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November 1, 1998 Service bulletin

Some vehicles equipped with 4R100 transmission may exhibit a flashing tcil with diagnostic trouble code...

Ford technical service bulletin 12104 for 1999 Ford F-150, 1999 Ford Expedition and 1999 Ford F-250 and others.

Bulletin number
12104
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Some vehicles equipped with 4r100 transmission may exhibit a flashing tcil with diagnostic trouble code dtc 1728 in memory. Mjs

Owners of these vehicles have filed 222 complaints in the transmission category.

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