Ranger 4WD L4-2.3L VIN D (2002)
Expansion Block/Orifice Tube: Description and Operation
A/C Evaporator Core Orifice
NOTE: Install a new evaporator core orifice whenever a new A/C compressor is installed.
The evaporator core orifice has the following characteristics:
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it is located in the evaporator core inlet tube
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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
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O-ring seals on the evaporator core orifice prevent the high-pressure liquid refrigerant from bypassing the evaporator core orifice
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adjustment or repair cannot be made to the evaporator core orifice assembly, it must be replaced as a unit