A/T - AOD 3/4 Shift Accumulator No Longer Required

89ford03

TRANSMISSION - AOD - 3/4 SHIFT ACCUMULATOR NO LONGER REQUIRED IN SOME 1989 BUILT TRANSMISSIONS
Article No. 89-4-6
FORD: 1989 MUSTANG, THUNDERBIRD, CROWN VICTORIA

LINCOLN-MERCURY: 1989 COUGAR, GRAND MARQUIS, MARK VII, LINCOLN TOWN CAR

LIGHT TRUCK: 1989 E & F-SERIES, BRONCO
ISSUE: The 3-4 shift accumulator used in prior model year "AOD" transmissions is no longer required in 1989 "AOD" transmissons except on vehicles with 5.8L engines. The accumulator feed hole in the main control assembly has been blocked so a 3-4 shift accumulator must not be installed.

ACTION: Only use a 1989 main control assembly to service a 1989 "AOD" transmission.
NOTE: DO NOT ATTEMPT TO INSTALL A 3-4 SHIFT ACCUMULATOR PISTON. THE ACCUMULATOR FEED HOLE IN THE MAIN CONTROL ASSEMBLY HAS BEEN BLOCKED, AND THE 3-4 SHIFT ACCUMULATOR IS NOT REQUIRED.

OTHER APPLICABLE ARTICLES: None
ARTICLES SUPERSEDED: 88-24-3, date 11/23/88.
WARRANTY STATUS: "INFORMATION ONLY"
OASIS CODES: 5200, 5300, 5970