Specs

Research 2003 Mercury Grand Marquis specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

GS 4dr Sedan GS

Brakes

Disc - Rear (Yes or ) Yes
Drum - Rear (Yes or )
Rear Brake Rotor Diam x Thickness (in) 11.1 x 0.55
Disc - Front (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 12.4 x 1.1
Brake Type Power
Brake ABS System 4-Wheel
Rear Drum Diam x Width (in)

Cargo Area Dimensions

Trunk Volume (ft³) 20.6

Cooling System

Total Cooling System Capacity (qts) 13.6

Electrical

Maximum Alternator Capacity (amps) 130
Cold Cranking Amps @ 0° F (Primary) 650

Engine

Engine Order Code N/A
Engine Type Gas V8
Displacement 4.6L/281
Fuel System SEFI
SAE Net Horsepower @ RPM 239 @ 4900
SAE Net Horsepower @ RPM 224 @ 4800
SAE Net Torque @ RPM 287 @ 4100
SAE Net Torque @ RPM 272 @ 4000

Exterior Dimensions

Liftover Height (in) 26.6
Min Ground Clearance (in) 5.5
Width, Max w/o mirrors (in) 78.2
Track Width, Rear (in) 65.6
Length, Overall (in) 212
Wheelbase (in) 114.7
Height, Overall (in) 56.8
Track Width, Front (in) 63.4

Fuel Tank

Fuel Tank Capacity, Approx (gal) 19.0

Interior Dimensions

Front Leg Room (in) 42.5
Second Hip Room (in) 58.7
Second Shoulder Room (in) 60.3
Second Leg Room (in) 39.6
Second Head Room (in) 37.9
Front Hip Room (in) 58.0
Front Shoulder Room (in) 60.8
Front Head Room (in) 39.3
Passenger Capacity 6
Passenger Volume (ft³) 109.3

Mileage

EPA Fuel Economy Est - City (MPG) 17
EPA Fuel Economy Est - Hwy (MPG) 25

Steering

Lock to Lock Turns (Steering) 3.4
Turning Diameter - Wall to Wall (ft) 43.1
Turning Diameter - Curb to Curb (ft) 40.3
Steering Type Variable Assist
Steering Ratio (:1), Overall 16.4

Summary

Body Style 4 Door Sedan
Vehicle Name Mercury Grand Marquis
Vehicle Name Mercury Grand Marquis

Suspension

Stabilizer Bar Diameter - Rear (in)
Suspension Type - Front Independent SLA
Suspension Type - Rear Air suspension
Suspension Type - Rear Watts Linkage
Suspension Type - Front (Cont.) w/Coil Springs
Suspension Type - Rear (Cont.) w/Coil Springs
Shock Absorber Diameter - Front (mm) 30.0
Shock Absorber Diameter - Rear (mm) 30.0
Stabilizer Bar Diameter - Front (in) - TBD -
Stabilizer Bar Diameter - Front (in) 1.09
Stabilizer Bar Diameter - Rear (in) - TBD -

Tires

Spare Tire Order Code
Spare Tire Size P225/60TR16
Rear Tire Size P225/60TR16
Front Tire Size P225/60TR16
Spare Tire Order Code 508
Front Tire Order Code
Rear Tire Order Code
Spare Tire Size T125/80R16
Spare Tire Size P225/60TR16

Trailering

Dead Weight Hitch - Max Trailer Wt. (lbs) 2000
Dead Weight Hitch - Max Tongue Wt. (lbs) 200
Wt Distributing Hitch - Max Trailer Wt. (lbs) - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs) - TBD -

Transmission

Seventh Gear Ratio (:1)
Fourth Gear Ratio (:1) 0.70
Third Gear Ratio (:1) 1.00
Second Gear Ratio (:1) 1.55
First Gear Ratio (:1) 2.84
Trans Description Cont. Again
Trans Description Cont. Automatic w/OD
Trans Type 4
Trans Order Code N/A
Drivetrain Rear Wheel Drive
Final Drive Axle Ratio (:1) 2.73
Final Drive Axle Ratio (:1) 3.27
Clutch Size (in)
Reverse Ratio (:1) 2.32
Sixth Gear Ratio (:1)
Fifth Gear Ratio (:1)

Vehicle

EPA Classification Large

Weight Information

Base Curb Weight (lbs) 3957

Wheels

Rear Wheel Material Steel
Front Wheel Material Steel
Spare Wheel Size (in) 16 x 4.5
Spare Wheel Size (in) 16 x 7.0
Front Wheel Size (in) 16 x 7.0
Rear Wheel Size (in) 16 x 7.0
Spare Wheel Material Steel

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