How to Solve the Jerking Sensation in Automatic Cars?
3 Answers
The cause of the jerking sensation in automatic cars is related to the transmission oil. Below are the relevant explanations for the causes of jerking in automatic cars: 1. Internal clutch pressure leakage in the transmission: Check if the clutch is damaged and repair it. 2. Blockage or poor flow in the transmission oil circuit: Wear in the oil circuit plate, long-term lack of transmission oil change leading to deterioration and reduced lubrication effect, dirty transmission filter causing poor filtration, allowing wear particles to enter the valve body. 3. Insufficient or excessive transmission oil: Confirm if the transmission oil is at the standard level. Both insufficient and excessive transmission oil can cause this issue. For vehicles with a transmission oil dipstick, check if the oil level is at the standard mark when the vehicle is running. 4. Damaged solenoid valve: Sludge in the transmission oil can cause jerking issues, which may lead to a series of transmission problems such as overheating, impact, and slipping over time.
My car has been feeling jerky during acceleration recently, like a tractor. It’s probably because the automatic transmission fluid hasn’t been changed for too long—I last changed it 30,000 kilometers ago. Sudden hard acceleration worsens the shuddering, so I’ve been trying to drive more smoothly, gently pressing the accelerator when starting. Dirty spark plugs or faulty ignition coils could also cause shaking. It’s safer to scan for trouble codes at a repair shop—costs a few hundred bucks but worth it. Ignoring this issue makes highway driving even more uncomfortable, ruining the mood and increasing fuel consumption. Check the fluid color every 5,000 kilometers; replace it if it turns black. Driving habits matter—don’t treat it like a race car. Gentle operation protects the vehicle.
Automatic car jerking is mostly due to transmission system failures, such as torque converter wear or clutch plate sticking. When I disassemble the car, I first check the transmission fluid condition - if it's thick with a burnt smell, it needs replacement. Spark plug carbon buildup or ignition issues can cause engine vibrations to transmit to the transmission, and installing new spark plugs might solve it. DIY fluid changes are convenient and quick - just buy a kit and do it yourself. However, for Electronic Control Unit (ECU) problems, diagnostic tools are needed to read data streams and identify faults. Regular maintenance with oil and filter changes every 40,000 km is crucial to prevent minor issues, ensuring smoother acceleration and more linear power delivery.
