Vehicle Speed Sensor (4L60-E): Removal
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Raise and support the vehicle. Remove the electrical connector from the speed sensor. Remove the bolt. See Figure . Remove the speed sensor and the O-ring seal. Inspect the seal and the transmission case. Replace the seal, if necessary.