Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
Hose/Line HVAC: Description and Operation
Auxiliary Climate Control
UNDERBODY AUXILIARY A/C LINES
The underbody auxiliary A/C lines carry refrigerant to the auxiliary A/C evaporator inlet line, and away from the auxiliary A/C evaporator outlet line.
The auxiliary underbody lines have the following characteristics.
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The underbody auxiliary A/C evaporator inlet line consists of two separately serviceable pieces.
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The fore auxiliary A/C evaporator inlet line carries high pressure refrigerant liquid from the condenser to evaporator line to the aft auxiliary A/C
evaporator inlet line.
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The aft auxiliary A/C evaporator inlet line carries high pressure refrigerant liquid from the fore auxiliary A/C evaporator inlet line to the auxiliary
evaporator inlet.
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The underbody auxiliary A/C evaporator outlet line consists of two separately serviceable pieces.
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The aft auxiliary A/C evaporator outlet line carries refrigerant vapor from the auxiliary A/C evaporator outlet to the fore auxiliary A/C evaporator
outlet line.
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The fore auxiliary A/C evaporator outlet line carries refrigerant vapor from the aft auxiliary A/C evaporator inlet line to the manifold and tube
assembly.
UNDERBODY HEATER LINES
The underbody auxiliary heater lines have the following features.
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The underbody auxiliary heater inlet line consists of two separately serviceable assemblies.
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The fore underbody auxiliary heater inlet line is a steel tube assembly that carries coolant from the front heater core inlet line to the aft underbody
auxiliary heater inlet line.
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The aft underbody auxiliary heater inlet line carries coolant from the fore underbody heater inlet line to the auxiliary heater core.
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The aft underbody auxiliary heater inlet line consists of a steel tube with formed rubber hoses at each end. The rubber hoses are attached and
sealed to the tube using constant tension pop clamps.
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The aft underbody auxiliary heater outlet line carries coolant from the auxiliary heater core to the fore underbody auxiliary heater outlet line.
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The aft underbody auxiliary heater outlet line consists of a steel tube with formed rubber hoses at each end. The rubber hoses are attached and
sealed to the tube using constant tension pop clamps.
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The fore underbody auxiliary heater outlet line is a steel tube assembly that carries coolant from the aft underbody heater outlet line to the front
heater core outlet line.
