Explorer 2WD V6-4.0L VIN K Flex Fuel (2002)
Evaporator Core: Description and Operation
Main Climate Control
NOTE:
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The evaporator core is not separately serviceable, it is serviced only with the evaporator core housing assembly.
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If an evaporator core leak is suspected, the evaporator core must be vacuum leak tested before it is removed from the vehicle.
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Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of
system contamination from a failed A/C compressor or damage to the suction accumulator.
The 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 evaporator core through the evaporator core inlet tube, continues over to the remaining
five plate/fin sections, and then moves out of the evaporator core through the evaporator core outlet tube.
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This S-pass flow pattern accelerates the flow of refrigerant and oil through the evaporator core.