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Service bulletin 16726

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 id10001958
Published by NHTSA2003-07-29
Manufacturer's number16726
Manufacturer's date2003-03-01
NHTSA componentPOWER TRAIN

NHTSA's summary

FLUID LEAKS FROM THE REAR HALFSHAFT SEAL. *TT *JB

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

Vehicles listed
FORD EXPEDITION2003
LINCOLN NAVIGATOR2003

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
TSB 22-22192022-06-27. Service bulletin. Some 2003-2020 Expedition/Navigator and 2006-2020 F-150 (non-Raptor) vehicles equipped with 4WD may exhibit grinding/clicking/ratcheting noise from the front wheel area. This may be due to partial engagement of the integrated wheel ends (IWE). To correct this condition, follow the Service Procedure to remove and cap the vacuum supply line or to reprogram the transfer case control module (TCCM) and replace any worn vacuum and/or IWE components.
TSB-08-19-32009-05-21. Service bulletin. FORD: SOME VEHICLES MAY EXHIBIT OIL SEPARATION FROM THE INTERNAL LUBE FOUND IN THE UNITIZED CARTRIDGE SEAL. OIL SEPARATION APPEARS TO BE AND IS OFTEN MISDIAGNOSED, AS AN AXLE LUBE LEAK. *PE
188152005-12-15. Service bulletin. A TINY CRACK, OR CRACKS, AROUND THE TRANSFER CASE DRAIN PLUG HOLE. *TT
056182005-12-07. Service bulletin. REAR AXLE NOISE REPAIR. *TT
184782005-05-05. Service bulletin. AXLE SEAL LEAKS. *EH
184662005-05-05. Service bulletin. AXLE WHINE HOWL. THIS INCLUDES 1997-05 FORD VEHICLES. *EH
062162005-04-28. Service bulletin. LIMITED SLIP AXLE CHATTER, SHUDDER, BINDING SENSATION, OR VIBRATION DURING LOW SPEED TURNING MANEUVERS. *TT
0421072005-04-28. Service bulletin. GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
042172005-04-15. Service bulletin. GENERAL POWER TRAIN CONTROL MODULE (PCM) PROGRAMMING PROCEDURES. *TT
184392005-04-05. Service bulletin. TINY CRACK OR CRACKS AROUND THE TRANSFER CASE DRAIN PLUG. *EH