What are the symptoms of a faulty transmission oil temperature sensor in the ATSL?

2 Answers
OJulian
07/29/25 12:54am
ATSL transmission oil temperature sensor failure symptoms are as follows: Automatic gear disengagement: Due to the axial force generated by the meshing sliding gears or coupling sleeves during power transmission exceeding the locking force (tooth surface friction + shift fork self-locking force), the gear is automatically pushed from the meshed state to neutral position; axial force caused by component wear and housing deformation; insufficient gear meshing length, self-locking mechanism failure, reduced locking force. Gear confusion: Excessive clearance in shift lever-related components leading to inaccurate gear positioning. Shift lever vibration: Transmission gear radial or axial vibration reflected in the shift lever. Difficult shifting: Synchronizer synchronization elements or locking elements functional failure.
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RyanLee
08/12/25 5:06am
When I first drove the ATS-L, I encountered a transmission fluid temperature sensor issue with quite obvious symptoms. First, that yellow transmission warning light on the dashboard suddenly came on and stayed lit. When driving, the gear shifts felt weird—like the car hesitated during acceleration, was slow to upshift when it should, and sometimes even jerked, which I could feel sitting inside. It was even more annoying in traffic jams, with constant stop-and-go driving making the car shake noticeably. Another major issue was the screen showing abnormally high or low fluid temperatures, but when I touched the transmission oil pan by hand, the temperature felt normal. Once during a long trip, the car almost went into protection mode with speed limitation, which scared me into exiting the highway immediately. After inspection, it turned out the sensor was faulty and misleading the computer. I promptly replaced it with a new part, and the problem was completely resolved. The experience taught me: don’t underestimate these small faults—they can cause erratic transmission behavior, and long-term neglect may damage internal components. Now I’ve developed a habit of checking the dashboard and taking immediate action for any abnormal warning lights.
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