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Rough Idle on Start Up

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Old 02-18-2017, 07:55 AM
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
Default Rough Idle on Start Up

Hey guys new to the forum here. I have a 2000 xj, bought used off Craigslist with 130k on it. I've been driving it around for the past year and a half, and lately I have been noticing sometimes in start up it idles rough. As soon as I slip in in Drive, the shaking stops. It does not do this every time, so it's hard to pinpoint where it comes from, any ideas?
Old 02-18-2017, 08:51 AM
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
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When was it last tuned up? Also, you can start simple by cleaning the throttle body and IAC valve.

Last edited by rgr4475; 02-18-2017 at 08:53 AM.
Old 02-20-2017, 01:31 PM
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Year: 1996
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Engine: 4.0 I6
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Bad engine mount?
Old 02-20-2017, 02:11 PM
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Like the others have said, check engine mounts and IAC/throttle body. Also check vacuum lines to make sure none are cracked.

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