Electronic Pressure Control Solenoid

WARNING: This page is about a different car, the 2002 Ford Escape, 2001 Mazda Tribute, and 2001 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

This solenoid is a Variable-Force Style (VFS) solenoid. The VFS-type solenoid is an electro-hydraulic actuator combining a solenoid and a regulating valve. It supplies Electronic Pressure Control (EPC) solenoid which regulates transaxle line pressure and line modulator pressure. Pressure regulation is done by producing resisting forces to the main regulator and line modulator circuits. These two pressures control clutch application pressures. The PCM has an adaptive learn strategy to electronically control the transaxle which will automatically adjust the shift feel. If the battery has been disconnected for any reason, it will need to be kept disconnected for approximately 20 minutes to reset the adaptive shift pressure strategy or the scan tool should be used to perform the Keep Alive Memory (KAM) reset. If EPC solenoid fails, transaxle will operate in fail-safe mode. Line pressure will go to maximum pressure. Harsh engagements and harsh upshifts and downshifts will result.