The 2002 Mercury Grand Marquis Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.
Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.
Trims covered
- GS Sedan 4-Door
- LS Sedan 4-Door
Engines covered
- 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated
What’s inside
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Why this manual matters
- Faster diagnostics with system-based troubleshooting and wiring diagrams
- Clear procedures and reference sections to reduce guesswork and rework
- Helpful for maintenance planning and verifying parts/specs before repairs
Dorman Products, Inc. (Dorman) is recalling certain model Dorman Steering Shafts, part number 425-359, Solutions Steering Shafts, part number 7-0359, and OE Solutions Steering Shafts, part number 425-
If the shafts separate during vehicle operation, a loss of steering control would result, increasing
Dorman will notify owners, and dealers will replace the steering shaft, free of charge. The recall
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
WDS COP KIT DIAGNOSTIC TIP - COIL ON PLUG (COP) IGNITION SYSTEMS - ENGINE MISFIRE OR ROUGH RUNNING. *TT
NUMEROUS ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR (WSS) DTCS, SUCH AS C1145, C1155, C1165, C1175, C1296, C1297, C1298, C1299 AND C1222. *TT
ALUMINUM CORROSION - SERVICE TIP. *TT
SAFETY BELT RETRACTION SPEED. *TT
LIMITED SLIP AXLE CHATTER, SHUDDER, BINDING SENSATION, OR VIBRATION DURING LOW SPEED TURNING MANEUVERS. *TT
GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
NUMEROUS ANTI-LOCK BRAKE SYSTEM (ABS) WHEEL SPEED SENSOR (WSS) DIAGNOSTIC TROUBLE CODES (DTCS). *TT
Showing the 8 most recent of 65 technical service bulletins on file with NHTSA.
I SWERVED TO AVOID AN ANIMAL IN THE ROAD AND HIT A TELEPHONE POLE HEAD ON AT 35 MPH. MY AIR BAGS NEVER DEPLOYED. THE FRONT END OF THE CAR WAS CRUMPLED WELL INTO THE ENGINE COMPARTMENT. THE POLICE, FIR
TL* THE CONTACT OWNED A 2002 MERCURY GRAND MARQUIS. THE CONTACT STATED HE WAS INVOLVED A ROLLOVER CRASH AND THE DRIVERS AIR BAG DID NOT DEPLOY. THE ROLLOVER WAS CAUSED BY THE VEHICLE BEING DRIVEN OFF
THE CONSUMER STATED THE FRONT END OF THE VEHICLE WAS LOWER THAN NORMAL WHICH CAUSED DAMAGE TO THE FRONT END WHEN PARKING. THE DEALERSHIP PROVIDED A TEMPORARY FIX BY PUTTING SHIMS UNDER THE FRONT END.
THE CONSUMER STATED THE FRONT END OF THE VEHICLE WAS LOWER THAN NORMAL WHICH CAUSED DAMAGE TO THE FRONT END WHEN PARKING. THE DEALERSHIP PROVIDED A TEMPORARY FIX BY PUTTING SHIMS UNDER THE FRONT END.
THE CONSUMER STATED THE FRONT END OF THE VEHICLE WAS LOWER THAN NORMAL WHICH CAUSED DAMAGE TO THE FRONT END WHEN PARKING. THE DEALERSHIP PROVIDED A TEMPORARY FIX BY PUTTING SHIMS UNDER THE FRONT END.
Showing the 5 most serious of 101 complaints filed with NHTSA.
