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What Causes Jerking When Starting an Automatic Transmission Car?

1 Answers

MacJuniper

07/29/25 7:00am

The reasons for jerking when starting an automatic transmission car are as follows: 1. Internal clutch pressure leakage in the transmission: Check for clutch damage and repair promptly. 2. Blocked or unsmooth transmission oil passages: Wear in the oil passage plate, long-term lack of transmission fluid replacement, reduced lubrication effectiveness, excessively dirty transmission filter leading to poor filtration, allowing wear particles to enter the valve body. 3. Insufficient transmission fluid level: Verify whether the transmission fluid has been filled to the specified level. For vehicles with a transmission dipstick, check whether the dipstick reading is within the specified range when the engine is running. 4. Solenoid valve damage: Sludge in the transmission fluid circulating within the transmission can block oil passages in the valve body, causing jerking issues. Prolonged operation under these conditions may lead to transmission overheating, impact, slippage, and other related problems.

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