2. Dirty Transmission Fluid. Contamination of transmission fluid from clutch material or other debris can cause the fluid to become less effective and cause the transmission to jerk.
3. Failed Transmission Control Module (TCM). The TCM is responsible for controlling the transmission's shift patterns. A faulty TCM can cause the shifting to occur at the wrong time or in the wrong way, causing a jerking motion.
4. Worn Clutch (Manual Transmission). A worn clutch can cause slipping, which can result in a jerking motion.
5. Faulty Driveshaft. A driveshaft that is out of balance, or has faulty CV (constant velocity) joints can cause vibrations that can be felt as jerking.
6. Bad Engine Mounts. Engine mounts that are worn out or damaged may not properly absorb the engine's vibrations, causing the car to jerk when accelerating.
7. Faulty Oxygen Sensor. A faulty oxygen sensor can provide incorrect data to the engine control unit (ECU), causing the ECU to adjust the fuel mixture incorrectly, resulting in a jerking motion.
8. Spark Plug Issues. Faulty spark plugs, such as worn-out or dirty spark plugs, can cause misfires that can result in a jerking motion.
9. Fuel Injector Problems. A clogged or faulty fuel injector can cause a lack of fuel to the engine, resulting in a jerking motion.
10. Vacuum Leak. Vacuum leaks can affect engine performance, leading to a jerking motion.
