Ranger 2WD V6-245 4.0L VIN X SFI (1997)
Pressure Regulating Solenoid: Description and Operation
DESCRIPTION:
The electronic pressure control (EPC) 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 EPC which regulates transmission line pressure and line modulator pressure. This is done
by producing resisting forces to the main regulator and line modulator circuits. These two pressures control clutch application pressures.
SYMPTOMS:
Maximum EPC pressure, harsh shifts and engagements, may set a false VSS code. Zero EPC pressure-no 2nd and 4th gear, slips in 1st and 3rd
with high input torque.
DIAGNOSTIC TROUBLE CODES:
P1746*, P1747*.
*
Output circuit check, generated only by electrical conditions
