Equinox FWD V6-3.4L (2007)
Expansion Valve: Service and Repair
Thermal Expansion Valve Replacement
Tools Required
J 39400-A Halogen Leak Detector
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. See: Service and Repair/Refrigerant Recovery and Recharging
Important: When removing the thermal expansion valve (TXV), keep dirt and foreign material from getting on or into the sealing
surfaces. Clean tools and a clean work area are important for proper service. The TXV seal area should be cleaned before any repairs are
performed. The parts must be kept clean at all times and any parts to be assembled should be cleaned with a non-petroleum based solvent
and dried with air. Use only lint free cloths to wipe parts. Do not allow solvent to enter evaporator or hoses.
2. Remove the evaporator outlet hose and liquid line retainer plate nut from the TXV.
3. Remove the evaporator outlet hose and liquid line from the TXV.
4. Remove and discard the sealing washers from the evaporator outlet hose and liquid line.
5. Install protective caps to the evaporator outlet hose and the liquid line to prevent contamination and desiccant saturation.
