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Old Feb 2, 2009 | 10:03 AM
  #1  
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2003f150xl
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From: Memphis
check engine ?

i get a check engine light
i took it to the zone and the codes say its running too lean
what do i do?
 
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Old Feb 2, 2009 | 11:55 AM
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Ron W.
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What were the codes?
 
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Old Feb 2, 2009 | 01:32 PM
  #3  
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2003f150xl
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P0171
p0174
p1131
p1151
 
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Old Feb 2, 2009 | 02:36 PM
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Ron W.
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Sounds like the infamous vacuum leak, if you have a V8 first guess is the 90% rubber connector on the PCV line where it attaches to the back of the intake. Search P0174 lots of good info on this site.
 
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Old Feb 2, 2009 | 03:47 PM
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4.2 v6...........
 
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Old Feb 3, 2009 | 09:49 AM
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Ron W.
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Sorry man I'm not up on the 4.2, I'd still lay odds you've got a vacuum leak. Good Luck.
 
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Old Feb 3, 2009 | 10:12 AM
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2003f150xl
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yeah im gonna give the vacuum leak a look today when i get off work, thanks for the help, i also found a lot of help from the old threads you suggested.
 
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