WenmarOpen by Wenmar Pro

Service bulletin 15901

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 id637787
Published by NHTSA2002-12-06
Manufacturer's number15901
Manufacturer's date2002-05-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

THIS BULLETIN STATES THAT SOME 4.6L FQR ENGINE ASSEMBLIES MAY HAVE A SMALLER OR LARGER KNOCK SENSOR THREADED HOLD THAN THE ONE IN THE ORIGINAL ENGINE ASSEMBLY. *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.

Components

Engine

Vehicles listed
FORD E SERIES1997 to 1998
FORD EXPEDITION1997, 1998
FORD F SERIES1997 to 1998
FORD MUSTANG COBRA1996, 1997, 1998 (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.

Recalls for the same vehicles and component
19990611999-04-15. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
072122008-02-21. Service bulletin. SOME 1997-2008 VEHICLES EQUIPPED WITH A 4.6L 2V, 5.4L 2V, OR 6.8L 2V ENGINE--SPARK PLUG THREAD REPAIR PROCEDURE--NOT COVERED UNDER NEW VEHICLE LIMITED WARRANTY. *NJ THIS INCLUDES F-53 MOTORHOME CHASSIS. UPDATED 2/23/10. *PE
05N042006-01-25. Service bulletin. EXTENDED COVERAGE PROGRAM 05N04 - EXTENDED COVERAGE FOR COMPOSITE INTAKE MANIFOLD. THIS PROGRAM IS BEING PROVIDED AS A SETTLEMENT TO A CLASS ACTION LAWSUIT. THE TERMS OF THE SETTLEMENT EXTEND THE COVERAGE OF THE ALL-COMPOSITE INTAKE MANIFOLD TO 7 YEARS FROM THE ORIGINAL WARRANTY START DATE OF THE VEHICLE, WITH NO LIMIT ON THE NUMBER OF MILES THAT THE VEHICLE HAS BEEN DRIVEN. *TT
0416012006-01-13. Service bulletin. WDS COP KIT DIAGNOSTIC TIP - COIL ON PLUG (COP) IGNITION SYSTEMS - ENGINE MISFIRE OR ROUGH RUNNING. *TT
05542005-05-05. Service bulletin. USE OF STAINLESS STEEL EXHAUST STUDS IN SERVICE FOR 5.4L 2V ENGINE. *TT
054172005-05-05. Service bulletin. INTERMITTENT ROUGH IDLE - NON-COMMANDED EGR (EXHAUST GAS RECIRCULATION VALVE) FLOW. *TT
0314042005-01-06. Service bulletin. ENGINE MISFIRE OR RUNNING - COIL ON PLUG (COP) IGNITION SYSTEMS - WDS COP KIT DIAGNOSTIC TIPS. TO INCLUDE VARIOUS 2005 MODELS. * AR THIS ARTICLE 04161 SUPERSEDES TSB 03-14-04.
022212004-07-27. Service bulletin. ENGINE-GEAR DRIVEN SYNCHRONIZERS-INCORRECT INSTALLATION-CAMSHAFT POSITION SYNCHRONIZER (CMP) INSTALLATION TOOL CORRECT APPLICATION. *MJ
174482004-07-27. Service bulletin. REMOTE OIL FILTER ADAPTOR REPLACEMENT - NEW SERVICE PART. *TT
173202004-07-23. Service bulletin. BROKEN EXHAUST MANIFOLD STUDS. *TT
031442003-10-29. Service bulletin. ENGINE MISFIRE OR ROUGH RUNNING CONDITION WITH COIL ON PLUG (COP) IGNITION SYSTEMS MAY BE MORE ACCURATELY DIAGNOSED USING THE OPTIONAL WORLDWIDE DIAGNOSTIC SYSTEM (WDS) COIL ON PLUG (COP) KIT. 2003 SUPER DUTY F SERIES INCLUDED. *TT