gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Expansion Valve|Service and Repair|Page 6621 > < Evaporator Temperature Sensor / Switch|Locations|Page 6617
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Expansion Valve: Service and Repair

THERMAL EXPANSION VALVE REPLACEMENT

TOOLS REQUIRED

J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Remove the nut from the TXV mounting stud.

3. Remove the evaporator tube and the compressor suction hose from the TXV.
4. Remove and discard the seal washers.

5. Remove the TXV bolts.
6. Remove the TXV.
7. Remove and discard the seal washers.

INSTALLATION PROCEDURE

Expansion Valve|Service and Repair|Page 6621 > < Evaporator Temperature Sensor / Switch|Locations|Page 6617