Focus L4-2.3L VIN Z (2003)
Expansion Block/Orifice Tube: Description and Operation
A/C EVAPORATOR CORE ORIFICE
The A/C evaporator core orifice has the following characteristics:
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It is located in the rear condenser to evaporator tube and can be removed through an access fitting.
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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 A/C evaporator core orifice.
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O-ring seals on the A/C evaporator core orifice prevent the high-pressure liquid refrigerant from bypassing the A/C evaporator core orifice.
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Adjustment or repair cannot be made to the A/C evaporator core orifice assembly. It must be serviced as a unit.
