Cutlass L4-138 2.3L VIN A FI HP (1990)
Evaporator Core: Service and Repair
Evaporator And Heater Core Removal
REMOVE OR DISCONNECT
1. Negative battery cable.
2. Discharge A/C system.
3. Drain cooling system.
4. Evaporator core block connection at cowl.
5. Heater hoses from core.
NOTE Blowing out residual coolant from inside the heater core will prevent coolant leakage into the passenger compartment when the heater
core is removed.
6. Heater core cover. Refer to Heater Core Case.
7. Heater core.
8. Evaporator core cover.
9. Evaporator.
INSTALL OR CONNECT
1. Evaporator.
2. Evaporator core cover.
3. Heater core.
4. Heater core cover. Refer to Heater Core Case.
5. Heater hoses to core.
6. Evaporator core block connector.
7. Fill cooling system and check for leaks.
8. Negative battery cable.
9. Evacuate, charge, and leak-test A/C system.