HVAC Pressure Switch. 2000 Chevrolet Impala Engine: 3.4L V6; High Side Refrigerant Press | Three Wire;. 2000 Chevrolet Impala Engine: 3.8L V6; High Side Refrigerant Press | Three Wire;. 2001 Chevrolet Impala Engine: 3.4L V6; High Side Refrigerant Press | Three Wire;.
