Evaporator Core: Service and Repair

EVAPORATOR CORE







Removal and Installation

CAUTION: Refrigerant compressor oil (mineral oil) should be used to lubricate R-134a refrigerant system O-ring seals only and should not be added to the R-134a refrigerant system as an A/C compressor lubricant. PAG refrigerant compressor oil only should be used as an A/C compressor lubricant.

NOTE:
- If an evaporator core leak is suspected, the evaporator core must be vacuum leak tested before it is removed from the vehicle.
- Installation of a new receiver/drier is not required when repairing the air conditioning system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the receiver/drier.

1. Remove the heater core and evaporator core housing.







2. Remove the 2 screws which connect the air inlet housing to the evaporator core housing.







3. Disengage the clip and separate the air inlet housing from the evaporator core housing.







4. Disconnect and position the evaporator core housing wire harness aside.
5. Remove the dash panel seal.
6. Remove the 8 heater core and evaporator core housing cover screws.
7. Remove the heater core and evaporator core housing cover.
8. Remove the evaporator core.
9. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.