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Unsteady Idle..

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Old 03-07-2007, 05:39 PM
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Default Unsteady Idle..

Hey guys I just did a tune up on the car, changed the plugs, and oil/filter and everything. But my car still kinda idles rough, when it sits at idle for a bit. Was wondering what it can be. No check engine light or anything. I just bought it, and It ran a bit rough on idle, but its intermittent. It would run good for 5 secs then just kinda stumble a bit. But nothing real bad to worry about I dont think. When I gas it theres no hesitation runs good, just when the rpms hit idle. It does it in gear as well as in neutral. Its an auto. Just losing a bit of sleep over it.. 66k miles on it. Figured it needed a tune up. But the idle is still a bit rough. Maybe cause its an 8 its supposed to do that? Any thoughts guys?
Thanks
Mike
Old 03-07-2007, 07:20 PM
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Well its hard to say with out seeing it stumble, but my TA does that and my friends camaro does it too. I dont think its anything to lose sleep over. I think it is a common problem. Someone told me when you start to see your engine shake its time for new motor mounts. That is just becsuse the OE ones are getting alittle soft. If it is a small stumble I would not wory about it.
Old 03-08-2007, 05:27 AM
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easy one....you change type of plugs or gap? even by a little?
Old 03-08-2007, 07:10 AM
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Clean your IAC valve.
Old 03-08-2007, 08:13 AM
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Originally Posted by Weezzer
Clean your IAC valve.
X2 or replace it.
Old 03-08-2007, 11:42 AM
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ive had a similar problem after my header install it ended up bein a cracked plug small hair line crack and it gave me a fit i pulled it twice before i saw the crack
Old 03-09-2007, 03:37 PM
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Mine was doing the same thing. Eventually the SES light came on. After getting that scanned, it was a bad o2 sensor. I just picked up some Bosch 13111's today. I'm installing these tomorrow.




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