The line pressure solenoid in an automatic transmission (AT) is responsible for regulating the hydraulic fluid pressure in the transmission. It controls the traction force transmitted between the clutches and brake bands, which affects gear shifting and the smoothness of the vehicle.
Line Pressure Solenoid Functions:
*Regulating hydraulic fluid pressure according to the specified gear shift mode
* Creating the necessary pressure to operate clutches and brake bands
* Ensuring gradual gear changes for smooth vehicle operation
* Protection of automatic transmission from overloads and slippage