Express 1/2 Ton Van V8-5.7L VIN R (1999)
Heater Core: Service and Repair
Heater Case/Cover Replacement
Heater Case Replacement (Auxiliary)
REMOVAL PROCEDURE
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. Remove the left rear quarter trim panel.
4. Remove the left rear corner garnish molding.
5. Disconnect the heater to roof duct from the auxiliary heater.
6. Remove the heater to floor vent duct.
7. Disconnect the electrical connectors from the auxiliary heater (1).
8. Raise the vehicle. Support the vehicle with safety stands.
9. Remove the heater and A/C line cover from the underside of the auxiliary heater.
10. Remove the one retaining nut in order to remove the auxiliary evaporator underbody rear tube assembly from the core, if equipped.
11. Disconnect the heater lines from the underside of the auxiliary heater.
12. Remove the retaining nuts from the underside of the auxiliary heater.
13. Remove the safety stands.
14. Lower the vehicle.
15. Remove the auxiliary heater from the vehicle.
INSTALLATION PROCEDURE
