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TSB
99-18-5
  • TRANSMISSION CONTROL INDICATOR LAMP (TCIL) - TCIL ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE (DTC) P0782 STORED IN MEMORY - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998 AND WITH 4R70W TRANSMISSION
  • TRANSMISSION - 4R70W - DELAYED OR NO 2-3 UPSHIFT - VEHICLES BUILT BETWEEN 3/15/1997 AND 12/31/1998
Publication Date: AUGUST 20, 1999

FORD:
1997-1999 CROWN VICTORIA, MUSTANG, ECONOLINE, EXPEDITION, EXPLORER, F-150, F-250 LD
LINCOLN:
1997-1998 MARK VIII
1997-1999 TOWN CAR
MERCURY:
1997-1999 GRAND MARQUIS, MOUNTAINEER

This TSB article is being republished in its entirety to revise the Service Procedure.

ISSUE:

A perceived 2-3 delayed upshift, primarily when the transmission is cold, may be evident on some vehicles. The Powertrain Control Module (PCM) strategy is designed to delay shifts in some vehicles when Transmission Fluid Temperature (TFT) is below approximately 21C (70F) for faster heater warmup. The 2-3 shift may be delayed approximately 14-24 km/h (9-15 mph) when compared to the shift speed charts listed in the appropriate Service or Workshop Manual. A leaking 2-3 accumulator may cause Diagnostic Trouble Code (DTC) P0782.

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