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Service bulletins for the 1999 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.

261 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
133312000-11-27. 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
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
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
80212000-07-26. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHIBITING A CRACKLING / POPPING NOISE FROM THE EXHAUST. **MR
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
138462000-06-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES BUILT 7/1998 TO 6/1999 EQUIPPED WITH A 4.6 / 5.4L WINDSOR BUILT ENGINES MAY EXHIBIT AN OIL LEAK FROM THE CYLINDER HEAD GASKET AREA. *TT
80932000-06-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES BUILT 7/1998 TO 6/1999 EQUIPPED WITH A 4.6 / 5.4L WINDSOR BUILT ENGINE MAY EXHIBIT AN OIL LEAK FROM THE CYLINDER HEAD GASKET AREA. *TT
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
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
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
9820101999-03-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXPERIENCING A " BUZZING " OR " RATTLING " NOISE FROM THE EXHAUST SYSTEM. *YC

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