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Service bulletin 002503

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 id617170
Published by NHTSA2001-03-14
Manufacturer's number002503
Manufacturer's date2000-12-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SOME MEDIUM DUTY VEHICLES EQUIPPED WITH THE 7.3L POWERSTROKE DIESEL ENGINE MAY EXHIBIT A NOISE ABOVE THE NORMAL SOUND OF THE DIESEL COMBUSTION. THIS NOISE MAY SOUND LIKE A ROD KNOCK, BUT IS INTERMITTENT AND 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 FORD
LINCOLN LINCOLN
MERCURY MERCURY

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