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October 30, 2003 Service bulletin

Some vehicles built after 12/7/1998 equipped with a 7.3L dit engine may exhibit a hoot or howling noise...

Ford technical service bulletin 16859 for 1999-2003 Ford Excursion and 1999-2002 Ford Super Duty F Series.

Bulletin number
16859
Component
Engine and engine cooling: engine: gasoline: turbo/supercharger
Summary
Some vehicles built after 12/7/1998 equipped with a 7.3l dit engine may exhibit a hoot or howling noise from the turbocharger. 2003 super duty f series also included. Tt

Owners of these vehicles have filed 191 complaints in the engine category.

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