Explorer Sport Trac 4WD V6-4.0L VIN K Flex Fuel (2004)
Hose/Line HVAC: Description and Operation
REFRIGERANT LINES
NOTE: 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 condenser to evaporator tube contains high pressure liquid refrigerant upstream of the A/C evaporator core orifice.
The A/C manifold and tube is attached to the A/C compressor, is sealed with O-ring seals, and has the following features:
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The upstream side contains low pressure refrigerant gas.
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The downstream side contains high pressure refrigerant gas and a fitting used to mount a serviceable high-pressure A/C charge port valve.
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The downstream side also contains a fitting used to mount the A/C pressure cutoff switch. A long-travel Schrader-type valve stem core is installed
in the fitting so that the A/C pressure cutoff switch can be removed without discharging the A/C system.
