Download Removal 1. Remove the following component: For a 3.4L engine, remove the air cleaner assembly. For a 3.8L engine, remove the fuel injector sight shield. 2. Drain the coolant. Use Hose Clamp Pliers in order to position aside the heater hose inlet and outlet clamp at the heater core. See Fig. 41 . Disconnect the inlet and outlet heater hose from the heater core. Remove the right and left insulators. Remove the floor carpet around heater core area. 3. Remove the rear floor air outlet duct from the holes in the floor reinforcement. Disconnect the rear floor air outlet duct from the heater core outlet cover. See Fig. 31 . Remove the bolts from the vacuum harness bracket and position bracket aside.