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What Causes the Jerking During Rapid Acceleration in the Levin?

2 Answers

LaNolan

07/24/25 9:08pm

There are many reasons for car jerking. Below are specific explanations for the causes of jerking: 1. Jerking sensation: The engine is definitely involved. Ignition, air intake, and fuel injectors collectively determine fuel combustion, which is also the power source of the engine. If the air intake decreases, ignition weakens, or the amount of fuel injected reduces, the power will be insufficient, leading to a jerking sensation. 2. Clutch: This occurs in vehicles equipped with manual transmissions, where the most common manifestation is vehicle shaking during the process of starting from a standstill and slowly releasing the clutch pedal.

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VonLucia

08/10/25 2:32pm

My understanding is that sudden jerking during rapid acceleration in the Toyota Levin is usually related to the transmission or engine system. During rapid acceleration, the engine load suddenly increases. If the CVT transmission has insufficient oil pressure or worn components, it may cause the chain to slip, resulting in uneven power delivery. Additionally, aging spark plugs or faulty ignition coils can affect combustion efficiency, causing engine power fluctuations that lead to jerking. Moreover, insufficient fuel pump pressure or clogged fuel injectors can restrict fuel supply, exacerbating acceleration instability. I've noticed that many car owners neglect the transmission fluid replacement cycle, and deteriorated oil increases the risk of failure. It is recommended to perform regular maintenance, checking or replacing transmission fluid and spark plugs every 40,000 kilometers to prevent such issues. If jerking occurs, avoid forcing the car to drive and seek professional diagnosis to read fault codes as soon as possible to prevent further damage.

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