With Automatic Temperature Control A/C

Removal

Fig 46 Suction Accumulator Drier:

Note: Whenever an evaporator case is removed, it will be necessary to replace the suction accumulator/drier.

1. Disconnect battery ground cable.
2. Drain coolant from radiator into a clean container.
3. Discharge refrigerant from A/C system. Observe all safety precautions.
4. Disconnect heater hoses from heater core.
Plug heater core tubes, or blow any coolant from heater core with low-pressure air.
5. Disconnect vacuum supply hose from in-line vacuum check valve in engine compartment.
6. Disconnect liquid line and accumulator from evaporator core at dash panel.
Cap refrigerant lines and evaporator core to prevent entrance of dirt and moisture.
7. Remove instrument panel, and place it on front seat.
8. Remove screw holding instrument panel shake brace to evaporator case and remove instrument panel shake brace.

Fig 25 Heater And A/C Evaporator Installation:

9. Remove two screws attaching floor register and rear seat duct to bottom of evaporator case (Fig. 25).
10. Remove three nuts attaching evaporator case to dash panel in engine compartment (Fig. 25, Main View).
11. Remove two screws attaching support brackets to cowl top panel (Fig. 25, View A).
12. Carefully pull evaporator assembly away from dash panel and remove evaporator from vehicle.

Installation
1. Position evaporator case assembly to dash panel and cowl top panel at air inlet opening.
Install two screws attaching support brackets to cowl top panel.
2. Install three nuts in engine compartment attaching evaporator case to dash panel.
3. Install floor register and rear seat duct to evaporator case and tighten two attaching screws.
4. Install instrument panel shake brace and screw to evaporator case.
5. Install instrument panel.
6. Connect liquid line and suction accumulator to evaporator core.
7. Connect heater hoses to heater core.
8. Connect black vacuum supply hose to vacuum check valve in engine compartment.
9. Fill radiator to correct level with removed coolant or specified mixture of coolant and water.
10. Connect battery ground cable.
11. Leak test, evacuate and charge A/C refrigerant system.
12. Check system for proper operation.