This '02 F-150 4.2 has 17 codes, will not clear. Clear codes with scan tool or bat, disconnect, first time the ign is turned on they all return ,P1519,P443,P1451,P1747,P750,P755,P743,P740,P753,P753,P758,P 760. etc. engine - evap - trans codes. Customer complai... Login to read more.