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Tan four-door sedan, front-left view, trunk open, in a gravel boat yard
Home/Registry/Mercury/Grand Marquis/1998–2011supermotors.net/registry/mercury/grand-marquis/1998-2011

1998-2011 Mercury Grand MarquisAero Panther Grand Marquis (1998-2011)

1998–2011 60+ on the wall 85 documents ↓

The Mercury Grand Marquis (1998-2011) is a full-size, rear-wheel-drive sedan built on Ford's body-on-frame Panther platform and sold only as a four-door sedan. Every year used the 4.6 liter SOHC modular V8 paired with a four-speed automatic, and the car shared its platform with the Ford Crown Victoria and Lincoln Town Car. The 1998 revision brought a restyled body while the steering stayed recirculating-ball, the 2003 update introduced a revised hydroformed frame together with rack-and-pinion steering, and production ended at St. Thomas Assembly in Ontario, Canada on January 4, 2011.

Other Mercury Grand Marquis generations

1975-1981 Mercury Grand Marquis 1982-1991 Mercury Grand Marquis 1992-1997 Mercury Grand Marquis

Platform and chassis

The Mercury Grand Marquis (1998-2011) used the Ford Panther platform, a body-on-frame, rear-wheel-drive architecture shared with the Ford Crown Victoria and the Lincoln Town Car. The 1998 model year was primarily a restyle; the steering remained recirculating-ball until the 2003 update. Suspension used a short/long-arm front and a live rear axle located by a Watt's linkage, a feature carried across the whole generation. The 2003 model year introduced a substantially revised chassis with a hydroformed front frame section, rack-and-pinion steering in place of the older recirculating-ball system, larger brakes, and revised front and rear suspension.

Engine

The Grand Marquis used a single engine family across 1998-2011: the 4.6 liter (281 cubic inch) SOHC modular V8. Output depended on exhaust configuration, with the standard single-exhaust rating rising from 200 net horsepower (1998-2000) to 220 (2001-2002) and 224 (2003-2011), and the dual-exhaust versions, offered with the handling and performance package, rated higher at 215, 235, and 239 horsepower over the same spans. The 2003 revision updated the engine's electronics and induction (knock sensor, returnless fuel system) and raised the standard rating. Torque ranged from about 265 to 287 lb-ft depending on year and exhaust.

  • 4.6 L SOHC V8, single exhaust: the base configuration for GS and LS trims, rated 200 to 224 horsepower depending on year.
  • 4.6 L SOHC V8, dual exhaust: higher-output version bundled with the handling and performance package, rated 215 to 239 horsepower depending on year.

Transmission

All Mercury Grand Marquis (1998-2011) models used a four-speed automatic transmission: the 4R70W, later revised to the 4R75W in the mid-2000s. Drive went to the live rear axle.

Body styles

The Grand Marquis was offered only as a four-door, full-size sedan throughout 1998-2011. It seated six with a front bench and column shifter on most trims.

Year-by-year notable changes

  • 1998: restyled body; steering remained recirculating-ball (rack-and-pinion arrived in 2003).
  • 2001: Performance Improved (P.I.) cylinder heads and intake raised output to 220 hp single exhaust and 235 hp dual exhaust.
  • 2003: revised chassis with a hydroformed frame section, rack-and-pinion steering replacing the recirculating-ball setup, larger brakes, and an updated 4.6 L V8 with a higher standard rating (224 hp single, 239 hp dual).
  • Late run (roughly 2008-2011): the model line was narrowed, leaning toward fleet and limited retail sale as full-size sedan demand fell.
  • 2011: final production year; the last car was built at St. Thomas Assembly in Ontario, Canada on January 4, 2011, closing out the Grand Marquis nameplate and the Mercury brand.

