Where is the speed sensor located on 1991 Buick regal limited?
The speed sensor on a 1991 Buick Regal Limited is located on the transmission. It is a small, cylindrical-shaped sensor located near the rear of the transmission. The speed sensor is responsible for measuring the speed of the transmission output shaft and sending this information to the engine control module (ECM). The ECM uses this information to control the engine's shift patterns and fuel mixture.