Some Chevrolet C3500 owners report experiencing issues such as a check engine light accompanied by erratic transmission shifting and idle engine alarms. These symptoms may indicate problems with the vehicle's transmission and engine systems, including rough shifting from 1st to 2nd gear and random engine shut-off at idle. An illuminated check engine light could be triggered by a faulty shift solenoid, which is a common issue in modern vehicles. Additionally, owners may notice erratic shifting, refusal to shift gears, or slipping between gears, all of which are signs of potential transmission problems. Furthermore, there is a pending recall for a bypass valve solenoid that may affect certain Chevrolet vehicles, including the C3500, highlighting the importance of staying informed about recalls to address safety and performance concerns promptly. It is recommended for owners to have their vehicles inspected by a qualified mechanic to effectively diagnose and resolve these issues.
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