2003 4.0 running lean | Ford Explorer Forums

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2003 4.0 running lean

rcl9

Member
Joined
July 28, 2013
Messages
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Year, Model & Trim Level
2003 explorer
my 03 is running lean both banks and it has an off and on ruff idle I just had to replace the exhaust it was all plugged up both 02S, plugs,wires are new it has plenty of power but it codes lean. cant find any vac. leaks cleaned maf don't know where to go from here what do you think thanks for any help
 






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