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Home >> Buick >> 1975 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Testing >> Automatic Climate Control System Functional Test >> "AUTO" - Dial @ 85

"AUTO" - Dial @ 85

Blower speeds should drop and discharge air temperature should increase. Depending on temperature in work area, air delivery mode should change from A/C outlets to heater outlets.