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Service bulletins for the 1993 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.

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

By type

By component

Bulletins, newest first
9625171997-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TRANSMISSION - AODE - 4R70W - SHUDDER OR VIBRATION UNDER LIGHT TO MODERATE ACCELERATION ABOVE 56 KM/H (35 MPH) WHILE IN 3RD OR 4TH GEAR. *TW
962591997-06-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION - DIAGNOSTIC - TROUBLE CODE (DTC) 332 STORED IN MEMORY - WATER PRESENT IN PRESSURE FEEDBACK EGR (PFE) SENSOR. *TW
962251997-06-17. Service bulletin. FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM. MASS AIR FLOW SENSOR - REPLACEMENT AS AN ASSEMBLY - SERVICE TIP. *TW
962221997-06-17. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS. BRAKES - ELIMINATION OF SANDING ROTORS AND DRUMS - SERVICE TIP. *TW
962211997-06-17. Service bulletin. VISIBILITY:WINDSHIELD. WINDSHIELD AND INTERIOR GLASS - FOG/FILM. *TW
962491997-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TORQUE CONVERTER - LEAK TEST PROCEDURE - SERVICE TIP. *TW
962461997-06-17. Service bulletin. ELECTRICAL SYSTEM:WIRING. WIRING - ELECTRICAL DIODE IDENTIFICATION AND SERVICE REPLACEMENTS. *TW
BC08109610111997-04-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. VEHICLES EQUIPPED W/ AN AODE OR 4R70W TRANS HAS A CONCERN OF SHUDDER FROM THE TRANSMISSION TORQUE CONVERTER CLUTCH IN 3RD OR 4TH GEAR OR DURING 3-4 SHIFT. *TT
BC06789610251997-04-24. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. INFORMATION ON AODE/4R7W TRANSMISSION MAIN CONTROL & CASE REPLACEMENT. *TT
952121996-04-25. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE BECAUSE IT MAY BE INCOMPATIBLE WITH THE RUBBER MATERIAL USED IN THE DISC BRAKE SYSTEM. IF PETROLEUM-BASED GREASE IS USED TO LUBRICATE ANY PART OF THE DISC BRAKE SYSTEM, IT COULD CAUSE RUBBER PARTS TO SWELL IF LUBRICANT CONTACTS THE RUBBER MATERIAL.
ONP95B641996-04-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AFFECTED CARS WERE MANUFACTURED WITH A LUBRICANT THAT CAUSES THE SENSOR TO PRODUCE IMPROPER SIGNALS. IMPROPER SENSOR SIGNALS CAN CAUSE ERRATIC TRANSMISSION SHIFTING AND, IN SOME INSTANCES, INTERMEDIATE ONE-WAY CLUTCH FAILURE. *TT
BC30329504011995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION; EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM:IGNITION:MODULE; STRUCTURE:BODY:DOOR. UNKNOWN
951021995-11-01. Service bulletin. ELECTRICAL SYSTEM:IGNITION. VEHICLES MAY HAVE A DISCONNECT OF THE IGNITION CONTROL MODULE (ICM) CONNECTOR OR MOISTURE BUILDUP WITHIN THE CONNECTOR. *TW
95621995-11-01. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC. ROUGHNESS CONCERN DURING BRAKE APPLICATION. *TW
955151995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THERE MAY BE AN INTERMITTENT LOSS OF TORQUE DURING OR JUST AFTER THE 3-4 UPSHIFT OR IN 4TH GEAR ON SOME VEHICLES. *TW
955131995-11-01. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HEADLAMP CONTAINS MOISTURE OR FOGGING. *TW
BC28509504011995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TORQUE CONVERTER CLUTCH SHUDDER/VIBRATION. *TW
942511995-11-01. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. BRAKES - ANTILOCK- BRAKE PEDAL HAS SLIP/STICK CONDITION AFTER APPLICATION. *TW
953131995-03-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. POSSIBLE WATER INTRUSION IN THE MLP/TR SENSOR CAUSING SHIFT CONCERN. *TW
95361995-03-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INTERMITTENT TRANSMISSION OPERATION. *TW
BC30619503011995-03-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. VEHICLES EXHIBIT A HIGH PITCHED WHISTLE/WHINE NOISE COMING FROM THE ENGINE COMPARTMENT. *TW
95231995-03-17. Service bulletin. FUEL SYSTEM, GASOLINE. ERRATIC DISTANCE-TO-EMPTY AND FUEL GAUGE READINGS. *TW
BC87949501031995-02-08. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. VEHICLES MAY EXHIBIT A MOAN OR HOOT NOISE FROM THE IDLE AIR BYPASS VALVE. *TW
942691995-02-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DELAYED OR NO FORWARD ENGAGEMENT OF TRANSMISSION. *TW
942511995-02-07. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. ANTI-LOCK BRAKES - BRAKE PEDAL HAS SLIP/STICK CONDITION AFTER APPLICATION - NOISE/VIBRATION ON SLOW APPLY AND RELEASE. *TW

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