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How do you change the AC evaporator core on a 2003 Kia Sorento?

Tools

- Phillips screwdriver

- Flat-blade screwdriver

- Box wrench set

- Torx wrench set

- 10 mm socket

- 12 mm socket

- Open-end wrench

- Freon recovery equipment

Materials

- Evacuation pump

- Refrigerant (R-134a)

- Refrigerant oil

- O-rings

- Evaporator core

1. Discharge the HFC-134a Refrigerant

- Before you can remove the evaporator, you must discharge the HFC-134a refrigerant from the A/C system. Do this with a refrigerant recovery machine. (Warning: HFC-134a refrigerant can cause injury.)

2. Remove the Instrument Panel Lower Trim Panel

- Pry off the two snap-on covers over the under-dash panel mounting screws, remove the screw, then remove the lower instrument panel trim panel.

3. Remove the Evaporator Core

- Disconnect the electrical connector from the evaporator temperature sensor.

- Disconnect the refrigerant suction hose from the evaporator.

- Remove the two bolts connecting the air inlet duct to the evaporator housing.

- Pull the air inlet duct off of the evaporator housing.

- Remove the two bolts retaining the evaporator to the evaporator housing.

- Pull the evaporator core out of the evaporator housing.

4. Install the Evaporator Core

- Position the new evaporator in the housing.

- Install the two retaining bolts.

- Install the two bolts retaining the air inlet duct to the evaporator.

- Snap on the air inlet duct.

- Connect the refrigerant suction hose.

-Connect the electrical connector.

5. Evacuate and Recharge the System

- Vacuum the system down to at least 29 inches of mercury with an A/C evacuation pump.

- Add refrigerant oil as specified in the vehicle service manual.

- Connect your recharge equipment, and charge the system with the appropriate amount of R-134a refrigerant.