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Home >> Chevrolet >> 1972 >> Chevelle Base, Not Available, 6.6L Eng VIN S, Not Available Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Theory Of Operation, Testing & Adjusting >> Adjustment >> Notes

Theory Of Operation, Testing & Adjusting: Adjustment: Notes

Three major adjustments may be checked and accomplished without removing the programmer unit from the car. ATC Tester J-23678 is required. Using the Tester, make adjustments as follows: