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Mercury Mountaineer Transmission Problems

182 TrueDelta members own (or used to own) a 2000 or newer Mercury Mountaineer. 19 of these members (10.4%) have reported transmission repairs for their car. A total of 30 transmission repairs to Mercury Mountaineers--an average of 0.2 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 Mountaineer problems occur, check out our car reliability stats.

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Percentage of Mercury Mountaineer repairs by problem area

Chart based on 182 repairs.

Mercury Mountaineer transmission repair cost distribution

Chart based on 24 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 Mountaineer repair histories. Log in or join us to see them all.

2006 Mercury Mountaineer 4dr SUV

292-horsepower 4.6L V8 6-speed automatic AWD

24000 mi   Had TSB 07-23-2 6R60 performed on my vehicle. While it did eliminate the bump stop when down shifting. the slippage while moving forward was not completely eliminated although it is much improved. 
33000   Replaced transmission shifter assembly. 

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2005 Mercury Mountaineer 4dr SUV

239-horsepower 4.6L V8 5-speed automatic AWD

46000 mi   Transmission fluid leaking from vent tube. Dealer unable to find cause. 
51300   Replace transmission lines (dealer noticed leak while doing brakes), repair transmission cooler lines, transmission service including new fluid and filter, replace fuel filter. 
55000 US $409 Leaking transmission cooler lines. 
56000   Hard shifts, intermittent "check transmission" and "overdrive" lights. Dealer re-sleeved the servo bores. 
58000   Hard shifting, transmission light was on. Dealer replaced transmission main control valve. 
59000   Transmission light came on (recurring problem), accompanied by hard shifting. Dealer was unable to duplicate the problem, advised bringing the vehicle back next time light comes on, without turning vehicle off. 

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2004 Mercury Mountaineer 4dr SUV

239-horsepower 4.6L V8 5-speed automatic AWD

111000 mi US $703 Replaced all bearings, seals, rear end housing, and ajdusted the ring gear and pinion. Grooved axle unnoticed in previous repair causing seal failure. The loss of lubricant caused the failure of wheel bearings. Required replacement of carrier bearings, wheel bearings, ring gear and pinion, and all seals. 
107000 US $350 Planetary gear came loose in the t/case and started to break links on the chain. I have pics send email, if wanted. Replaced with a used unit by the aftermarket warrantee company 
73000   Pinion seal leaking and rear axle seal leaking 

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2002 Mercury Mountaineer

Engine not specified

110000 mi US $2400 Transmission was rebuilt 

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2002 Mercury Mountaineer 4dr SUV

239-horsepower 4.6L V8 5-speed automatic AWD

96000 mi US $1200 Rear differential pinion bearings. 

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2002 Mercury Mountaineer 4dr SUV

210-horsepower 4.0L V6 5-speed automatic AWD

73000 mi US $2700 automatic transmission failed. 
111000 US $270 Left front axle. 
123000   Transmission replaced along w/trans cooler -  
120000 US $1700 Transmission failure. 
150000   Wheels won't turn separately 

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