Transmission solenoid valve failure symptoms and treatment methods

Solenoid valveAs the name suggests, it is a switching device that uses electric current to generate electromagnetic force to control the valve. It is a type of actuator. . Solenoid valves can be divided into three categories structurally: direct-acting solenoid valves, step-by-step direct-acting solenoid valves and pilot-operated solenoid valves. The selection of solenoid valves should follow the four principles of safety, reliability, applicability and economy. The function of the transmission solenoid valve is to generate electromagnetic force through current to control the mechanical valve to switch the oil channel and adjust the oil flow pressure. The transmission solenoid valve mainly controls the clutch and brake of the transmission.

There are also common faults of the transmission solenoid valve. In normal vehicle maintenance, maintenance of the transmission cannot be ignored. The following are common faults of the transmission solenoid valve and their solutions:

Fault:The solenoid valve does not work after it is energized. Work;Processing method: Check whether the power cord is in poor contact, check whether the power supply voltage is within a reasonable range, and check whether the coil is detached or short-circuited. If the problem cannot be solved in the end, consider replacing the solenoid valve.

Fault:Electromagnetic The valve cannot be closed;Treatment method: If the sealant of the main valve core or the iron core is damaged, the sealant must be replaced. The solenoid valve core must be cleaned. The spring must be replaced due to fatigue and deformation. Cleaning the holes in the solenoid valve cannot solve the problem in the end. If the problem occurs, consider replacing the solenoid valve.

Replacing the transmission solenoid valve requires expensive disassembly and assembly work in addition to the value of the solenoid valve itself. There are many types of solenoid valves themselves, and the price is even more irregular. As for replacementSolenoid ValveThe disassembly and assembly time cost is even more difficult to estimate. The difficulty of disassembly and assembly of different types of transmissions and the ease of replacing the solenoid valve are different. These factors will affect the final replacement cost. It is recommended to inquire about the specific replacement cost of the transmission solenoid valve at the brand dealer. You can also inquire at other professional transmission repair sites. In this way, you can understand the general market about the cost of replacing the transmission solenoid valve. Quotes.

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