Ranger 2WD V6-182 3.0L (1995)
Service Port HVAC: Description and Operation
Service gauge ports are located as follows:
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High-pressure port - In the compressor discharge line near the A/C condenser core. (An adapter, Rotunda [high side coupling] 176-R0037 or
equivalent is required to accommodate installation of service equipment.)
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Low-pressure port - On top of the suction accumulator/drier near the A/C cycling switch. (An adapter, Rotunda [low side coupling] 176-R0036
or equivalent is required to accommodate installation of service equipment.)