Express 1/2 Ton Van V8-5.7L VIN R (1999)
1. Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2. Recover the refrigerant, if equipped with A/C. Refer to Refrigerant Recovery and Recharging in HVAC Systems with A/C-Manual.
3. Disconnect the heater hoses from the heater core.
4. Remove the evaporator case from the vehicle.
5. Remove the heater case retaining nuts (2 ) from the engine compartment.
6. Roll out the instrument panel. Refer to IP Carrier Replacement in Instrument Panel, Gauges and Console.
7. Disconnect the electrical connectors.
8. Disconnect the vacuum lines.
9. Remove the heater case (5) from the vehicle.
INSTALLATION PROCEDURE
1. Install the heater case (5) into the vehicle.
