Originally Posted by LibertyTC View Post. You have an 04 3.7, how many miles on engine now? Not at home where my service manual is.... I am sure other's will chime in.....soon. .... Blake's Jeep: 2004 Jeep Liberty Limited Edition -Atlantic Blue with Light Taupe -Transfer Case: NP242 -OME/Rustys Lift -Powertrax No-slip -Flowmaster 50 Series SUV -MTX Sub&Amp -Mopar front tow hooks -245/70/16 Yokohama Geolander A/T-S's mounted on MOABS Jeepsters Gallery ...