Heater Core Case: Service and Repair

REMOVAL
1. Remove the battery and the battery tray brackets. For additional information, refer to Battery.
2. Perform the Discharging and Recovery Procedure. Refer to: Heating and Air Conditioning, Service and Repair, Refrigerant Discharging and Recovery Procedure, Refrigerant Discharging and Recovery procedure

3. Drain the cooling system. For additional information.
4. Remove the instrument panel.Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, Removal and Installation, Removal and Installation







5. Disconnect the heater core hose couplings. Service and Repair







6. Disconnect the refrigerant line spring lock couplings from the A/C evaporator core. Service and Repair







7. Remove the plenum chamber nuts.







8. Disconnect the A/C vacuum hose from the A/C vacuum check valve.







9. Remove the plenum chamber nuts.







10. Remove the plenum chamber.

INSTALLATION
1. To install, reverse the removal procedure.