Mercury Grand Marquis Mercury Grand Marquis

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Mercury Grand Marquis repairs by problem area

Engine (30%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (7%)

Suspension and Steering (20%)

Electrical and Air Conditioning (27%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (3%)

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Chart based on 197 repairs.
See TSBs and recalls for the Mercury Grand Marquis.

Mercury Grand Marquis brake repair cost distribution

$2500+ (0%)

$1000 - $2499 (8%)

$500 - $999 (8%)

$100 - $499 (46%)

< $100 (38%)

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Chart based on 13 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2005 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

199800 mi

US $550
balky shift interlock  

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2004 Mercury Grand Marquis 4dr Sedan

239-horsepower 4.6L V8 4-speed automatic RWD

49700 mi

US $430
Brakes were sliding in reverse when I ent easy on them like backing out of a parking spot and car wouldn't stop. Had to throw trans into drive to stop it an move forward. Took it to my mechanic and he told me it was the ABS Control Module and it was a very very expensive part that I should think twice about replacing and maybe get rid of the car. I asked about getting a used one and he said there is no guarantee the used one would work but if I wanted to take a shot he would put it in. I did. And for $61 which included shipping a bought a used one and received it in 2 days. Mechanic put it in and at the same time thought it a good idea to change the master cylinder and flush the system. The results are that the car brakes better than it was new! Labor to take out the old one and put in the used one (lucky there was no programming problem) was a couple of 100 and so was the master so with all it came to $430. I was lucky to find a reputable used parts dealer that I would be more than happy to share with the community. A & B Auto LLC someplace in Louisiana, found them on eBay as abmotorsla. 

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2004 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

175000 mi Bad wheel speed sensor left front. Did not replace Code for bad wheel speed sensor left front. Did not replace. 

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2003 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

104500 mi

US $475
Replace pads and rotors ... 
157000 mi

US $1000
replaced all four rotors and pads, calipers on rear were too rusty and so we opted to replace. the fronts were cleaned and lubed. 

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2002 Mercury Grand Marquis 4dr Sedan

220-horsepower 4.6L V8 4-speed automatic RWD

69000 mi

US $50
ABS sensor (rear drivers side) replaced 
73000 mi

US $450
ABS/trac control pump replaced. 

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2001 Mercury Grand Marquis 4dr Sedan

235-horsepower 4.6L V8 4-speed automatic RWD

88000 mi

US $75
ABS module went out. Removed it and sent it to Module Repair Pro in CA for rebuild. Reinstalled four days later and all is well. 

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2000 Mercury Grand Marquis 4dr Sedan

215-horsepower 4.6L V8 4-speed automatic RWD

172000 mi

US $350
Spongy brake pedal, master cylinder failing. 
181000 mi Bled the system, correcting a soft pedal that wasn't addressed in previous repair trips. 

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2000 Mercury Grand Marquis 4dr Sedan

200-horsepower 4.6L V8 4-speed automatic RWD

94000 mi

US $200
Brake pedal fade. Master cylinder replaced. 

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1998 Mercury Grand Marquis 4-door

8-cylinder automatic 2WD

53000 mi

US $300
Squeeling brakes indicative of needing replacement with new pads and rotors. 

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

Mercury Grand Marquis Brake Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercury Grand Marquis problems occur, check out our car reliability stats.