Chevrolet G30 stuck in 2nd gear with non-functional speedometer on Chevrolet G30

Some Chevrolet G30 owners report experiencing issues with their vehicle being stuck in 2nd gear, accompanied by a malfunctioning speedometer. These problems may stem from transmission issues that prevent proper gear shifting, as well as a faulty speed sensor that leads to inaccurate speed readings. Additionally, some owners find that problems with the Electronic Control Module (ECM) can disrupt the transmission's shifting capabilities. To address these concerns, it is recommended that owners check the transmission fluid levels and quality, inspect the speed sensor and its wiring, and have the ECM scanned for error codes. If the issues persist, consulting a professional mechanic or dealership familiar with Chevy vehicles is advisable to ensure a thorough diagnosis and repair, ultimately preventing further complications and ensuring safe operation.