Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
2. Remove the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 4.3 L.
3. Remove the engine coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.

Important: The nuts (4) and ferrules (3) will remain on the evaporator tube. Do not try to remove.

4. Remove the nuts (4) from the A/C refrigerant filter (1).



5. Remove the A/C refrigerant filter (1) from the evaporator tube.

1. Coat the new O-rings (2) with 525 viscosity refrigerant oil.
2. Install the new O-rings (2) to the evaporator tube.
3. Install the A/C refrigerant filter (1) to the evaporator tube with the flow arrow pointing towards the evaporator.

Notice: Refer to Fastener Notice in the Preface section.

4. Install the nuts (4) to the A/C refrigerant filter (1).

Tighten
Tighten the nuts to 15 N·m (11 lb ft).

5. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
6. Leak test the fittings component using the J 39400-A .
7. Install the engine coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
8. Install the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 4.3 L.