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Air Conditioning Evaporator Thermal Expansion Valve Replacement

Fig 1: Air Conditioning Evaporator Thermal Expansion Valve Components
GM2018632Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Unclip and reposition the brake and fuel lines aside to gain access to the thermal expansion valve (TXV).
  3. Remove the air conditioning evaporator hose assembly from the TXV only. Refer to Air Conditioning Evaporator Hose Assembly Replacement (LUK)  or Air Conditioning Evaporator Hose Assembly Replacement (LTG) .
1 A/C Compressor Tube Assembly Nut
CAUTION:

Refer to Fastener Caution .


Tighten 
22 N.m (16 lb ft)
2 Sealing Washer (Qty:4)
Procedure 
Use new sealing washer. Refer to Air Conditioning System Seal Replacement .
3 Thermal Expansion Valve Bolt (Qty:2)
Tighten 
7 N.m (62 lb in)
4 Air Conditioning Evaporator Thermal Expansion Valve (TXV)
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