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Problem with high idle... 87 XJ

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Old Mar 10, 2010 | 06:00 AM
  #1  
Lobutcha's Avatar
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Model: Cherokee
Default Problem with high idle... 87 XJ

Hello all new here,

I'm having a problem with a high idle when first starting. It doesn't do it all the time, but I have to turn it off, on, off, then on several times to get it to stop.

Anyone have any suggestions on what might be wrong. It's an inline 6 with the fuel injection and throttle body type intake. Hope this helps.

Thanks,
Lobutcha
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Old Mar 10, 2010 | 06:22 AM
  #2  
dbabicky90's Avatar
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Joined: Jan 2010
Posts: 88
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From: N.E. Wisconsin
Year: 1990
Model: Cherokee
Engine: 4.0
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Check all your vacuum connections, especially those $hitty plastic lines,with the $hitty connectors,that tend to crack.They can cause those eratic conditions you speak of.
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Old Mar 10, 2010 | 06:37 AM
  #3  
jbetit's Avatar
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Joined: Feb 2010
Posts: 938
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From: Alto, MI
Year: 2002
Model: Grand Cherokee
Engine: 4.7
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yup, sounds like a vacuum leak.
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