Author Topic: Starting and reving to 3-4 Grand on its own?  (Read 881 times)

Offline sparx

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Starting and reving to 3-4 Grand on its own?
« on: 06/11/09 - 05:46PM »
Some times my engine will start up fine, others times it will rev up to 3 or 4 rpms and set there for a while so i shut it off. Any ideas what it could be?
Yep, I'm a Jeep Cherokee person

Offline LoneWolf

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Re: Starting and reving to 3-4 Grand on its own?
« Reply #1 on: 06/11/09 - 06:00PM »
What kind of motor?

Check for vacuum leaks first... also post up any codes that it's giving out.
EVERY NORMAL MAN MUST BE TEMPTED AT TIMES TO SPIT ON HIS HANDS, HOIST THE BLACK FLAG, AND BEGIN SLITTING THROATS.

Offline sparx

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Re: Starting and reving to 3-4 Grand on its own?
« Reply #2 on: 06/11/09 - 07:30PM »
good ol' 4.0, Ok I will check for leaks to night. i will scan it when i get my scanner back for any codes.
Yep, I'm a Jeep Cherokee person

Offline LoneWolf

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Re: Starting and reving to 3-4 Grand on its own?
« Reply #3 on: 06/12/09 - 12:51AM »
there's an idle speed controller that works off of vacuum, but it could be that piece itself.
EVERY NORMAL MAN MUST BE TEMPTED AT TIMES TO SPIT ON HIS HANDS, HOIST THE BLACK FLAG, AND BEGIN SLITTING THROATS.