What is the reason why the FAW Weizhi semi-automatic gear cannot be engaged?

[StDelaney]

Here are the reasons why the FAW Weizhi semi-automatic gear cannot be engaged: 1. Solenoid valve: Caused by the solenoid valve, which has a small valve core that operates by electric current, similar to the working valve in the valve body. This leads to unstable oil pressure regulation and uneven switching. 2. Mechanical failure: Mechanical failure caused by internal wear of the transmission. 3. Brake clutch: Slippage caused by brake clutch pressure leakage, or abnormal data reading due to sensor issues. 4. ECU failure: Sensor or ECU problems can cause the transmission to lock. Restarting the ignition will allow the vehicle's computer to re-detect the transmission data, and the issue may be resolved after restarting.

[VonJake]

I also experienced trouble shifting gears when driving a FAW Vizi. That time on the highway, no matter how hard I pushed, it wouldn't budge. Later, after inspection, it was found that the motor in the shift mechanism was stuck, or the transmission control module had failed—both common issues in AMT systems. Sometimes, insufficient lubrication can make the gear lever stiff, or internal wear and deformation of the linkage can prevent it from locking into place. At the time, I tried turning the car off and restarting it, and after a few attempts, it surprisingly engaged again. But for safety, I immediately went to a repair shop. The professional mechanic diagnosed it with a computer and replaced the faulty parts, which completely fixed the issue. After daily drives, remember to check the transmission fluid to avoid such headaches—after all, not being able to shift properly is really frustrating. If you encounter similar issues, don't push through it; find a reliable repair shop to inspect the electronic control system to prevent small problems from turning into big troubles.

[AlanLynn]

I think the inability to shift gears is mostly caused by internal transmission issues. For example, my Weizhi AMT transmission once experienced delayed response from the shift motor or valve body failure, which locked the gears and prevented shifting. Sometimes, if the oil pressure isn't high enough or the filter screen is clogged, the oil can't lubricate the shifting mechanism in time, causing the lever to get stuck. If the shift lever sensor is broken and sends inaccurate signals, the system won't recognize the correct gear position. In such cases, don't force it to avoid damaging more parts. I make it a habit to regularly check the transmission fluid and change it no later than the manufacturer's recommended interval of two years or around 40,000 kilometers. If you encounter difficulty shifting, try gently rocking the steering wheel left and right or switching to neutral a few times before trying again—this might temporarily resolve the issue, but long-term fixes require replacing the faulty components. Remember, safety comes first; if the gears get stuck, stop the car promptly.

[SimonDella]

My Vizi had this issue before, it was really dangerous. The inability to shift gears might be due to a broken spring in the shift lever or a failed sensor, causing the system to not receive signals and the gear to get stuck in P. At that time, I quickly pulled over, turned on the hazard lights, and called for help. A simple trick is to push the gear lever back to its original position and restart the engine, which sometimes provides a temporary fix. During the repair, it was found to be either a poor wire connection or insufficient oil. I recommend everyone to check the transmission condition before driving, don't wait until something happens to panic.

[StJonathan]

Hey, I know a bit about this issue. My Weizhi AMT had the same problem once where it couldn't shift gears. It's mostly due to the mechanical part of the gear shift lever getting stuck, or the electronic control module acting up. Sometimes, if you push the lever too hard while driving, it can wear out and deform, causing blockage. I've also noticed that if water gets inside the car after washing, the electronic control module tends to malfunction and cause similar issues. You can first check if the shift lever is loose or stuck, and gently tap it a few times to see if it loosens. If that doesn't work, get a mechanic to replace the parts—it's not too complicated to fix. For prevention, drive gently, avoid rough gear shifts, and regularly add transmission oil to maintain lubrication. Remember, if the gear won't engage, don't force it—it's bad for the car and dangerous.