Why does your 1999 Taurus cut out between 25-35mph when accelerating?

You could have a problem with your spark plugs or wires, causing a misfire. If there is a check engine light on, you may have a problem with one of your sensors such as the Mass Airflow Sensor. The other possibilities have to do with fuel delivery - clogged fuel filter, dirty injectors, or a fuel pump on its way out.