Express 1/2 Ton Van V6-4.3L VIN X (2003)
Expansion Valve: Service and Repair
THERMAL EXPANSION VALVE REPLACEMENT - AUXILIARY
REMOVAL PROCEDURE
1. Remove the evaporator core.
2. Gently remove the sealer packed around the thermal expansion valve (TXV).
3. Remove the clip retaining the capillary tube to the evaporator core.
IMPORTANT: Note the mounting location and the orientation of the tube on the core.
4. Disconnect the evaporator tube connections from the TXV.
5. Remove the TXV from the core.
INSTALLATION PROCEDURE
1. Install the TXV to the core.
2. Connect the evaporator tube connections to the TXV.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the tube connections to 28 N.m (21 lb ft).
3. Install the clip in order to retain the capillary tube to the evaporator core.
IMPORTANT: Install the clip and the tube in the location and the orientation as noted during the disassembly.