What are the symptoms of a faulty transmission cooler?

1 Answers
DiAlexa
07/24/25 2:11am
When the transmission cooler fails, high temperatures can degrade the frictional properties of ATF (Automatic Transmission Fluid), increasing friction and wear, which leads to transmission noise. Additionally, sludge may form inside the transmission, causing jerking or harsh shifting. If temperatures exceed 120 degrees Celsius, rubber sealing materials begin to harden and age, leading to leaks and a drop in hydraulic pressure. All transmissions contain transmission fluid. In manual transmissions, this fluid serves to lubricate and cool. In automatic transmissions, it also transmits power, and the control mechanisms rely on this fluid to function properly.
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