Evaporator Core: Service and Repair

Fig. 6 Exploded View Of Evaporator Core:

1. Discharge the system. (Slowly to prevent loss of compressor oil)
2. Disconnect the inlet (suction) hose.
3. Disconnect the receiver-drier to evaporator hoses.
4. Remove the hose clamps and dash grommet retaining screws.
5. Lower the evaporator housing and pull the hoses and hose grommet through the dash opening. The blower motor, blower motor housing, evaporator core, control switches and expansion valve can all be serviced after removing the evaporator housing.
6. Reverse procedure to install, noting the following:
a. Add one ounce of refrigerant oil to the system when replacing the evaporator.
b. Evacuate, charge and leak test the system.