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Service bulletin 11781

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 id615281
Published by NHTSA2001-01-10
Manufacturer's number11781
Manufacturer's date1998-08-01
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

INFORMATION ON SETTING THE CHECK ENGINE LIGHT AND SETTING DIAGNOSTIC TROUBLE CODE P0455 (EVAPORATIVE EMISSIONS GROSS LEAK). *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.

Trouble codes named

P0455

Vehicles listed
FORD ECONOLINE1997 to 1998
FORD EXPEDITION1997, 1998
FORD F SERIES1997 to 1998
LINCOLN NAVIGATOR1997
LINCOLN NAVIGATOR1998

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