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Is your GM Chevy GMC Duramax experiencing transmission problems? Are you seeing error codes related to the Allison A50 T14 Transmission Control Module (TCM)? In this article, we'll explore common issues with the Allison A50 T14 TCM, troubleshooting steps, and repair options.The Allison A50 T14 TCM is a critical component of your vehicle's transmission system, responsible for controlling gear shifts, torque converter engagement, and other transmission functions. However, like any complex electron …