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Home >> Pontiac >> 1971 >> GTO Base, 6.6L Eng, Eng CD WS, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Operation >> Control Head Selector Lever >> Hi

Control Head Selector Lever: Hi

Operation is turned on as in LO and AUTO, but blower operates only at high speed. Temperature Dial setting will determine output air temperature. After system has stabilized, conditioned air will be distributed from both A/C and heater outlets ("bi-level" operation).

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