RAM 2500 Truck 2WD L6-5.9L DSL Turbo (2008)
Regulator Valve in Reverse Position
The regulated line pressure in REVERSE is held at much higher pressures than in the other gear positions: 145-280 psi. The higher pressure for
REVERSE is achieved by the manual valve blocking the supply of line pressure to the reaction area left of land #4. With this pressure blocked, there is
less area for pressure to act on to balance the force of the spring on the right. This allows line pressure to push the valve train to the right, reducing the
amount of fluid returned to the pump's inlet, increasing line pressure.
KICKDOWN VALVE
Kickdown Valve - Wide Open Throttle
When the throttle valve is as far over to the left as it can go, the maximum line pressure possible will enter the throttle pressure circuit. In this case,
throttle pressure will equal line pressure. With the kickdown valve pushed into the bore as far as it will go, fluid initially flows through the annular
