help high idle
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Junior Member
Joined: Jul 2009
Posts: 85
Likes: 0
From: barberton ohio
Year: 1996
Model: Cherokee
Engine: 4.0 high output
okay i have a 96 xj 4.0 just did head gasket and now it idles at like 2300 dont know y and it jumps up if its in neutearl ????????????????????????
CF Veteran
Joined: Aug 2009
Posts: 1,047
Likes: 3
From: Hanover,Ont, Canada
Year: 1991
Model: Cherokee
Engine: 4.o
I would start by rechecking all my vac lines, sounds like a leak. besides that you could check the idle speed motor see if it has just stuck, or need cleaned etc.
CF Veteran
Joined: Mar 2009
Posts: 8,712
Likes: 2
From: Loomis,California
Year: 1987
Model: Cherokee
Engine: 242 inline six
Look at your motor standing at the front bumper. Your idle speed motor is under the air boot twards the front . It has two bolts that hold it on to the throttle body and a three wire clip going into it.Its round and silver.
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