What is the reason for starting to shake and refuel without shaking?

The phenomenon that the Pacific car network starts to shake and the fuel supply does not shake is the performance of abnormal engine failure. The reasons are serious carbon deposition inside the engine, ignition system problems, unstable fuel pressure and aging internal parts of the engine.

Engine carbon deposition is serious: it is often manifested as throttle carbon deposition, nozzle carbon deposition, spark plug carbon deposition and piston carbon deposition. When these carbon deposits accumulate to a certain extent, they will absorb the heat of combustion and even cause deflagration and detonation. If the nozzle is blocked, the atomization effect of the nozzle will be poor, resulting in soot dripping, which not only consumes oil but also pollutes the environment.

Ignition system problems: Generally, the spark plug has too much carbon deposit and the ignition voltage is insufficient, which leads to fire, even single cylinder or multi-cylinder fire, and the engine will shake due to insufficient power. When the jitter is serious, it will be between flameout and ignition.

Unstable fuel pressure: The fuel system includes fuel tank, gasoline filter, gasoline pump, oil-gas separator, tubing, fuel gauge and other auxiliary equipment. If one of them has problems, blockage or oil leakage, the oil pressure will be unstable and the engine power will shake intermittently. It is possible that the oil pressure will not shake when oil is supplied, but the status quo of no oil supply remains unchanged.

Aging of engine internal parts: Usually, this situation will only appear after the vehicle has been used for a certain number of years or mileage, and the engine power jitter is serious. Usually, this kind of car is easy to shake at low speed, and the symptoms are improved to some extent after refueling, but it consumes a lot of oil. (Photo/Text/Photo: Pacific Auto Network Cao Bo)