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Service bulletins for the 2004 Ford F-150

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.

149 on file from NHTSA, as of 2026-10-19.

About P0734 on the 2004 Ford F-150: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: P0734 are shown. Show all

Bulletins, newest first
173052004-01-21. Service bulletin. POWER TRAIN. SOME VEHICLES BUILT BEFORE 9/16/03 EQUIPPED WITH A 4.6L/5.4L ENGINE AND 4R75E TRANSMISSION MAY EXHIBIT THE TRANSMISSION CONCERN INDICATOR LAMP (TCIL) ON WITH DIAGNOSTIC TROUBLE CODE P0733 (3RD GEAR RATIO ERROR) AND/OR P0734 (4TH GEAR RATIO ERROR). *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.