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Volkswagen
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1999
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Jetta (1W2) L4-1.9L DSL Turbo (AHU)
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Repair and Diagnosis
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Heating and Air Conditioning
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Expansion Valve
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Description and Operation
Expansion Valve: Description and Operation
The
expansion valve
restricts and controls
refrigerant
flow to the evaporator thus lowering refrigerant temperature and pressure.
NOTE:
The R-134a
expansion valve
is identified with a green adhesive label.