Evaporator Case: Service and Repair

Heater and Evaporator Unit Removal

1. Recover the refrigerant with a recovery/recycling/charging station.
2. When the engine is cool, drain the engine coolant from the radiator.
3. Disconnect the negative cable from the batter.




4. Remove the bolts (A) and the expansion valve (B) from the evaporator core. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
5. Disconnect the inlet (C) and outlet (D) heater hoses from the heater unit. Engine coolant will run out when the hoses are disconnected; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately.
6. Remove the crash pad.




7. Disconnect the connectors (A) from the temp. actuator, the mode actuator and the thermistor, then remove mounting nut (B), the mounting bolts (C) and heater and evaporator unit (D).
8. Install in the reverse order as removal.