Diplomat V8-318 5.2L VIN S 4-BBL (1983)
Heater Core: Service and Repair
Before attempting to remove a heater core, disconnect the battery ground cable, drain the radiator and remove inlet and outlet hoses from heater
assembly in engine compartment.
Fig. 7 Heater core & blower motor assembly (less A/C). 1982---83 Cordoba & Mirada
Fig. 8 Heater core & blower motor assembly (with A/C). 1982---83 Cordoba, Imperial & Mirada
Less Air Conditioning
1. Disconnect battery ground cable and drain cooling system.
2. Disconnect heater hoses from heater core.
3. Disconnect vacuum hoses from water valve and manifold tee, then push hoses and grommet through dash panel.
4. Remove four nuts securing heater assembly to dash panel.
5. Move front seat rearward and remove console, if equipped.
6. Remove heater control and disconnect vacuum harness from extension harness, if equipped.
7. Remove glove box, ashtray and housing, righthand lap cooler duct, lower right hand trim panel or bezel, and the righthand cowl trim pad.
8. Disconnect blower motor electrical connections.
9. Disconnect temperature control cable from heater housing, then remove heater distribution housing, Figs. 7 and 8.
10. Support heater housing and remove the heater housing to plenum mounting brace. Pull housing rearward and move toward right side to remove.
11. Remove heater housing top cover, then the heater core retaining screw.
12. Lift heater core from housing.
13. Reverse procedure to install.
With Air Conditioning
1. Disconnect battery ground cable and drain cooling system.