Air Conditioning Evaporator Thermal Expansion Valve Replacement. Chevrolet Joy 2008

For 1990-2009 cars

### Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Disconnect the negative battery cable.
3. Remove the evaporator core pipe connector block retaining nuts.
4. Remove the expansion valve connector block retaining stud bolts.
5. Remove the expansion valve.
6. Discard the O-ring.

### Installation Procedure

1. Clean the O-ring surface area of dirt or contamination.
2. Install the new O-ring on the evaporator pipe.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the expansion valve stud bolts.

Tighten
Tighten the expansion valve stud bolts to 12 N·m (106 lb in).

4. Install the evaporator pipe connecting block retaining nut.

Tighten
Tighten the evaporator pipe connecting block retaining nut to 14 N·m (10 lb ft).

5. Connect the negative battery cable.
6. Evacuate and recharge the system. Refer to Refrigerant Recovery and Recharging .