smooth out. i never actually tried the relearn process, just usaully drive for a good twenty minutes at various speeds. good luck.

[tblake]

yeah, I think its just called a vacuum leak testor. Thats what i call it anyways. They may be kinda expensive, and there is a certain procedure for checking vacuum with one of these, I'm not exactly sure, someone knows on these boards, or else just have a mechanic friend do it. good luck

[starla3366]

For everyone that was involved with me troubleshooting this ridiculous gripe, I want to say thank you.

I told everyone I would not give up, and that is just what I did. I never gave up, and I fixed the problem.

This is what I did to TRY to fix this gripe:

Replaced:

IAC
Spark plugs
Spark plug wires
All three Coils
TPS
All Vaccum Lines

All this totalling Over $100

This is what I did to FIX this gripe:

Replaced:

MAP Sensor

Totalling $2 from junk yard



ONCE AGAIN, THANKS EVERYONE!!!!!!!


Now the God Damn Power steering Pressure line sprung a leak.
Caused me three stitches trying to get the line out. Check out my newest post.

[meuhus]

what part stores have an ecm tester
auto zone doesn't
i do not think napa does either
i'd like to know

[MarkB]

So The MAP eh? I guess that was just a guess? I'm going to give that one a try. Is you idle still good?

Cheers!