Evaporator Core: Service and Repair

On models with airbag restraint system, battery ground cable must be disconnected and isolated before performing this procedure. Failure to do so may result in accidental deployment and personal injury.
1. Disconnect battery ground cable, then drain cooling system.
2. Discharge refrigerant system.
3. Remove air cleaner, then disconnect heater hoses from heater core. Install plugs in heater core tubes to prevent coolant from spilling when removing unit.
4. Remove H valve, then cap refrigerant lines to prevent dirt and moisture from entering.
5. Remove instrument cluster bezel assembly.
6. Remove instrument panel upper cover, steering column cover and right intermediate side cowl trim panel.
7. Remove lower instrument panel.
8. Remove instrument center to lower reinforcement.
9. Remove floor console, if equipped.
10. Remove right center air distribution duct.
11. Disconnect locking tab on defroster distribution duct.
12. Disconnect blower motor resistor block wire connector.
13. Disconnect vacuum lines from water valve and vacuum source tee.
14. Remove wiring from heater-A/C unit and vacuum lines from inlet air housing, then disconnect vacuum harness coupling.
15. Remove nuts from heater-A/C housing mounting studs on engine side of dash panel.
16. Remove hanger strap from plenum stud above heater-A/C unit housing, then tilt evaporator housing back to clear dash panel and remove housing from vehicle.
17. Remove servo motor from shaft, then top cover screws and the cover.
18. Remove evaporator core from housing.
19. Reverse procedure to install.