The unstable operation of the engine will directly affect the power and economy of the vehicle, as well as ride comfort, increase pollutant emissions and so on.

Therefore, when our vehicle is unstable and the engine is unstable, we have to judge the cause of its malfunction and restore it to its normal working condition.

Today, we come to understand with you, and if the engine is not working smoothly, how to troubleshoot the system?.

Here are some tips for troubleshooting

1. The fuel pressure system shall be tested

Idling engine to fuel rail pressure monitoring using special diagnostic software, contrast control difference between the fuel rail pressure and measurement of rail pressure is more than 100bar, if more than a description of rail pressure instability, need for investigation of the fuel system.

2, check each cylinder injector

Idle engine running, use special diagnostic software to perform electronic cylinder broken test.

If a broken cylinder, change the sound operation and speed beiben heavy truck fittings engine changes in Baotou than other large broken cylinder injector, the injector cylinder may be a problem, proposed injector oil return test.

In addition, the software can read the engine's fault code and observe whether there is a fault code associated with the injector.

If there is a diagnosis tree based on the fault code, troubleshoot and clear the fault code.

3, and secondly, check the cylinder pressure, intake and exhaust valve clearance, work conditions, air intake manifold leaks, and so on

Causes the Baotou north to rush the heavy truck parts engine to work the unsteady reason to be many, therefore, in actual work also must carry on the analysis according to the concrete situation, can precisely find the fault reason and solves the question method.

Hope that these tips to judge the fault, to help the majority of card friends. As the saying goes, seven points maintenance three points repair, only regular maintenance and inspection Baotou North rush heavy truck parts and components, in order to extend the service life of engines and vehicles.