Trims and variants

  • GS: the base trim, typically with the single-exhaust 4.6 L V8 and bench seating.
  • LS: the upper trim, adding equipment and available with the handling and performance package.
  • LSE: a sport-oriented version offered roughly 2001-2003 and again in 2005, pairing the handling and performance package (dual exhaust, firmer suspension, floor console and shifter) with distinct trim.
By the SuperMotors Editorial Team · Last updated July 2026 · Spotted an error? Suggest a correction

Asked all the time

What engine does the 1998-2011 Mercury Grand Marquis use?

Every 1998-2011 Grand Marquis uses the 4.6 liter (281 cubic inch) SOHC modular V8 with a four-speed automatic. Single-exhaust cars were rated 200 horsepower (1998-2000), 220 (2001-2002), and 224 (2003-2011), while dual-exhaust versions bundled with the handling package were rated higher at 215, 235, and 239 horsepower over the same spans.

What changed in the 2003 Grand Marquis?

The 2003 model year brought a revised chassis with a hydroformed front frame section, rack-and-pinion steering in place of the older recirculating-ball system, larger brakes, and an updated 4.6 liter V8 whose standard rating rose to 224 horsepower.

How is the Grand Marquis different from the Ford Crown Victoria?

The Mercury Grand Marquis and Ford Crown Victoria are siblings on the same Panther platform with the same 4.6 liter V8 and four-speed automatic. The differences are mainly styling, trim, and equipment. The Crown Victoria was also sold heavily as a police and fleet car, while the Grand Marquis was positioned as the more retail, comfort-oriented sedan alongside the Lincoln Town Car.

Which years should a buyer look for?

Buyers wanting the updated chassis and higher standard engine output should look at 2003 and later cars, which received the hydroformed frame, rack-and-pinion steering, and the revised 4.6 liter V8 rated at 224 horsepower standard. Cars with the handling and performance package add dual exhaust (up to 239 horsepower) and a firmer suspension.

When did Grand Marquis production end?

Production of the Mercury Grand Marquis ended at Ford's St. Thomas Assembly plant in Ontario, Canada on January 4, 2011. The final car was also the last Mercury ever built, closing out the nameplate along with the related Ford Crown Victoria.

What is the LSE?

The LSE was a sport-oriented Grand Marquis offered roughly 2001-2003 and again in 2005. It bundled the handling and performance package, including the dual-exhaust higher-output 4.6 liter V8, a firmer suspension, and a floor console and shifter, with distinct interior and exterior trim.

Technical Reference

Member-uploaded diagrams & documents for this generation. AI-classified; community-verified where badged.

Wiring Diagrams (3)

Service Procedures (4)

Brochures & Literature (49)

Data/Spec Plates (15)

Fuse & Relay Charts (1)

Exploded Parts (3)

Vacuum Routing (1)

Manual Pages (6)

Schematics (3)

