Spectra L4-2.0L (2004)
Heater Core Case: Service and Repair
Heater/Evaporator Unit
REPLACEMENT
1. Disconnect the negative(-) battery terminal.
2. Recover the refrigerant with a recovery/recycling/charging station
3. When the engine is cool, drain the engine coolant from the radiator.
4. Disconnect the inlet(A) and outlet(B) 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.
5. Remove the bolts(C) and the expansion valve(D) from the evaporator core.
Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
6. Remove the crash pad.
7. Disconnect the connectors from the temp. actuator, the mode actuator and the thermistor, then remove the mounting nuts.
8. Remove the heater & evaporator unit after loosening the mounting screws.
