Why does the car jerk when accelerating?
2 Answers
The reasons why the car jerks when accelerating: 1. The throttle and clutch are not coordinated properly during gear shifting; 2. Excessive engine carbon deposits; 3. Incomplete fuel combustion, affecting power output; 4. Insufficient fuel pump pressure; 5. Clogged or leaking fuel filter. The throttle, also known as the accelerator pedal, primarily controls the opening of the engine throttle valve, thereby regulating the engine's power output. With the continuous development of automotive electronic technology, electronic throttles are becoming increasingly widespread. When the driver presses the electronic throttle's accelerator pedal, it essentially sends a throttle pedal position sensor signal to the engine ECU.
I've experienced a jerky acceleration while driving, where the car suddenly lurches forward as if being pushed. As a daily commuter, this issue is quite common and is often caused by aging spark plugs leading to uneven ignition, clogged fuel injectors, or a dirty air filter restricting air intake. A malfunctioning fuel system can cause the engine to misfire, resulting in jerky movements. Last time, replacing the air filter myself improved the situation significantly; during regular maintenance, checking the ignition components and fuel lines to prevent buildup is key. Ignoring the issue not only increases fuel consumption but may also lead to internal engine damage, raising repair costs. When problems arise, start by checking simple components, and seek professional diagnosis for serious issues to maintain vehicle health and extend its lifespan.
