Weird Idle surge
03-14-2003, 01:26 PM
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Weird Idle surge
Sup guys/gals..my friend has a 01 Tahoe and when the truck comes to a stop and is idling, the truck starts surging and acting like its going to die. My first thought was tps but I thought I'd post on here and get some ideas from people who actually own these vehicles. Thanks for any input!
03-14-2003, 07:50 PM
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Re: Weird Idle surge
It could be a vacuum leak but, I believe it's the IAC(Idle Air Control) valve. They get carboned-up/sticky and let too much air in at idle rpms. I d/k about your specific one but all EFI vehicles have them and your problem is common. Usually, you can just remove it and soak /flush it with a solvent and it will be OK. If cleaning it doesn't help or last, replace it.
Dan
Dan
03-14-2003, 07:57 PM
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Re: Weird Idle surge
Do 01's have egr??? if they do, when I shaved the egr tube on my 00 the O gasket din't sit right and it idled like $hi+... Maybe sum how that gasket moved and isn't sittin right, once I was moving my truck would accelerate by it's self fixed the O gasket on the egr problem solved... Good luck
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