The wall · registered 1998–2011 Grand Marquiss

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Tan four-door sedan, front-left view, trunk open, in a gravel boat yard2001 Grand Marquis2001 Grand Marquis · Bad_Karma5,427 photos Gold Mercury Grand Marquis sedan on black steel wheels, three-quarter front view on grass“Merky”2000 Grand Marquis · merknstein2,839 photos Red 1999 Mercury Grand Marquis sedan parked on grass, front 3/4 view1999 Grand Marquis1999 Grand Marquis · chipdog41,452 photos Black Mercury full-size sedan parked in driveway, front three-quarter view.2004 Grand Marquis2004 Grand Marquis · loud2004marquis827 photos 1999 Mercury Grand Marquis in an advertisement with text 'IN CASE OF DISCOMFORT BREAK GLASS'“Black Hawk”1999 Grand Marquis · White_Falcon_LS643 photos Red 2002 Mercury Grand Marquis parked by the water, with a city skyline in the background“EVIL MGM”2002 Grand Marquis · dmcdfreak492 photos 1999 Mercury Grand Marquis parked on paved path next to a lake with trees in background“musclemarquis”1999 Grand Marquis · musclemarquis429 photos Gray 2001 Mercury Grand Marquis sedan parked on a coastal road“Lucifer”2001 Grand Marquis · White_Falcon_LS286 photos Black 2001 Mercury Grand Marquis sedan parked on grass.2001 Grand Marquis2001 Grand Marquis · chipdog4149 photos Black car air intake hose and cylindrical housing on concrete pavement“SVO-CVPI”2004 Grand Marquis · John Gislason118 photos 2007 Mercury Grand Marquis, front quarter view, tan paint with red pinstripe“Marky”2007 Grand Marquis · White_Falcon_LS103 photos Black sedan with hood open, showing engine. Chrome wheels and trim. Visible "SUPERMOTORS" watermark“S55”2005 Grand Marquis · CMWilliamS5596 photos White 2000 Mercury Grand Marquis parked on asphalt with trees in the background2000 Grand Marquis2000 Grand Marquis · djs2000mgm81 photos 2000 Mercury Grand Marquis front fender and door“Sprucey”2000 Grand Marquis · 71Bossv1076 photos White full-size sedan, front three-quarter view, parked by beige building“BLUZMAN”2001 Grand Marquis · Gary Kuhstoss76 photos Green Mercury Grand Marquis sedan parked in driveway, front three-quarter view“Smoky”2003 Grand Marquis · Smoky69 photos White four-door sedan parked on driveway, front three-quarter view, brick house behind“SOLD 4-26-20”1998 Grand Marquis · Steve8359 photos Close-up of engine parts with hoses and wiring2000 Grand Marquis2000 Grand Marquis · Bangster48 photos White four-door sedan with chrome wheels parked on grass“Not_Grandpas_Marquis”1999 Grand Marquis · Not_Grandpas_Marquis44 photos Silver 1998 Mercury Grand Marquis sedan, viewed from a high angle, showing the front passenger side and rear“98”1998 Grand Marquis · slicef9643 photos Engine bay showing V8 with gray intake cover and black air duct“Shabby/Shabster”1998 Grand Marquis · Ovie38 photos Silver four-door sedan parked at 3/4 front angle beside a building with wooded hills behind.“The Barge”2003 Grand Marquis · Nebula737 photos 1998 Mercury Grand Marquis sedan parked in driveway next to a garage and a blue SUV1998 Grand Marquis1998 Grand Marquis · TODDSMERC2334 photos 2003 Mercury Grand Marquis front view at night with headlights on2003 Grand Marquis2003 Grand Marquis · Agorax28 photos Dark blue sedan parked on concrete driveway, front 3/4 view. Chrome grille and bumper are prominent“99GRMQ”1999 Grand Marquis · 99GRMQ26 photos Silver Grand Marquis sedan, 3/4 front view, aftermarket wheels, graffiti wall behind2005 Grand Marquis2005 Grand Marquis · mgm65625 photos Black Mercury Grand Marquis parked at night. Sticker on windshield says 'GRAND MARQUIS'2000 Grand Marquis2000 Grand Marquis · CrownVicBoysPrezKev24 photos Engine bay with alternator and hoses visible“The Merc”2000 Grand Marquis · themerc0023 photos White sedan with black vinyl top, chrome grille, and chrome trim2004 Grand Marquis2004 Grand Marquis · Ornery22 photos Tan 2008 Mercury Grand Marquis parked on asphalt with a yellow license plate2008 Grand Marquis2008 Grand Marquis · jonesmw0121 photos Silver Mercury Grand Marquis sedan parked on gravel with trees in background“Walter”2004 Grand Marquis · jonesmw0120 photos Red 2000 Mercury Grand Marquis parked in a garage“Beasty”2000 Grand Marquis · Michael Carson19 photos Maroon Mercury Grand Marquis sedan, 3/4 front view, with black wheels, parked on asphalt.