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Service bulletins for the 1998 Ford Expedition

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
072122008-02-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 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. ENGINE AND ENGINE COOLING. WDS COP KIT DIAGNOSTIC TIP - COIL ON PLUG (COP) IGNITION SYSTEMS - ENGINE MISFIRE OR ROUGH RUNNING. *TT
05542005-05-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. USE OF STAINLESS STEEL EXHAUST STUDS IN SERVICE FOR 5.4L 2V ENGINE. *TT
054172005-05-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). INTERMITTENT ROUGH IDLE - NON-COMMANDED EGR (EXHAUST GAS RECIRCULATION VALVE) FLOW. *TT
0314042005-01-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 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.
174482004-07-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REMOTE OIL FILTER ADAPTOR REPLACEMENT - NEW SERVICE PART. *TT
173202004-07-23. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. BROKEN EXHAUST MANIFOLD STUDS. *TT
031442003-10-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 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
166832003-07-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. FALSE FAILURE OF THE VAPOR MANAGEMENT VALVE (VMV). *TT *JB
159012002-12-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. 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
012462002-04-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ENGINE OIL SYSTEM PRIMING PROCEDURES, SERVICE TIPS FOR REPORTS OF PREMATURE ENGINE FAILURE. *TT
155172002-04-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING EXAGGERATED ENGINE BRAKING ON DECELERATION. *YD
02142002-04-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME ENGINE ASSEMBLIES WITH ALUMINUM CYLINDER HEADS REPAIRED IN-VEHILE HAVE BEEN FOUND TO LEAK COOLANT AND/OR OIL FROM THE CYLINDER HEAD GASKET AREA. *TT
012052002-02-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT VACUUM OR AIR LEAKS IN THE INTAKE MANIFOLD AND / OR ENGINE SYSTEM CAUSING DIAGNOSTIC TROUBLE CODES P0171 AND OR P0174. *TT
0121102002-02-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH THE ROMEO BUILT 4.6L 2V ENGINE MAY EXHIBIT AN ENGINE OIL LEAK OR OIL WEEPAGE FROM THE CYLINDER HEAD GASKET AT THE RIGHT HAND REAR OR THE LEFT HAND FRONT OF THE ENGINE. *TT
01472001-05-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING ENGINE OIL RECOMMENDATIONS FOR USE IN 2001 VEHICLES - SAE 5W-20 MOTOR OIL. *TT
01422001-05-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT THE ENGINE OIL SENDING UNIT CONTACTING THE OIL DRIP SHIELD ATTACHED TO THE FRONT AXLE. *TT
148642001-05-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SUBJECT REGARDING CERTAIN VEHICLES WITH 4.6L ROMEO ENGINES EXHIBITING AN OIL LEAK FROM THE CYLINDER HEAD GASKET AREA. *TT
148212001-05-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES EQUIPPED WITH 4.6L ROMEO ENGINE MAY EXHIBIT AN OIL LEAK FROM THE CYLINDER HEAD GASKET AREA. *TT
143722001-04-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION ON IDLE VIBRATION OR ENGINE DROAN ON ACCELERATION. *JB
143652001-04-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. THIS BULLETIN ADDRESSES CONCERNS A NOISE AT INTIAL ENGINE STARTUP WHEN COLD FROM THE ACCESSORY DRIVE BELT. *JB
146092001-04-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING HIGH IDLE AND/OR CHECK ENGINE LIGHT CONDITION. *JB
9851852001-01-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. COLD START ENGINE NOISE
52572001-01-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION ON VEHICLES EXHIBITING COLD ENGINE KNOCK. *TT
49812001-01-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH 5.4L ENGINES MAY EXHIBIT A COLD START ENGINE KNOCK CONCERN UNTIL WARMED UP. *TT

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