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Idleing high issue

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Old Nov 20, 2012 | 03:47 PM
  #1  
RideRed264's Avatar
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From: Muskegon, Mi
Year: 1997
Model: Cherokee
Engine: 4.0
Default Idleing high issue

Alright, so today I decided to replace my ground wire that hooks up to the battery, since it wouldn't clamp onto the battery post tightly. I cleaned all the connections before putting the new one on and now it seems to idle a lot higher than it use to( don't have a tach so I don't know exactly how high). You know when you first start a vehicle and they rev high for a few seconds? It sounds like its stuck up high like that.
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Old Nov 21, 2012 | 02:03 AM
  #2  
Scotty16's Avatar
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From: Placerville, CA
Year: 1989
Model: Cherokee
Engine: 4.0 Inline 6
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TPS, I had a high idle, replaced my TPS and everything is good as new.

I read up on some threads on here, try searching "high idle" thats what I did.
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Old Nov 21, 2012 | 10:07 AM
  #3  
RTorrez1's Avatar
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From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
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Originally Posted by Scotty16
TPS, I had a high idle, replaced my TPS and everything is good as new.

I read up on some threads on here, try searching "high idle" thats what I did.
^^ This^^
Or when you worked on it you could have cracked or knocked off a vacuum line.
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Old Nov 21, 2012 | 10:11 AM
  #4  
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Model: Cherokee
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I would check all vacuum lines first hen consider the tps. Pick up a can of carb or throttle body cleaner and spray he lines, if it revs higher you have a vacuum leak
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Old Nov 21, 2012 | 04:54 PM
  #5  
RideRed264's Avatar
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From: Muskegon, Mi
Year: 1997
Model: Cherokee
Engine: 4.0
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So when I started it up this morning it began to idle normally, so I guess that problem is fixed for now lol. Now I've got the check engine light on with code p1398. I already had the cps replaced about a month ago.
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