Mercury Grand Marquis Mercury Grand Marquis

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Expensive Mercury Grand Marquis repairs by problem area

Engine (42%)

Transmission and Drivetrain (21%)

Brakes and Traction Control (4%)

Suspension and Steering (17%)

Electrical and Air Conditioning (17%)

Paint, Rust, Leaks, Rattles, and Trim (0%)

Other (0%)

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Chart based on 24 repairs.
See TSBs and recalls for the Mercury Grand Marquis.

Mercury Grand Marquis repair cost distribution

$2500+ (15%)

$1000 - $2499 (85%)

$500 - $999 (0%)

$100 - $499 (0%)

< $100 (0%)

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Chart based on 20 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2009 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

37000 mi

US $1238
HVAC blend door actuator stuck, tear apart entire dashboard to replace, also noticed battery was cracked and replaced while there. 
73000 mi

US $540
Could not put gas in, would shut off pump constantly. After cleaning vent on filler tube and it didn't help, decided EVAP part needed replaced. 
103000 mi

US $600
Car died suddenly in traffic. Towed to nearby shop, replaced alternator 

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2005 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

225000 mi

US $1800
Transmission rebuilt 
130200 mi

﷼1000
Had to change the dynamo and battery. 

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2004 Mercury Grand Marquis 4dr Sedan

239-horsepower 4.6L V8 4-speed automatic RWD

92000 mi

US $900
replaced engine control module 
92900 mi

US $800
Air conditioner compressor replaced 
96400 mi

US $2300
transmission failure - had a rebuilt tranny installed 
107000 mi

US $222
ball joint replaced 
109000 mi

US $244
replaced power steering pump 
114000 mi

US $1900
could not re-fuel car easily as all attempts resulted in fuel pump shutting off every 5 seconds. needed new fuel tank and wiring harness. waited for shop to locate parts. 
115000 mi

US $472
AC was cycling on at random and causing hard starting and long cranking and idle and engine surges. Replaced A/C switch. needed new heater core. Heat only gave fumes. 
117000 mi

US $550
Steering became "loose" and vague with some vibration with some clunking noise. Upon inspection, the ball joints needed replacing. trunk leaking with a few inches of water in bottom 
122000 mi

US $2900
shifting became erratic and the engine would rev-up to around 1500- 1800 rpm then it would slam into 1st gear. I think they just replaced some solenoids and some burnt bands, then refilled with fresh fluid. 
125000 mi

US $1244
replaced fuel pump and accelerator return valve 
128000 mi

US $100
Car had loud knock, was a blown rod . we donated the car no longer own 
29545 mi

US $12000
Replaced Blower Motor Speed Controller 
34000 mi

US $250
The AC fan switch quit working so I had no AC till it was repaired 
37000 mi

US $1032
fuel pump replaced 

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2003 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

150000 mi

US $300
Radiator replaced Steering shaft replaced 
157000 mi

US $1000
replaced upper steering column due to rust - these were recalled on the 2004 model year cars at one point but our car was never done and the recall is closed. VERY DANGEROUS and I'm not happy to have to do it. I had replaced the lower shaft previously. replaced all four rotors and pads, calipers on rear were too rusty and so we opted to replace. the fronts were cleaned and lubed. exhaust bracket was rusted- replaced 
91818 mi

US $487
replace alternator replace pcm 
96000 mi

US $1275
replace intake manifold 
98300 mi

US $477
replace lower steering shaft 
113012 mi

US $1069
fuel pump replaced intake manifold replaced 

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2001 Mercury Grand Marquis 4dr Sedan

235-horsepower 4.6L V8 4-speed automatic RWD

79000 mi

US $6000
Cracked intake manifold and previous owner mixing coolants required me to have the engine, radiator, all hoses, intake manifold spark plug boots etc replaced. 
85752 mi

US $313
Replace fuel pump (in gas tank). Purchased Motorcraft pump on line for $300, paid $225 to install. Replaced alternator with Motorcraft alternator, which turned out to be defective and had to be replaced again. 
85917 mi

US $330
Rear suspension air bags started leaking. Bought conversion to coil spring kit on line for about $120+/- and paid shop 180 to install. 
89399 mi

US $1000
Front end started making popping noises and just felt mushy and weak. Bought all new suspension parts and shocks on line for $350 and paid local shop $650 to install. 

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2000 Mercury Grand Marquis 4dr Sedan

200-horsepower 4.6L V8 4-speed automatic RWD

87000 mi

US $107
Belt tensioner pulley failing; was replaced. 
94000 mi

US $200
Brake pedal fade. Master cylinder replaced. 
135300 mi

US $900
Upper and lower ball joints replaced. Oil gauge showing no oil pressure. Oil pressure sensor/switch replaced. 
143000 mi

US $2175
Transmission rebuilt due to loss of second gear. 
143000 mi

US $2200
Transmission was rebuilt and torque converter replaced. 
172000 mi

US $943
A/C compressor and A/C hose leaking. Replaced compressor and hose, then recharge system. 

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1999 Mercury Grand Marquis

Engine not specified

64000 mi

US $1800
Loose steering and clunk 

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1999 Mercury Grand Marquis 4-door

8-cylinder automatic 2WD

113000 mi

US $1500
Intake manifold was replaced at this time. The car still had the original all plastic unit which included a plastic coolant crossover which were prone to rupturing as they aged. The intake was replaced with the updated design with an aluminum crossover and is not prone to failure. 
140000 mi

US $700
Tie rod ends replaced. Components were worn and needed to be replaced so alignment could be set properly. 
145000 mi

US $200
Headlights had badly yellowed with age. Replaced with aftermarket units to restore light clarity. 
151000 mi

US $300
Front suspension was worn. Had upper and lower ball joints replaced on both sides. Pittman arm was also replaced at this time due to play. Replaced shock absorbers as the original units were beginning to leak. Also stabilizer links were replaced at this time. 
160000 mi

US $275
Idler arm replaced. 
170000 mi

US $100
Replaced rear window regulators. 
188000 mi

US $1200
A/C compressor failed. A/C compressor, accumulator, and orifice tube replaced. 
201000 mi

US $150
Replaced hoses. Old hoses did not show signs of wear, but were original and were replaced out of preventive maintenance. Replaced spark plugs at recommended service interval. Replaced serpentine belt, idler pulley, and tensioner pulley. The pulleys seemed to be worn with age and the old belt was showing signs of cracking. 
62500 mi

US $1200
4 tie rod ends and 4 tires 
67000 mi

US $293
loose pulley and worn belt 

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1998 Mercury Grand Marquis 4-door

8-cylinder automatic 2WD

240000 mi

US $1800
Replace engine. Apparently a damaged valve. Replacement cheaper than engine repair. 

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See TrueDelta's information for all Sedans
See TrueDelta's information for all Mercury models.

Mercury Grand Marquis Expensive Problems

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