Evaporator Core: Service and Repair

1. Disconnect battery ground cable.
2. Drain coolant from radiator, then remove charcoal canister from vehicle.
3. Discharge refrigerant from system.
4. Disconnect heater hoses from heater core. Plug heater core tubes or blow any coolant from the heater core with low pressure air.
5. Disconnect liquid line and accumulator/dryer inlet tube from evaporator core at dash panel. Cap lines and evaporator core to prevent any dirt and moisture from entering the system.
6. Remove instrument panel.
7. Disconnect electrical connector from [1][2]A/C relays at top of case, then remove air duct bands.
8. Remove drain hose, then evaporator case attaching nuts and remove evaporator case from the vehicle.
9. Reverse procedure to install.