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Service bulletins for the 1998 Mercury Grand Marquis

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.

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

By type

By component

By trouble code

Bulletins, newest first
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
121202002-04-16. Service bulletin. POWER TRAIN. SOME VEHICLES WITH 4R700 TRANSMISSIONS BUILT FROM 4/16/98 THROUGH THE END OF THE 1998 MODEL YEAR MAY EXHIBIT A LEAK FROM THE VENT AREA OF THE TRANSMISSION. *TT
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
0121142002-02-25. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. PARTS AND PROCEDURE TO REDUCE THE POTENTIAL OF FUEL TANK PUNCTURES DURING RARE AND EXTREMELY HIGH-SPEED REAR IMPACTS. *TT
0121132002-02-22. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. SOME IGNITION SWITCH LOCK CYLINDER ASSEMBLIES MAY EXHIBIT ROUGNESS AND / OR EXCESS EFFORT IN TURNING, KEY DOES NOT FULLY RETURN FROM START, A MALFUNCTION INDICATOR LAMP MAY ILLUMINATE WITH P0500, P1502 AND U1039 STORED IN POWERTRIAN CONTROL MODULE (PCM). *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
012132002-02-22. Service bulletin. EXTERIOR LIGHTING:TURN SIGNAL. VEHICLES MAY EXHIBIT AN INTERMITTENT RAPID FLASHING OF THE TURN SIGNALS. *TT
011812001-11-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH. BRAKE SHIFT INTERLOCK.*JB
151582001-11-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT A FEAD BELT JUMP-OFF TOSS. *YH
011572001-10-31. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS. *SLC
011562001-10-31. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE. SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS. *SLC
150262001-10-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT A STALL AT IDLE AFTER START-UP CONDITION. *TT
150612001-09-06. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. SOME VEHICLES BUILT 04/15/2000 OR EARLIER EQUIPPED WITH A KEYLESS ENTRY SYSTEM MAY EXHIBIT AN INOPERATIVE DOOR-MOUNTED KEYPAD, INTERIOR AND EXTERIOR LAMPS THAT SELF-ACTIVATE AND A WEAK OR DISCHARGED VEHICLE BATTERY. *TT
141812001-07-24. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING:ENGINE. VEHICLES BUILT UP TO DECEMBER OF 1999 MAY EXHIBIT A CLUNK NOISE FROM THE REAR OF THE VEHICLE WHEN DRIVING OVER SPEED BUMPS. THIS MAY BE CAUSED BY THE FILL-LIMITING VALVE INSIDE THE FUEL TANK. *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
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
148622001-05-23. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. INFORMATION ON REPLACING FUEL TANK STRAP BOLTS. *TT
01622001-05-22. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE. VEHICLES EQUIPPED WITH PASSIVE ANTI-THEFT SYSTEM (PATS) MAY NOT START OR CRANK. *TT
00E112001-05-16. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SERVICE ACTION 00E11, SUPPLEMENT #1 - UPDATE INFORMATION REGARDING ON-BOARD DIAGNOSTIC SYSTEM UPGRADE. *TT
002142001-04-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION REGARDING REVISED ENGINE MOUNTS FOR SEVERE DUTY VEHICLES. *JB
002132001-04-16. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. SUBJECT REGARDING CLIMATE CONTROL - EATC - BLOWER MOTOR CONTROL SERVICE TIPS. *JB
01112001-04-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ON SOME VEHICLES, THE ENGINE MOUNTS MAY NOT EXHIBIT SATISFACTORY DURABILITY UNDER SEVERE OPERATING CONDITIONS THAT MAY BE ENCOUNTERED BY POLICE, TAXI OR LIMO / LIVERY VEHICLES SUCH AS EXTENDED IDLING AT HIGH AMBIENT TEMPERATURES. *TT
00E112001-03-13. Service bulletin. EQUIPMENT. SERVICE ACTION BULLETIN REGARDING ON-BOARD DIAGNOSTIC SYSTEM UPGRADE. *TT

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