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99 wj 4.0 is under powered

862 views 7 replies 4 participants last post by  blazepsi 
#1 ·
Well everything is new besides the motor and all the cylinders read the sane and my gas milage went to **** any ideas.. I got a 2 inch lift with stock size tires
 
#2 ·
Fuel Filter **
Spark Plugs
Air Filter crammed full of dirt by chance?

Any codes?
 
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