Aerostar AWD V6-183 3.0L (1991)
Shift Solenoid: Description and Operation
Shift Solenoid 3-4 (SS 3-4)
The 3-4 shift solenoid is used to control the 3-4/4-3 shift valve.
Transmission Function: Used to shift from third gear to fourth gear, and fourth gear to third gear.