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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Automatic >> Testing >> ATC Quick Test No. 7 >> Alternating Long Periods Of Hot & Cool Air

Alternating Long Periods Of Hot & Cool Air

Ensure aspirator hose is connected at dash and in-car temperature sensor. Check aspirator tube for blockage.