Econoline E350 1 Ton V8-5.4L Prop SOHC VIN Z (1998)
Service Port HVAC: Description and Operation
Service Gauge Port Valve
The high-pressure service gauge port valve is located on the front A/C manifold and tube.
The low pressure service gauge port valve is located on the suction accumulator/drier.
The fitting is an integral part of the refrigeration line or component.
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Special couplings are required for both the high side and low side service gauge ports.
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The Schrader-type valve core can be replaced if the seal leaks.
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Always install the A/C charging valve cap on the service gauge port valves after repairing the refrigerant system.
