K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
Expansion Valve: Service and Repair
THERMAL EXPANSION VALVE REPLACEMENT - AUXILIARY
REMOVAL PROCEDURE
1. Remove the evaporator core.
2. Carefully remove the sealer packed around the Thermo Expansion Valve (TXV). Reuse the sealer on the replacement TXV.
IMPORTANT: Note the mounting location and the orientation of the tube on the core.
3. Remove the clip retaining the capillary tube to the evaporator core.
4. Disconnect the Evaporator tube connections from the TXV.
5. Remove the TXV from the tubes.
INSTALLATION PROCEDURE
1. Install the Thermal Expansion Valve (TXV) to the tubes.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Connect the Evaporator tube connections from the TXV.
Tighten
Tighten the tube connections to 28 N.m (21 lb ft).
