S 320 SWB (140.032) L6-3.2L (104.994) (1994)
Shift Solenoid: Description and Operation
PURPOSE
The upshift delay switchover valve (Y3/3) controls the vacuum to the control pressure cable element.
OPERATION
The HFM-SFI control module controls the switchover valve. When the valve is energized, manifold vacuum reaches the pressure cable vacuum
element and delays the transmission upshift point.