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How to Identify Car Transmission Faults?

1 Answers

DelaneyLee

07/30/25 10:35am

Methods to identify car transmission faults are as follows: 1. Transmission slipping fault causes: The hydraulic oil level is too high, generating a large amount of bubbles after being violently stirred by the planetary gear set during operation; clutch or brake friction plates, brake bands are excessively worn or burnt. 2. Transmission oil leakage fault causes: Oil leakage leads to insufficient internal lubrication of the transmission and accelerates friction between gears, causing the transmission to malfunction. 3. Transmission jerking fault causes: Due to excessively high automatic transmission oil temperature, stubborn dirt and impurities form inside the transmission, causing blockages in the valve body, which hinders the smooth movement of solenoids and disrupts the sequential regulation of oil pressure, resulting in transmission jerking. 4. Transmission abnormal noise fault causes: Under prolonged high-temperature conditions, the anti-wear and lubricating properties of transmission oil degrade, leading to wear or severe wear of internal transmission components such as bearings and gears, or damage to gear sides.

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