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Service bulletin 6451

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id606847
Published by NHTSA1999-09-03
Manufacturer's number6451
Manufacturer's date1999-06-01
NHTSA componentVEHICLE SPEED CONTROL

NHTSA's summary

SOME VEHICLES MAY EXHIBIT A FLOORPAN VIBRATION DURING PART-THROTTLE ACCELERATION. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Throttle and cruise control

Vehicles listed
FORD SUPER DUTY F SERIES1999

Listing a model year does not mean every vehicle of it is concerned: the document says which.