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Home >> Plymouth >> 1978 >> Arrow Base, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Auto. A/C Systems >> System Components >> Master On-Off Switch

Master On-Off Switch

Located on top of passenger side evaporator housing, color coded green. Switch is vacuum operated and turns on blower when 8" of vacuum is applied.

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