A/T - AOD 3-4 Accumulator Change

SIL 89-10 (Mar)

FORD AOD

SUBJECT: 3-4 Accumulator




The 3-4 accumulator used in prior model year transmissions is no longer used in 1989 models, except on vehicles equipped with 5.8 liter engines.

The accumulator feed hole in the valve body has been blocked to eliminate the need for a 3-4 accumulator. There is still a bore in the case for the 3-4 accumulator on transmissions that do not have it.

Note
Use only a 1989 valve body in a 1989 AOD transmission. 1989 valve bodies can be used to service all prior model year transmissions, even if a 3-4 accumulator is present.