Monterey V6-4.2L VIN 2 (2004)
Expansion Block/Orifice Tube: Description and Operation
EVAPORATOR CORE ORIFICE TUBE
NOTE: A new evaporator core orifice tube should be installed whenever a new A/C compressor is installed.
The A/C evaporator core orifice has the following characteristics:
-
It is color-coded orange.
-
It is located in the condenser to evaporator line.
-
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 evaporator core orifice tube.
-
O-ring seals on the evaporator core orifice tube prevent the high-pressure liquid refrigerant from bypassing the evaporator core orifice tube.
-
It can be accessed through a fitting in the condenser to evaporator line.
-
Adjustment or service cannot be carried out to the evaporator core orifice tube. A new evaporator core orifice must be installed.