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Mercury Grand Marquis Transmission Problems

148 TrueDelta members own (or used to own) a 2000 or newer Mercury Grand Marquis. 8 of these members (5.4%) have reported transmission repairs for their car. A total of 9 transmission repairs to Mercury Grand Marquiss--an average of 0.1 per vehicle--have been reported.

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.

Percentage of Mercury Grand Marquis repairs by problem area

Chart based on 88 repairs.

Mercury Grand Marquis transmission repair cost distribution

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.
Non-members can see only ten Mercury Grand Marquis repair histories. Log in or join us to see them all.

2009 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

29871 mi   Rear axle seal leaking 

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2004 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

276000 mi   Transmission locked up at high speed and coused the engine to throw a rod through the block. 

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2003 Mercury Grand Marquis 4dr Sedan

224-horsepower 4.6L V8 4-speed automatic RWD

33300 mi US $640 Axle needed to be replaced. The 2003 model year cars made prior to 1/1/2013 had faulty "soft" axles. This is a known issue you can search on Google. Horrible job by Ford to not issue a recall for this. 
90300 US $750 Rear differential housing sprung a leak and took rear end bearings with it. Replace and repacked bearings. 

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2002 Mercury Grand Marquis 4dr Sedan

220-horsepower 4.6L V8 4-speed automatic RWD

101000 mi US $910 Steering idler arm, pitman arm and drag link replacement (significant amount of play and clunk at steering wheel). Rear diff cover leak, reseal diff cover. Transmission slips between 3-4 gear change, dropped pan to replace filter.  

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2000 Mercury Grand Marquis 4dr Sedan

215-horsepower 4.6L V8 4-speed automatic RWD

168000 mi US $450 The shift indicator cable broke. When shifting into Park, it suddenly was reading Rark. And Neverse, Deutral and 2rive. After a week, the cable fully broke so it showed "1" all the time. I know my car is #1 all the time! 
63000 US $550 Tailshaft trans bushing replaced. 

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1999 Mercury Grand Marquis

Engine not specified

64000 mi   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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