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Service bulletins for the 1998 Lincoln Navigator

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
127202000-11-09. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. SOME VEHICLES MAY DEVELOP A COOLANT LEAK AT THE WORM GEAR CLAMP LOCATED AT THE JOINT BETWEEN THE METAL INTAKE COOLANT TUBE AND THE FLEXIBLE RUBBER COOLANT HOSE. *TT
98-47382000-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. COLD ENGINE KNOCK 5.4L ACTION. *AK
127672000-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. EXHIBITING A VIBRATION THAT MAY BE INTERPRETED AS AN NVH CONDITION. *TT
62322000-11-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. SOME VEHICLES MAY DEVELOP A COOLANT LEAK AT THE WORM GEAR CLAMP LOCATED AT THE JOINT BETWEEN THE METAL INTAKE COOLANT TUBE AND THE COIL RESULTING IN ENGINE MISFIRE WITH DIAGNOSTIC TROUBLE CODE P0304 AND / OR ROUGH IDLE. *TT
001232000-09-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXPERIENCE SPARK KNOCK DURING LIGHT-TO-MODERATE ACCELERATIONS. *TT
115302000-08-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. WHEN DIAGNOSING CRANK / NO START ON CERTAIN VEHICLES EQUIPPED WITH PASSIVE ANTI-THEFT (PATS) CHECK THE CUSTOMERS KEY RING FOR ANY MAGNETIC OBJECTS LIKE THE MOBILE SPEEDPASS KEY WHICH MAY AFFECT THE SIGNAL TRANSMISSION BETWEEN THE PATS KEY AND THE VEHICLE TRANSCEIVER. *TT
121702000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION CONCERNING THE OCTANE SHORTING BAR LOCATED ON THE PASSENGER SIDE OF ENGINE COMPARTMENT NEAR THE BULKHEAD IS NOT INTENDED TO BE FUNCTIONAL IN REDUCING DETONATION/SPARK KNOCK. *MJS
9850622000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING IDLE VIBRATION (REPEAT MESSAGE). *TT
9850592000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. EXPERIENCING COLD ENGINE KNOCK (REPEAT / REVISED MESSAGE). *TT
121392000-06-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH 4.6L OR 6.8L ENGINES MAY EXHIBIT A COLD START ENGINE NOISE UNTIL WARMED UP. *MJS
63502000-05-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES EQUIPPED WITH ENGINES PRODUCED BY WINDSOR ENGINE PLANT MAY EXHIBIT AN ENGINE KNOCK AT INITIAL COLD STARTUP. *TT
133222000-04-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT AN ENGINE KNOCK AT INITIAL COLD STARTUP. *TT
9815122000-04-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. A DIRECT REPLACEMENT PART FOR THE EVAPORATIVE EMISSION CANISTER AND BRACKET ASSEMBLY. AK
71552000-03-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. VEHICLES EQUIPPED WITH WINDSOR ENGINES ONLY MAY EXHIBIT AN ENGINE KNOCK AT INITIAL COLD STARTUP. *TT
132852000-03-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. EXPERIENCING ENGINE KNOCK AT INITIAL COLD STARTUP. *TT
98112641999-09-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CONCERNS WITH TICKING NOISE ON INITIAL COLD START-UP IN PARK AND NEUTRAL POSITION. *TT
9833161999-09-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMER MAY COMPLAIN OF A TICKING NOISE ON INITIAL COLD START-UP IN PARK POSITION AND NEUTRAL POSITION. *TT
9830841999-09-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON ADDING OR INSTALLING A PULLEY. *TT
98B331999-09-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OWNER NOTIFICATION FOR REPLACEMENT OF ENGINE CYLINDER HEADS. *TT
9960341999-09-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. EXPERIENCING A ENGINE KNOCK AT COLD START-UP. *TT
998161999-08-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR. *TT
9760071999-07-26. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ENGINE AND ENGINE COOLING:ENGINE. BRIEF INFORMATION REGARDING CYLINDER HEAD TEMPERATURE (CHT) AND FAIL SAFE COOLING. *TT
9823251999-03-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. THE MALFUCNTION INDICATOR LAMP ( MIL ) MAY ILLUMINATE AND DIAGNOSTIC TROUBLE CODE (DTC) P0455 MAY BE STORED IN MEMORY. *YC
9820101999-03-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXPERIENCING A " BUZZING " OR " RATTLING " NOISE FROM THE EXHAUST SYSTEM. *YC
9803171999-02-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SYMPTOMS REGARDING P0300-P0308 MISFIRE DTCS WITH 4.6L ENGINES. *YC

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