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Service bulletin 982521

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 id603658
Published by NHTSA1999-03-01
Manufacturer's number982521
Manufacturer's date1998-12-21
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

CONCERNS OF BREAKAGE OF THE EXHAUST SYSTEM BETWEEN THE MUFFLER AND TAILPIPE MAY OCCUR ON SOME VEHICLES. *YC

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, Exhaust and emissions

Vehicles listed
FORD EXPEDITION1997, 1998, 1999

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
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
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.
164032004-07-28. Service bulletin. ENGINE-LIGHT TICK OR RATTLE TYPE NOISE FROM ENGINE AFTER COLD START. *MJ
022272004-07-27. Service bulletin. ENGINE-CYLINDER HEAD DECK LEAK-4.6 AND 5.4L ENGINES-NEW SERVICE-ONLY GASKET AND CYLINDER HEAD KITS AVAILABILITY. *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