93 grand Cherokee 4.0 erratic idle - JeepForum.com
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Unread 07-08-2014, 12:49 PM   #1
Registered User
1993 ZJ 
Join Date: Aug 2012
Posts: 190
93 grand Cherokee 4.0 erratic idle

Just started today stated it and the idle was going to 1000-200 rpms and when I put it in drive it was going down to 200 and felt like it was going to die. It kept bouncing up and down but it was ok while I was driving it.

Any help would be greatly appreciated.

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Unread 07-08-2014, 01:47 PM   #2
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1996 ZJ 
Join Date: Sep 2010
Location: coshocton, OH
Posts: 105
Try cleaning your IAC.
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Unread 07-09-2014, 12:30 PM   #3
Web Wheeler
1997 ZJ 
Join Date: Feb 2008
Location: Louisiana/Texas
Posts: 3,503
Agreed. Then run a little seafoam through your tank, for starters.
Cajun Recipes and Fishing tips

Words of wisdom, Posted by Zeejay:
"..it's not air, it is the opposite of air... suckage so to speak."

Stalling? Work through Zeejay's list
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