RAM 1500 Van V8-5.2L VIN Y (1999)
Overdrive Assembly: Description and Operation
Quick Fill Valve
The 3-4 quick fill valve provides faster engagement of the overdrive clutch during 3-4 upshifts. The valve temporarily bypasses the clutch piston feed
orifice at the start of a 3-4 upshift. This exposes a larger passage into the piston retainer resulting in a much faster clutch fill and apply sequence. The
quick fill valve does not bypass the regular clutch feed orifice throughout the 3-4 upshift. Instead, once a predetermined pressure develops within the
clutch, the valve closes the bypass. Clutch fill is then completed through the regular feed orifice.
