3.9L are gas hogs, weak and get as bad of gas mileage as the v8...
everyone told me to stay away from the 4.7L also.. I have 2 4.7L a Jeep and a Dakota... both are well over 150,000. can not say I have had one problem with either one of them.. The Dakota is at 198,000 and has some timing noise, so plans are to put timing set and oil pump into it, later this summer.. If you hear something like timing chain noise, replacing it fixes it before it wipes out the motor...