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Mercury Grand Marquis Problems and Repair Histories

Don't infer Mercury Grand Marquis problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Mercury Grand Marquis repairs by problem area

36% of the Mercury Grand Marquis repairs were to the engine, 6% to the transmission, 6% to the brakes, 28% to the suspension, 19% to the electrical or air-conditioning systems, and 6% to other areas of the vehicle.

Chart based on 53 repairs.

Mercury Grand Marquis repair cost distribution

Of the Mercury Grand Marquis repairs that were not covered by warranty and were not do-it-yourself repairs, 16% cost less than $100, 49% between $100 and $499, 24% between $500 and $999, 9% between $1000 and $2499, and 2% more than $2500.

Chart based on 45 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Mercury Grand Marquis problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2004 Mercury Grand Marquis 4dr Sedan

239-horsepower 4.6L V8 4-speed automatic RWD

Mercury Grand Marquis in Illinois, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jun 2010 50000    
58000 40 Headlights failed while driving. Problem traced to defective Lighting Control Module. I replaced the defective relays inside the module and returned it to service. 
60700 150 Air Conditioner required a recharge. 
68000  

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2004 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

Mercury Grand Marquis in Florida, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jun 2011 23000    
25000 76 Vapor Canister Valve 
 

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2003 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

Mercury Grand Marquis in Michigan, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2011 72000    
72000 500 Very noisy and often running rear suspension air pump. It was broken & needed to be replaced. 
Mercury Grand Marquis in Iowa, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2010 62000    
66000 700 engine cooling fan stopped working, PCM had to be replaced 500.00 parts + Labor = 700.00 
71000  

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2000 Mercury Grand Marquis 4dr Sedan

215-horsepower 4.6L V8 4-speed automatic RWD

Mercury Grand Marquis in Missouri, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jul 2011 62000    
63000 550 Tailshaft trans bushing replaced. 
 
Mercury Grand Marquis in Missouri, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
May 2011 159000    
159000 300 Intake manifold developed hairline crack. Replaced intake manifold. 
Mercury Grand Marquis in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2010 176000    
177000 230 Install two (2) new mufflers 
178000 50 Replace damaged windshield 
182000  

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2000 Mercury Grand Marquis 4dr Sedan

200-horsepower 4.6L V8 4-speed automatic RWD

Mercury Grand Marquis in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2010 85000    
87000 107 Belt tensioner pulley failing; was replaced. 
94000 200 Brake pedal fade. Master cylinder replaced. 
124000 900 Upper and lower ball joints replaced. Oil gauge showing no oil pressure. Oil pressure sensor/switch replaced. 
127000  
Mercury Grand Marquis in New York, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
80 Replaced 10(yes ten)yr. old battery. Bought in 2002/18k miles. Since,repairs for normal wear items only. Air suspension rear;(expansion joints? what are they?)but mushy handling for fast maneuvers so avoid race car driving techniques. 
83000 56 The heater/air cond. fan motor speed module is intermittent and needs to be replaced. I wired a switch to bypass the module and turn on the fan full speed if the module fails to. Can't be without defroster in the cold and snow. (Later fixed itself.) 
 

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1999 Mercury Grand Marquis

Engine not specified

Mercury Grand Marquis in Missouri, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2011 64000    
64000 0 Had the drivetrain vibration very common to these cars. Numerous attempts to find solution, but no one knows what it is. That's the reason I traded it. Other than that, it was a great car. 

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