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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

"system running lean"

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Old Sep 7, 2011 | 01:41 AM
  #11  
97SlowWhite's Avatar
I live 4 Him He died 4 Me
 
Joined: Aug 2011
Posts: 518
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From: Rio Grande City, Tx
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vacuum leak, dirty maf sensor, i had bank 2 lean then the next day had bank 1&2.. clean the maf(was coated with dust, thanx k&n) and threw a fram tough guard in the airbox and ran like a champ since
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