2000 TJ 4.0L Idling Issues - JeepForum.com
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post #1 of 3 Old 10-14-2013, 07:24 PM Thread Starter
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2010 JK Wrangler 
Join Date: Dec 2006
Location: N.E. Oakland County
Posts: 289
2000 TJ 4.0L Idling Issues

My engine has 130k miles and it is starting to idle fast on its own. It will reach normal operating temp and idle nice and smooth. Then, it will take off and rev high for 60 seconds or more.

A co-worker stated the engine controller may have cracked soldering that is causing poor idle.

Has anyone experienced any of this?

Goose346 is offline  
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post #2 of 3 Old 10-15-2013, 03:29 AM
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1992 XJ Cherokee 
Join Date: Oct 2012
Location: umatilla
Posts: 1,961
Try taking it to autozone have them check for codes. Sounds like a bad sensor

uberxj92 is offline  
post #3 of 3 Old 10-15-2013, 12:09 PM
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Join Date: Jul 2013
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I agree check the crankshaft sensor, just a thought.
pstewart is offline  

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