Cold idle problem

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Apr 5, 2004 | 09:36 PM

jfrank

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Joined: Oct 2002

Posts: 32

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From: Central PA

Cold idle problem

The idle on my 98 Explorer is acting odd when cold. It will start and go straight to 2000 rpm, then go down to 500 rpm and almost stall, then shoot back up to 2000. It cycles like this, but I always just give it the gas and go so it warms up, because when warm I don't have this problem. Any ideas on how to fix this?

Apr 5, 2004 | 10:28 PM

ltfox

Fleet Mechanic

Joined: Oct 2003

Posts: 1,764

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From: CentralEastern Utah

Check out the "sticky" on the IAC atop the forum. Sound like it could be a good possablity.

May 18, 2004 | 07:03 PM

sheaff44

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Joined: Dec 2003

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Exp44

Had the same problem,found out it was intake gasket,,,,O rings.Try spraying
some C R 56 around intake while running,if you hear it picking up rpm's.Then you may have found the problem.

Sep 6, 2004 | 08:45 AM

djf2729

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Joined: Jul 2003

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Hello from a close neighbor in Mechanicsburg!!

Did you ever figure out your problem? My 98 Explorer is doing the EXACT same thing. What a pain until it warms up!!

Thanks

Sep 6, 2004 | 08:53 PM

jfrank

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Joined: Oct 2002

Posts: 32

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From: Central PA

No, I ended up selling it at the dealer auction for half of what it was worth. I really think it was an intake gasket though, so I'd say that's a good place to look first. I was in Mechanicsburg once last year for work, that's a fairly nice town. I remember there being a central area that had a lot of nice stores and restaurants. Is that tool place still open?