The orifice tube is known as the expansion valve here and is attached to the cooler unit(evaporator) Procedures are as below.
REMOVAL AND INSTALLATION FOR EXPANSION VALVE
1. Discharge the refrigerant.
2. Disconnect the refrigerant lines from the cooler unit.
3. Remove the cooler grommet.
4. Remove the expansion valve.
Expansion valve mounting bolts Tightening torque: 2.9 - 5.0 N.M (0.29 - 0.51 kg-m, 26 - 44 in-lb)
Sunday, June 30th, 2013 AT 2:40 AM