Solenoid valves, automatic transmission Peugeot 307
Solenoid valves are important components of the Peugeot 307 automatic transmission. They control the flow of transmission fluid through the hydraulic control unit, thereby regulating the operation of the automatic transmission.
Types of electromagnetic automatic transmission valves Peugeot 307
The Peugeot 307 automatic transmission uses the following types of solenoid valves:
* Shift valves (gear shift)
* Pressure control valves
* Flow control valves
Functions of solenoid valves
* Shift Valves: Shift gears by directing transmission fluid to their respective clutch packs.
* Pressure control valves: Regulate the transmission fluid pressure in various channels of the hydraulic control unit.
* Flow Control Valves: Control the flow of transmission fluid through specific passages to ensure smooth gear changes and proper operation of the transmission.
Location of solenoid valves
Solenoid valves are located inside the automatic transmission hydraulic control unit, which is usually attached to the gearbox housing.
Signs of malfunctioning solenoid valves
Faulty solenoid valves can cause various problems with automatic transmission operation, including:
* Slipping or jerking when shifting gears
* Gear shift delays
* Sharp impacts when shifting gears
* Automatic transmission goes into emergency mode
Diagnostics and replacement of solenoid valves
To diagnose faulty solenoid valves, a fault code scanner (OBD2) is usually used. If the fault code indicates a valve problem, further diagnostics must be performed to determine the specific valve at fault. Replacing faulty solenoid valves requires special skills and equipment, so contact a qualified mechanic.
Maintenance of solenoid valves
Although automatic transmission solenoid valves are generally reliable, the following maintenance recommendations are recommended to ensure trouble-free operation:
* Change the transmission fluid and filter regularly. Dirty fluid can clog the valves and cause them to wear out prematurely.
* Avoid aggressive driving, which can create additional stress on the automatic transmission and solenoid valves.