Low oil pressure is not necessarily an oil problem!

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Low oil pressure is not necessarily an oil problem!

In the process of driving, low oil pressure is a very serious abnormal fault, not only can not work normally, but also may cause damage to the engine and other equipment.

Many people's first reaction is, since the oil pressure is low, then there must be a problem with the oil, but in fact, this is not the case, after the occurrence of such a failure, to carefully check, the cause of this failure is not a lot, it is not necessarily the cause of the oil.

underfuel

The insufficient amount of oil will directly lead to the oil output of the oil pump becoming smaller, or because of the insufficient amount of oil leading to the air, the oil pump can not work normally, so that the oil pressure becomes smaller.

Engine overheating

Engine overheating, because the long-term work leads to overload, so that the oil intensifies thinning, deterioration, aging. This results in a decrease in viscosity, leakage from the machine gap, and reduced pressure.

Radiator failure

If a radiator leaks, there are two forms of pressure loss. One is an external leak, where the oil contaminates the surface of the engine. Resulting in insufficient work, pressure drop. The other is internal leakage, oil into the tank, the engine will overheat, the oil will become thin, resulting in a drop in pressure.

The filter is blocked

If the oil filter is blocked, the pressure will also be reduced. Because when the safety valve is opened, the oil pressure in front of the filter will increase, and the oil amount in the oil passage will be reduced, resulting in a reduction in pressure.

Component wear

If the parts of the oil pump wear, such as the pump shaft and bushing, the gear end face and the pump cover and other parts because of wear after the gap becomes larger, resulting in a smaller oil volume, thereby reducing the pressure.

The filter and oil passage are blocked

If the oil is used for a long time, it will become dirty, thus blocking the filter screen and oil passage of the oil suction pan. Poor flow of the oil passage to the pressure sensor will result in a drop in pressure.

Having said so much, we must understand that the oil pressure is reduced, and sometimes the "suspect" oil is not the murderer, right? Therefore, when such a failure occurs, it must be carefully investigated, or directly find a professional maintenance technician to solve the fault for you.