Not sure which truck you have this description is for F250
Drain cooling system. Disconnect heater hoses. Remove glove box for access. Remove RABS module mounting screws and move module aside. Remove 7 screws attaching heater access cover to plenum. Disconnect vacuum source. Leave vacuum harness attached to cover. Remove cover. Remove heater core from plenum. To install, reverse removal procedure.
Thursday, November 27th, 2008 AT 1:24 PM