What is the reason for the yellow light of the truck engine fault light?

The existence of carbon deposits at the air inlet and piston top will lead to poor atomization, insufficient combustion and light pollution. When the cold car starts, especially when the weather temperature drops sharply, the pollution lamp will be turned on because of the temperature correction problem of the computer, but as long as the temperature drops to a certain temperature, it will be relatively stable without fluctuation.

Too much carbon deposit makes ignition difficult, which will lead to reverse breakdown of the ignition coil, resulting in poor ignition and incomplete combustion, which will pollute the lamp. A notable feature of this phenomenon is that when the ignition coil fails, the engine always shakes violently. If it is not shaken violently all the time, the ignition coil can be basically eliminated.

Precautions for truck engine

It should be noted that the vehicle needs to be lifted due to checking the transmission oil. When changing the oil, you can check the gearbox oil to see if it is necessary to change the gearbox oil. When replacing, it should be accurately measured to avoid the damage of gearbox parts caused by too much or too little oil.

In short, choosing high-quality engine oil and insisting on regular maintenance can not only ensure the driving safety of truck drivers, but also protect the engine under various road conditions, so that drivers can really travel without worry.