Where is the transmission vacuum modulator on a 2001 Buick regal?

The transmission vacuum modulator on a 2001 Buick Regal is typically located on the transmission itself, usually on the side of the transmission case. It is a small cylindrical component connected to a vacuum line. To access it, you may need to raise the vehicle and remove any necessary components that obstruct the view or reach of the transmission. Always consult a repair manual for specific details and safety precautions before attempting any repairs.