Escape 4WD V6-181 3.0L DOHC VIN 1 Duratec (2003)
Evaporator Core: Description and Operation
NOTE: Installation of a new suction accumulator is not necessary when repairing the air conditioning system except when there is physical evidence of
system contamination from a failed A/C component or damage to the suction accumulator.
The A/C evaporator housing contains the A/C evaporator core. The A/C evaporator core is the plate/fin type with a unique refrigerant flow path.
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A mixture of refrigerant and oil enters the bottom of the A/C evaporator core through the A/C evaporator core inlet tube and is routed so it flows
through the partitioned first four plate/fin sections.
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The next four plate/fin sections are partitioned to force the refrigerant to flow toward the other end of the A/C evaporator core.
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The next five plate/fin sections are partitioned to force the refrigerant to flow toward the bottom of the A/C evaporator core.
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Refrigerant then continues through to the remaining five plate/fin sections and then moves out of the A/C evaporator core through the A/C
evaporator core outlet tube.
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This W-pass flow pattern transfers the flow of refrigerant and oil through the A/C evaporator core.
