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December 1, 1998 Service bulletin

Some vehicles with 7.3L / 4R100 transmission may exhibit an increase in engine RPM of 200 - 300 RPM...

Ford technical service bulletin 12277 for 1999 Ford F Super Duty.

Bulletin number
12277
Component
Engine and engine cooling: engine: gasoline
Summary
Some vehicles with 7.3l / 4r100 transmission may exhibit an increase in engine RPM of 200 - 300 RPM between shifts (shift flare). Tt

Owners of these vehicles have filed 13 complaints in the engine category.

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