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Home >> Chevrolet >> 2003 >> Express 1/2 Ton Van AWD V8-5.3L VIN T >> Repair and Diagnosis >> Heating and Air Conditioning >> Air Door >> Service and Repair >> Recirculation Door Replacement
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Recirculation Door Replacement

RECIRCULATION DOOR REPLACEMENT

TOOLS REQUIRED
J 39400-A Electronic Leak Detector

REMOVAL PROCEDURE
1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging.
2. Disconnect the electrical connectors from the low pressure sensor.
3. Disconnect the electrical connector to the blower motor assembly.
4. Disconnect the electrical connector to the blower motor resistor assembly.
5. Remove the evaporator outlet hose retaining nut from the accumulator.
6. Remove the retaining nut from the evaporator inlet tube.
7. Remove the evaporator inlet tube from the evaporator.
8. Remove the sealing washer.
9. Remove the retaining nut from the evaporator outlet tube.
10. Remove the evaporator outlet tube from the evaporator.
11. Remove the sealing washer.
12. Remove the screws from the evaporator and blower module assembly.
13. Remove the evaporator and blower module assembly front cover.
14. Remove the recirculation door actuator and the linkage.
15. Remove the recirculation door from the evaporator and blower module assembly.

INSTALLATION PROCEDURE
1. Install the recirculation door to the evaporator and blower module assembly.
2. Install the recirculation door actuator and the linkage.
3. Install the evaporator and blower module assembly cover.
4. Install the screws.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the screws to 1.9 N.m (17 lb in).

5. Install new sealing washers to the evaporator inlet and outlet tubes.
6. Install the evaporator inlet tube to the evaporator.
7. Install the evaporator inlet tube retaining nut.

Tighten
Tighten the nut to 16 N.m (12 lb ft).

8. Install the evaporator outlet tube to the evaporator.
9. Install the evaporator outlet tube retaining nut.

Tighten
Tighten the nut to 16 N.m (12 lb ft).
10. Install new O-ring seals.
11. Install the evaporator outlet hose.
12. Install the evaporator outlet hose retaining nut to the accumulator.

Tighten
Tighten the nut to 18 N.m (13 lb ft).

13. Connect the electrical connectors to the low pressure sensor.
14. Connect the electrical connector to the blower motor assembly.
15. Connect the electrical connector to the blower motor resistor assembly.
16. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
17. Leak test the fittings of the component replaced. Refer to J 39400-A.
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