“changinlatitudes”2004 Grand Marquis · changinlatitudes18 photos Maroon 2000 Mercury Grand Marquis parked on asphalt, front quarter view2000 Grand Marquis2000 Grand Marquis · redpanther18 photos Front corner of a silver 2003 Mercury Grand Marquis with a black push bar and a basketball hoop in the background“interceptor”2003 Grand Marquis · mercury4617 photos Light green Mercury Grand Marquis sedan parked on driveway“GrandPa”2006 Grand Marquis · Tsimpson6915 photos White 2001 Mercury Grand Marquis front with chrome grille and LED strip headlights“The Merc”2001 Grand Marquis · Rollback14 photos Gold 2000 Mercury Grand Marquis front corner with chrome grille and headlights2000 Grand Marquis2000 Grand Marquis · Mountain_Panther14 photos 2003 Mercury Grand Marquis, silver, custom wheels, parked outdoors2003 Grand Marquis2003 Grand Marquis · Browski6613 photos White 2005 Mercury Grand Marquis front view with custom hood scoop and US Marines license plate2005 Grand Marquis2005 Grand Marquis · GRIT12 photos Gold full-size sedan, 3/4 front view, parked on pavement above a desert city under blue sky.“quis”1999 Grand Marquis · VegasMarquisLS12 photos Front view of a black Mercury sedan with chrome grille and Mercury emblem“sonar_91”2002 Grand Marquis · sonar_9112 photos Dark green full-size sedan, front 3/4 view, parked outdoors near trees“DILYSI”2000 Grand Marquis · TheOriginalNotACop12 photos Man kneeling by white sedan's open door with Dynamat applied to inner door skin“White car”2004 Grand Marquis · David Thuma12 photos Red 2000 Mercury Grand Marquis on a car lift with front wheels removed.2000 Grand Marquis2000 Grand Marquis · chipdog411 photos 1998 Mercury Grand Marquis, silver, chrome wheels, parked on driveway1998 Grand Marquis1998 Grand Marquis · RobMGM11 photos Red 2000 Mercury Grand Marquis sedan parked on concrete driveway, side view“Megan”2000 Grand Marquis · stevem42610 photos Light blue Mercury Grand Marquis sedan parked outdoors2005 Grand Marquis2005 Grand Marquis · Mikel04206910 photos White 2000 Mercury Grand Marquis sedan with aftermarket wheels, viewed from a low angle“Presiential”2000 Grand Marquis · Epic142010 photos Silver 2006 Mercury Grand Marquis sedan driving away, rear view2006 Grand Marquis2006 Grand Marquis · michael cowman10 photos Maroon sedan parked on asphalt lot, front quarter view. Lincoln-Mercury dealership sign in background“Miss Ellie”2005 Grand Marquis · nigel879 photos Engine pulley with three nuts, serpentine belt, and partial Motorcraft text“merc”2001 Grand Marquis · battyice9 photos Black full-size sedan parked on driveway at dusk, front 3/4 view with lit headlights“Narc”2004 Grand Marquis · POGallag048 photos Maroon sedan parked next to a pop-up camper at a campsite1999 Grand Marquis1999 Grand Marquis · oriondave8 photos Aluminum car wheel with 20 teardrop-shaped openings around the rim“For Sale”1998 Grand Marquis · slicef968 photos Green control module circuit board with four Potter & Brumfield relays and connector“Granny's”1998 Grand Marquis · grandmarq988 photos Light blue Mercury Grand Marquis sedan rear view with tinted tail lights and Florida plate.“Sabretooth”1999 Grand Marquis · GCUbersoldat8 photos 1998 Mercury Grand Marquis front view parked on a residential street1998 Grand Marquis1998 Grand Marquis · Jeff Smith8 photos 1999 Mercury Grand Marquis with all doors and trunk open, parked on a street“belleza”1999 Grand Marquis · rubymarquis7 photos Silver full-size sedan, front 3/4 view, parked on road by a park“Emma V ”2006 Grand Marquis · azdrifter7 photos
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