Engine failure of GAC hino 700 P 1 19F.

When the automobile engine is not working normally and the self-diagnosis system has no fault code output.

It is necessary to rely on the inspection and judgment of the operator to determine the nature and location of the fault. The author summarizes the common faults of automobile engines as follows:

Possible reasons for failure:

Ignition system failure: the ignition coil is not working properly, resulting in weak or no high-voltage spark.

Fuel injection system failure: there is no fuel in the fuel tank, the fuel pump is not working or the pump pressure is too low.

Air intake system failure: idle speed control valve or its control circuit failure; Air pipe of idle speed control valve is broken or connector leaks.

Engine failure is the abnormal operation of the engine due to defects in materials and technology, unreasonable design, manufacturing problems and improper operation during use. A mechanical failure.