How Do Transmission Solenoids and Sensor Work?


          The transmission solenoid is proven to be an essential component of a working transmission. Any solenoid that starts to fail spells only trouble. This article will explain how the transmission solenoid works including the common issues. Even the importance of replacement is also discussed briefly.

The transmission regulates the solenoid that communicates with an auto when it shifts gears. This is also once the auto is equipped with automatic transmission. Once the shifting in the auto’s engine experiences some issues, there might be a problem in the solenoid. The transmission solenoid that loses sensitivity now demands replacement or repair.

Despite the latest electronic transmissions, the working principles which they follow are still the same. They also need a more accurate regulation on the pressure. Outdated styles and designs for automatic transmission only utilize single line with pressure regulated solenoid, altering pressure all throughout the transmission.

As per the new styles, they demand multiple pressure solenoids. The transmission solenoids are allowed to use the most precise pressure controls.  It is still the pressure of the shift that affects the quality of the shift. When there is too much power, the shifting becomes rough. But, when there is the right amount of pressure, it only leads to the overheating of the clutches.

Once the shifting shows some issues, you can bring your auto to a reliable auto mechanic to check the engine’s troubleshooting codes. Daily inspection and regular maintenance can simply help you out in the early diagnosis of mechanical problems. These can also help save you a lot of money from future repairs.


Issue with Transmission Solenoid

           The transmission solenoid may fail mainly because of some electrical problems. This may also be due to the messy lubricant. Any shift in the transmission fluid pressure may potentially lead to many several issues such as:

Transmission will not down shift

Erratic shifting

Serious shifting delay

Stuck in neutral

The fact that the transmissions solenoids are linked to the electrical system of the car, the ECU usually registers a wrong code and activates the check engine light. This is also especially when something goes wrong.

When this occurs, the transmission may turn into its fail or limo mode. This is the time that it will engage in restricting the speed of the car without bringing it to a halt.  The very first thing that a mechanic must take a closer look is the error code.

Through the use of a special tool, he will determine the main source of transmission solenoid issue. It can be as easy as a bad ground. It may also be as complicated as a botched solenoid pack or group of individual shift solenoids.


Transmission Solenoid Replacement

           In many cases, the transmission solenoids are situated inside the oil pan. These are also linked to the body of the valve. Depending on what a person drives, the technicians may still be capable of replacing only the botched shift solenoid.

As the shift solenoids come in their multiple unit packs and as unexpected issues come up, the whole pack should be replaced.