What Causes Loud Transmission Noise?

1 Answers
KeeganFitz
07/29/25 4:10pm
Transmission noise can be attributed to the following specific reasons: 1. Severe carbon buildup: Carbon deposits can cause incomplete combustion of gasoline, leading to engine shaking. Engine carbon buildup significantly impacts the vehicle, making cold starts difficult, meaning the engine struggles to ignite. Severe combustion chamber carbon buildup can even cause cylinder knocking, produce noises during low-speed acceleration, damage pistons and crankshafts, and lead to engine overheating, severely compromising vehicle safety. 2. Overloaded transmission operation: Overloading the transmission can degrade the quality and frictional properties of transmission fluid, increasing friction and wear, which results in transmission noise. Additionally, sludge (contaminants or dirt) can form inside the transmission (e.g., in the valve body), causing issues like jerking, gear slippage, impact, slipping, abnormal noises, delays, overheating, and oil leaks. If not addressed promptly, the transmission may be rendered useless.
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