Model Years Covered:
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Platform Code:
D platform ( Panther platform variant)
Segment:
Full-size sedan, luxury sedan (entry-level)
Target Audience:
Owners seeking to perform their own maintenance and repairs, independent repair shops
Competitors:
Chevrolet Caprice/Impala, Buick Roadmaster, Chrysler New Yorker/LHS, Dodge Diplomat, Oldsmobile 88/98, Cadillac DeVille (depending on specific year and feature set)
Value Proposition:
Provides dealership-level technical information for DIY mechanics and professional technicians, saving time and money on repairs.
Information Source:
Based on original factory service documentation used by authorized technicians.
Usability:
Clear, concise language with illustrations designed for ease of understanding by individuals with basic mechanical knowledge.
General Coverage:
Comprehensive bumper-to-bumper repair and maintenance
Specific Systems:
Engine, transmission, drivetrain, suspension, steering, brakes, electrical, HVAC, body, interior, diagnostics, emissions
Estimated Page Count:
Extensive (typical factory service manuals for this era range from 1500 to 3000+ pages)
Type:
Factory Service Manual / Shop Repair Manual
Engine Mechanical:
Engine assembly, disassembly, rebuilding, cylinder head, block, pistons, crankshaft, camshafts, timing system, lubrication system, cooling system, fuel delivery system (mechanical aspects)
Engine Management:
Ignition system, fuel injection system, emission controls, sensors, actuators, ECU diagnosis and troubleshooting, wiring diagrams
Transmission Drivetrain:
Automatic transmission (4R70W/4R75W), torque converter, driveshaft, rear axle assembly, differential, CV joints (if applicable), U-joints
Suspension Steering:
Front and rear suspension components, shock absorbers, struts, springs, control arms, ball joints, bushings, steering gear, power steering system, wheel alignment specifications
Brakes:
Front and rear brake systems (disc brakes, drum brakes), ABS system, hydraulic components, parking brake, brake fluid specifications
Electrical Electronic:
Battery, charging system (alternator), starting system, lighting system, instrument cluster, power accessories (windows, locks, mirrors), body control module (BCM), infotainment system wiring, diagnostic connector (OBD-II), fuse box diagrams, relay locations, comprehensive wiring schematics
HVAC:
Air conditioning system, heater core, climate control unit, blower motor, refrigerant handling, troubleshooting
Body Chassis:
Body construction, panel replacement, door mechanisms, interior trim, bumpers, glass replacement, structural repairs
Maintenance:
Routine service, oil changes, fluid checks and changes, filter replacements, tune-ups, brake service, tire rotations
Diagnostics:
Symptom-based troubleshooting, diagnostic trouble codes (DTCs), electrical circuit testing, component testing procedures
Repair Rebuild:
Engine overhaul, transmission overhaul, brake caliper rebuilding, suspension component replacement, electrical component repair
Installation Replacement:
Component replacement (alternator, starter, water pump, fuel pump, etc.), accessory installation
Depth:
Detailed step-by-step instructions, torque specifications, component clearances, diagnostic flowcharts, special tool requirements
Engine Code Base:
Ford Modular V8 (Triton family)
Displacement Liters:
4.6L
Engine Configurations:
SOHC V8
Engine Variants:
Crown Victoria Police Interceptor variants (often higher output), standard Grand Marquis variants.
Horsepower Range:
Approximately 215-240 hp (varies by year and specific engine calibration)
Torque Range:
Approximately 270-300 lb-ft (varies by year and specific engine calibration)
Fuel Delivery:
Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection (SMPI)
Fuel Type:
Unleaded Gasoline
Coolant Type Specification:
Ford Premium Engine Coolant (Green) or equivalent meeting specification WSS-M97B51-A1
Oil Type Specification:
SAE 5W-30 meeting Ford specification WSS-M2C153-H or API Service SG, SH, SJ, SL, or SM
OBD Ii Compliance:
Yes, all model years covered are OBD-II compliant.
NHTSA Frontal Crash Test Driver 5 Star:
Yes (for specific model years, consult NHTSA for exact ratings)
NHTSA Front Passenger 5 Star:
Yes (for specific model years, consult NHTSA for exact ratings)
ABS:
Standard on most models
Traction Control:
Optional on some models, standard on later Police Interceptor variants.
Airbags Front:
Driver and passenger airbags standard
Seatbelts:
3-point seatbelts with pretensioners
Oil Change Interval:
Every 5,000 to 7,500 miles or 6 months, whichever comes first (refer to manual for specific recommendation based on driving conditions).
Tire Rotation Interval:
Every 5,000 to 7,500 miles
Transmission Fluid Change Interval:
Every 30,000 to 50,000 miles (severe use may require more frequent changes)
Coolant Flush Interval:
Every 50,000 to 100,000 miles or 3-5 years, depending on coolant type.
Power Steering Fluid Type:
Mercon V (or equivalent)
Common Wear Items:
Ball joints, tie rod ends, control arm bushings, sway bar links, rear air suspension (if equipped), intake manifold gaskets (early models).
Electrical Concerns:
Gauge cluster failures, body control module (BCM) issues, intermittent electrical problems can occur with age.
Engine Specifics:
Spark plug blow-out (pre-2001 models with certain designs), occasional oil leaks.
Maintenance Schedule Highlight
Comprehensive Schedule:
Manual provides detailed scheduled maintenance based on mileage and time intervals.
Mercury Legacy:
Mercury was Ford's mid-range brand, positioned between Ford and Lincoln. The Grand Marquis was a flagship model for the brand, known for its comfortable ride and traditional rear-wheel-drive V8 power.
Panther Platform:
The Grand Marquis shared the Panther platform with the Ford Crown Victoria and Lincoln Town Car. This platform was in production for a significant period, undergoing continuous updates and refinements.
Key Changes 1998-2011:
Major styling updates, engine improvements (transition to modular V8s), interior refinements, introduction of new safety features, and electronic system upgrades throughout the production run.
Production End Year:
2011 (Mercury brand discontinuation)
Manufacturing Location:
St. Thomas, Ontario, Canada (shared with Ford Crown Victoria and Lincoln Town Car)
