How do you replace engine heater element on a 2002 F-250 7.3 diesel?
ennngine heater is located at rear end of engine oil cooler on side of engine underneath the mainifold follow your engine oil heater plug in wires back to it and ; disconnect wire harness from heater. using correct wrench unscrew heater from oil cooler. install new heater, reattach wire harness PS .