Explorer 2WD V6-245 4.0L VIN X SFI (1999)
Expansion Block/Orifice Tube: Description and Operation
NOTE: A new A/C evaporator core orifice should be installed whenever a new A/C compressor is installed.
A/C Evaporator Core Orifice
The A/C evaporator core orifice has the following characteristics:
^
It is color-coded red.
^
It has an orifice diameter of 1.6 mm (0.062 inch).
^
It is located in the A/C evaporator core inlet tube.
^
It has filter screens located on the inlet and outlet ends of the tube body.
^
The inlet filter screen acts as a strainer for the liquid refrigerant flowing through the A/C evaporator core orifice.
^
O-rings on the A/C evaporator core orifice prevent the high-pressure liquid refrigerant from bypassing the A/C evaporator core orifice.
^
Adjustment or service cannot be made to the A/C evaporator core orifice assembly. A new evaporator core orifice assembly must be installed.
