2005 Buick Rainier A/C Expansion Valve

You should remove the evaporator core-auxiliary, the foam insulators from the evaporator core-auxiliary lines, and the foam insulators from the thermal expansion valve-auxiliary, loosen the flare nuts from the thermal expansion valve-auxiliary, remove the auxiliary thermal expansion valve sensing bulb and retaining clip from the evaporator core-auxiliary lines, the thermal expansion valve-auxiliary from the evaporator core-auxiliary and the O-ring seals from the evaporator core-auxiliary and cap or tape the lines to prevent contamination of the evaporator core-auxiliary.