What are the reasons for lack of power and jerking during acceleration?
2 Answers
The reasons for lack of power and jerking during acceleration are as follows: 1. Lack of power during acceleration: Jerking is mainly caused by the engine and clutch. The lack of power during acceleration is closely related to the engine, while ignition, intake, and fuel injectors collectively determine fuel combustion, which is also the power source of the engine. Therefore, the lack of power naturally relates to these systems: ignition, intake, and fuel injectors. 2. Jerking sensation in the car: More factors can be attributed to the clutch. Theoretically, except for CVT transmissions, other transmissions will have a jerking sensation. CVT transmissions, also known as continuously variable transmissions, as the name suggests, do not have the concept of gears, so naturally, CVTs do not experience gear-shifting jerks. However, in reality, due to manufacturer tuning, even continuously variable transmissions may exhibit jerking sensations.
I've experienced the issue of sluggish acceleration with jerking sensations in my car! That time on the road, I clearly felt the lack of power when pressing the accelerator, and the engine was stuttering as if struggling for breath. I discovered it was due to aging spark plugs - uneven ignition over time caused cylinder misfires, resulting in power loss and jerking sensations. It could also be faulty ignition coils or a weak fuel pump, where insufficient fuel pressure causes intermittent fuel supply leading to jerking. Additionally, a clogged air filter restricting airflow prevents the engine from getting enough oxygen, making acceleration feel weak. My advice is to start by inspecting the spark plugs - remove them to check for erosion, or listen for consistent fuel pump operation. Don't underestimate this issue - accumulated problems can affect engine lifespan and safety. It's best to visit a professional shop for diagnostic trouble code scanning, unlike me who delayed repairs and ended up spending a fortune later.
