What Are the Causes of Excessive Transmission Temperature?
2 Answers
Reasons for excessive transmission temperature: 1. The engine and coolant temperature are too high. Prolonged or overloaded operation of the engine can raise the coolant temperature, thereby affecting the transmission's heat dissipation. 2. Insufficient coolant in the radiator reduces the cooling system's heat dissipation efficiency. 3. Transmission clutch slippage generates additional heat, increasing the transmission temperature and degrading the transmission oil quality, which in turn accelerates transmission wear. 4. Thermostat sticking. If the transmission's thermostat is stuck, the oil cannot enter the cooling system, preventing the heat generated by the transmission from being cooled. 5. Insufficient transmission oil. Low transmission oil levels can increase gear shift jerking and reduce cooling effectiveness. 6. Clogged radiator grille. A blocked grille prevents timely dissipation of the heat generated by the transmission.
I often encounter the issue of excessive transmission temperature during daily driving, mainly due to several reasons: Low transmission fluid level leads to poor cooling effect, causing the car to heat up quickly, like during my long-distance trip when I didn't check and the temperature soared. There are also cooling system problems, such as the fan not working or the radiator being blocked, preventing airflow and causing temperature buildup. Not to mention driving habits, like constantly towing heavy loads or frequent rapid acceleration and braking, which overwork the transmission and inevitably raise its temperature. Additionally, poor oil quality is another factor; using inferior oil makes it prone to oxidation and failure. I've found that whenever I notice an abnormal temperature rise, I immediately find a place to stop, as waiting could damage the transmission and make repairs much more troublesome.
