WenmarOpen by Wenmar Pro

Service bulletin ASI-44371

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 id10055063
Published by NHTSA2014-04-04
Manufacturer's numberASI-44371
Manufacturer's date2014-01-01
NHTSA componentPOWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

NHTSA's summary

FORD: AFTER A COLD SOAK START UP, SOME TRUCKS MAY EXPERIENCE A SQUEALING NOISE THAT IS NORMAL WETNESS AROUND REAR OUTPUT SEAL, FROM RESIDUAL LUBRICATION USED AT TIME OF ASSEMBLY. MODEL 2011-2014 F250, 350 4X4 CREW CAB. *PE

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

Transmission and driveline, Transfer case

Vehicles listed
FORD F-250 SD2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
FORD F-350 SD2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
ASI-445562014-10-02. Service bulletin. FORD: SQUEALING CAN BE HEARD WHEN DRIVING 35-55 MPH, AFTER COLD SOAK START UP. MODEL 2014-2015 F-250, 350. *PE