What is the reason for the AMT transmission not responding when shifting gears and staying in N gear?
3 Answers
There may be several reasons why the AMT transmission does not respond when shifting gears: 1. Fault caused by the solenoid valve: The small valve core inside the solenoid valve relies on current to operate, similar to the working valve in the valve body. This can lead to unstable oil pressure regulation and uneven switching. 2. Mechanical failure: This issue arises due to internal wear and tear in the transmission. 3. Slippage caused by brake clutch pressure leakage: This results in abnormal data readings by the sensor. 4. Fault in the computer board: Problems with the sensor or computer board can cause the transmission to lock in gear. Restarting the ignition will prompt the vehicle's computer to recheck the transmission data, and only a restart will resolve this sporadic fault.
The AMT transmission doesn't respond when shifting gears and keeps staying in neutral (N) position. I've encountered this issue several times, and the most likely cause is a problem with the transmission control unit. For instance, software freeze or sensor failure to send signals may cause the system to mistakenly think the car is still in park. Don't force shifting in this case - try turning off and restarting the engine first. Sometimes it's just like a smartphone freeze, and a reboot can restore normal function. Another possibility is poor wiring contact, especially likely to occur during rainy days or on bumpy roads. If restarting doesn't work, call a tow truck immediately for professional diagnosis with specialized equipment - don't waste time trying DIY repairs as this might cause more severe damage like clutch burnout. Also, remember to check battery voltage since the transmission may refuse to operate when voltage is too low. Developing regular maintenance habits can help prevent such troubles.
The AMT transmission isn't engaging gears and keeps staying in neutral. I suspect this issue is often related to the hydraulic system. Insufficient oil pressure from the hydraulic pump or leaking oil lines can prevent gear changes. You could try waiting a few minutes after starting the engine to let the oil warm up and see if there's any response, but avoid forcing the operation. Another common culprit is dirty or corroded contacts on the gear position sensor, causing the system to fail recognizing commands. I recommend parking in a safe place, opening the hood to check if the relevant wires and connectors are loose. Unplugging and cleaning them might help. If that doesn't work, head straight to a professional repair shop – don't risk driving and potentially damaging the transmission further. Warming up the system for a few minutes before driving can improve stability.
