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Home >> Buick >> 1979 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Auto. A/C Systems - Automatic Climate Control >> Description >> Programmer >> Feedback Potentiometer

Feedback Potentiometer

Snubs movements of the vacuum motor so that a small signal from the sensors does not create maximum movement of the motor in either direction. This unit is adjustable if ATC Tester J-23678 is available.