RAM 2500 Truck 4WD L6-5.9L DSL Turbo VIN C (2004)
Both the accumulator and the 3-4 accumulator function the same. Line pressure is directed to the small end of the piston when the transmission is
placed into a DRIVE position (Fig. 70), bottoming it against the accumulator plate. When the 1-2 upshift occurs (Fig. 71), line pressure is directed to
the large end of the piston and then to the kickdown servo. As the line pressure reaches the accumulator, the combination of spring pressure and line
pressure forces the piston away from the accumulator plate. This causes a balanced pressure situation, which results in a cushioned band application.
After the kickdown servo has become immovable, line pressure will finish pushing the accumulator up into its bore. When the large end of the
accumulator piston is seated in its bore, the band or clutch is fully applied.
NOTE: The accumulator is shown in the inverted position for illustrative purposes.
INSPECTION
Inspect the accumulator piston and seal rings. Replace the seal rings if worn or cut. Replace the piston if chipped or cracked. Check condition of the
accumulator spring. Replace the spring if the coils are cracked, distorted or collapsed.
