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June 1, 1999 Service bulletin

Some vehicles equipped with a 7.3L dit engine may exhibit a hoot or howling noise from the turbocharger

Ford technical service bulletin 12855 for 1999 Ford Super Duty F Series.

Bulletin number
12855
Component
Engine and engine cooling: engine: gasoline: turbo/supercharger
Summary
Some vehicles equipped with a 7.3l dit engine may exhibit a hoot or howling noise from the turbocharger. Tt

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