Evaporator Core: Service and Repair

CHEVETTE & 1000

1. Disconnect battery ground cable, then discharge system refrigerant.
2. Remove heater core case retaining screws (attaching case to air distributor assembly). With heater hoses still attached, roll assembly forward out of air distributor.
3. Remove accumulator and brackets. Refer to "Accumulator, Replace".
4. Remove temperature door cable. Remove door arm access cover, and place control door arm in position so upper evaporator case cover is not blocked during removal.
5. Remove blower motor. Refer to "Blower Motor, Replace
6. Remove sealer from exposed part of outlet tube at upper evaporator case. Remove upper evaporator case screws and case.
7. Remove evaporator core.
8. Reverse procedure to install, replacing sealer at outlet tube.