What are the reasons why the Baojun 310 AMT can start but not move when shifted into gear?
2 Answers
The reasons why the Baojun 310 AMT can start but not move when shifted into gear are: 1. Incorrect signal from the transmission shift valve position sensor; 2. Malfunction of the transmission solenoid valve and electronic module; 3. Insufficient transmission fluid or low internal oil pressure; 4. Brake lock-up preventing the wheels from moving forward, with abnormal noise when accelerating; 5. Handbrake not released or not fully released, or engine failure. Taking the 2020 Baojun 310 1.2L Manual Super Value model as an example: it is a compact 5-door, 5-seat hatchback with dimensions of 4032mm in length, 1680mm in width, and 1450mm in height, a wheelbase of 2550mm, and equipped with a 5-speed manual transmission.
I've repaired many AMT system vehicles, and issues like the Baojun 310 not moving after gear engagement are often caused by transmission component failures. AMT is essentially a semi-automatic transmission, where control module or hydraulic actuator malfunctions are common—for instance, an actuator getting stuck and failing to pull the clutch, resulting in unsuccessful gear shifting. Insufficient or contaminated fluid can also cause system failure, so checking the transmission fluid level and quality should be the first step. If the electronic control unit malfunctions or sensor signals are interrupted, it can similarly prevent the vehicle from moving. It's advisable to use an OBD scanner to check for error codes, and don’t overlook the impact of low battery voltage, which can lead to system power shortages and misjudgments. Regular oil changes and transmission maintenance can prevent such issues, especially as the vehicle ages, making it more prone to these problems. Getting a professional inspection at a shop early on is the most reliable approach.
