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Service bulletin 99104

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 id606479
Published by NHTSA1999-08-25
Manufacturer's number99104
Manufacturer's date1999-06-01
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

THE MALFUNCTION INDICATOR LAMP (MIL) MAY ILLUMINATE AND DIAGNOSTIC TROUBLE CODES (DTCS) P0171, P0174, P1131, AND / OR P1151 MAY BE PRESENT WITH OR WITHOUT MISFIRE, ROLLING IDLE, ROUGH IDLE, ETC. *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

P0171, P0174, P1131, P1151

Vehicles listed
FORD EXPLORER1996, 1997, 1998
MERCURY MOUNTAINEER1997, 1998

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