Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
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:
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It is color-coded red.
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It is located in the condenser to evaporator line.
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It has filter screens located on the inlet and outlet ends of the tube body.
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The inlet filter screen acts as a strainer for the liquid refrigerant flowing through the evaporator core orifice tube.
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O-ring seals on the evaporator core orifice tube prevent the high-pressure liquid refrigerant from bypassing the evaporator core orifice tube.
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it can be accessed through a fitting located near the middle of the condenser to evaporator line.
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Adjustment or service cannot be carried out to the evaporator core orifice tube. A new evaporator core orifice must be installed.
