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Service bulletin 01146

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 id621000
Published by NHTSA2001-09-05
Manufacturer's number01146
Manufacturer's date2001-07-23
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SOME SUPER DUTY F SERIES AND OTHER VEHICLES EQUIPPED WITH A POWERSTROKE DIESEL ENGINE MAY EXHIBIT A NOISE ABOVE THE NORMAL SOUND OF THE DIESEL COMBUSTION. THIS NOISE MAY SOUND LIKE A ROD KNOCK, BUT IT IS INTERMITTENT AND IT INCREASES IN INTENSITY AS THE ENGINE WARMS UP TO OPERATING TEMPERATURE. *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

Engine

Vehicles listed
FORD ECONOLINE1998 to 1999
FORD FORD TRUCK1999

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