The solenoid valve of the car is broken, can appear what symptom.

Solenoid valve failure refers to the valve closure failure controlled by electromagnetic coil pulse. Solenoid injection valve, idle control solenoid valve, ignition device solenoid coil, automatic transmission solenoid valve and other work, will directly affect the car fuel injection, ignition, idle, start the normal completion of the work.

Solenoid Injector Solenoid Valve Is Broken Symptom

Electromagnetic injector is composed of a group of electromagnetic coil, armature switch, injection needle and valve seat. Because they work frequency is very high (such as engine speed 6000r/min, every minute is repeatedly connected and disconnected 3000 times or 6000 times), a long time, sometimes because the electromagnetic coil work bad, needle valve stuck not injection, cause gasoline atomization bad or not atomization, so that the engine works badly or can not work. If the fault is found when the car runs 10,000 ~ 15,000 km, it can focus on checking the working condition of the fuel injector and spark plug. When the cold start is difficult, it is necessary to focus on checking the working condition of the injector and the related connection circuit, because the cold start injector works badly or does not work, directly affecting the start thickening effect.

Automatic Transmission Solenoid Valve Is Ready, The Car Will Have What Symptoms

For electromagnetic valve is "long" in the whole transmission control unit time, and it is the change of the internal hydraulic transmission is an important node (actually we automatic transmission gear change also is the change of oil pressure at the end of the day), so the electromagnetic valve is out of order, will lead to many problems, such as transmission shift and sliding, into the shift shock, unable to shift up and so on.

Automatic Transmission Solenoid Valve Quality Inspection

Simple and crude, to test the electromagnetic valve of method is: first to the electromagnetic valve controlled media (liquid, gas, air pressure, the pressure value used for electromagnetic valve pressure range of intermediate value), and then to the solenoid coil electricity, if be controlled medium from sense to break or from off to on the change of the state, the electromagnetic valve is ok, otherwise it is a problem.