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Old 08-07-2010, 05:58 PM   #1
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High idle after starting

I've got a 2002 Wrangler with a 4.0. It's got about 100k miles on it. Recently (past few weeks) it's been idling high right after starting it up cold. And the last couple times I've started it, the RPMs have been jumping all around while it's warming up. Once it's warmed up, it seems to run fine.

Any ideas what to look at?

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Old 08-07-2010, 05:58 PM   #2
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TPS maybe?

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Old 08-07-2010, 06:01 PM   #3
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I'd check the IAC (Idle Air Control) valve before the TPS... If it's dirty you'll have a lot of fluctuation like that. I think there is a write-up on it somewhere. There are a couple torx screw's holding it in.
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