GM 20787607
Shift Control Cable

The procedure to replace the range selector lever cable of a 2ml70 automatic transmission begins by setting the Steering Column shift lever to park position then removing the instrument panel knee bolster. Begin by taking out both the driver seat and body hinge pillar trim panel followed by pulling carpeting and insulation out from the driver location. Steer clear from steel cable twists when you detach the Steering Column retainer then separate the cable end from its ball stud positioning before deforming the tangs to remove the cable from its housing. The support should first lose its connection to the cable while simultaneously removing the grommet from the floor panel. After lifiting the vehicle with support tools proceed to take off the cable clamps attached to the floor panel reinforcement. Secure the transmission manual shaft in mechanical park position before removing the range selector lever cable heat shield bolts as well as its heat shield. The range select lever receives a cable removal while technicians detach it from the lever and detach the cable retainer and the cable from the bracket. The installation process starts with the transmission range selector cable installation while the manual shaft lever remains in mechanical park. Connect the cable to the cable bracket while using the retainer before tying it to the range select lever. Secure the heat shield by tightening its bolts to 17 nm (13 lb ft). Lower the vehicle while inserting the clips onto the cable where it attaches to the floor panel reinforcement while keeping the Steering Column shift lever in the park position. The floor panel receives the cable grommet before the range selector cable connects to both its support and Steering Column bracket while making sure all tangs strongly engage. To complete the procedure connect the cable end to the ball stud of the Steering Column and then secure the retainer before repositioning the carpet and insulation and finally reinstalling the body hinge pillar trim panel as well as the driver seat and instrument panel knee bolster. Perform transmission testing for proper gear shift operation while adjusting the cable if all gear positions remain unattainable.

Starting the repair of a 2ml70 automatic transmission range selector lever cable requires placing the Steering Column shift lever to park position then unfastening the instrument panel knee bolster and driver seat before removing the body hinge pillar trim panel. Start by pulling back carpet and insulation in the driver area before using an appropriate tool to remove the cable retainer from the Steering Column bracket and detached the cable end from the Steering Column ball stud. Then release the tangs to extract the cable while preventing unnecessary range selector cable twisting or bending. Use this step to remove the support-based range selector cable as well as the cable grommet from the floor panel. Support the vehicle while rising it and detach the cable's clips from the reinforcement panel and the range selector lever cable heat shield bolts before removing the heat shield. The vehicle should have its transmission manual shaft positioned to mechanical park as the installer disconnects the range select lever cable from the range select lever before removing the cable retainer and cable from the cable bracket. Attach the transmission range selector cable to the vehicle while maintaining the transmission manual shaft lever in mechanical park before installing the range selector lever cable to the cable bracket and securing it with the retainer. Fasten the heat shield over the transmission with bolts and tighten them to 17 nm (13 lb ft). Do the vehicle drop and position the clips at the cable ends on the floor panel reinforcement when also keeping the Steering Column shift lever in park. The floor panel receives the cable grommet while the range selector cable becomes attached to its support before connecting to the Steering Column bracket until tangs fully hook in. The final step consists of attaching the cable end to the Steering Column ball stud followed by retaining the cable with its metal clip. After that install the carpet and insulation before replacing the body hinge pillar trim panel, driver seat, and instrument panel knee bolster. Perform a transmission shift test before adjusting the cable unless all gears fail to activate.

Avoid unnecessary twisting or bending of the range selector cable.