A/T - 4R70W (Remanufactured) Delayed or No 2-3 Upshift

Article No.
99-9-6

05/17/99

FORD:
1994-1997 THUNDERBIRD
1995-1998 CROWN VICTORIA
1996-1998 MUSTANG

LINCOLN-MERCURY:
1993-1998 MARK VIII
1994-1997 COUGAR
1995-1998 GRAND MARQUIS, TOWN CAR

LIGHT TRUCK:
1994-1998 ECONOLINE, F-150
1996-1998 EXPLORER
1997-1998 EXPEDITION, F-25O LD, MOUNTAINEER

This concern is ONLY for vehicles with Ford Quality Remanufactured (FQR) 4R70W Transmission Exchange Units With Julian build dates between 062-97 And 04099 (corresponding serial numbers are between R0475797 and R0771887).

ISSUE
A delayed or no 2-3 upshift, primarily when the transmission is cold, may be evident on some vehicles In some cases, Diagnostic Trouble Code (DTC) P0782 may also be present. This may be caused by fluid pressure leakage past the larger diameter seal of the 2-3 accumulator.

ACTION
Replace the 2-3 accumulator piston using a revised piston. The revised piston will increase seal/bore interference, eliminating any internal leak relating to the 2-3 accumulator piston reducing the possibility of 2-3 upshift concerns. Refer to the appropriate Service or Workshop Manual for replacement procedure.

PART NUMBER PART NAME

F7AZ-7H292-AB Piston

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATION DESCRIPTION TIME

990906A Replace Accumulator 1.0 Hr.
Piston

DEALER CODING
CONDITION
BASIC PART NO. CODE
7H292 42

OASIS CODES: 501000, 504000