What Causes Occasional Jerking During Normal Driving?

[Elliott]

Occasional jerking during normal driving can be caused by the following reasons: 1. Engine oil system: If the engine oil is insufficient for a long time, it may result in reduced power and increased fuel consumption in mild cases, or piston impact on the valves and mechanical damage to related components in severe cases. Additionally, a faulty fuel pump or clogged fuel filter can also lead to decreased engine power. 2. Engine intake system: The engine requires not only fuel but also air. If components such as the air filter or throttle valve are clogged or malfunctioning, causing insufficient air intake, it can result in poor acceleration, slow speed increase, and a jerking sensation. 3. Poor spark plug ignition: The ignition system should not be overlooked. If the spark plugs have poor ignition, leakage, or atomization issues, it can also affect the engine's acceleration.