Mercury Mountaineer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercury Mountaineer

Mercury Mountaineer Problems

Problems With 5-speed Automatic Transmission are Common

Various problems with the 5-speed automatic transmission were common. These problems can be more common on the 2002 models with build dates before March, 2002. There are many service bulletins describing the diagnoses and repairs, which include fluid leak repairs, transmission software updates, or internal failures requiring a costly repair.

Crack on Lift Gate

A cosmetic crack may develop on the plastic liftgate trim panel. Our technicians tell us the Ford has released a service procedure to replace the applique without damage the the liftgate glass.

Coolant Leak/Overheating Due to Radiator Leak

A coolant leak may develop from the radiator. Ford has released and updated radiator and powertrain control module (PCM) software update to address this issue. The software update includes revised cooling fan operating parameters. Failure to complete both service procedures may result in repeated radiator failures.

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Mercury Mountaineer Recalls

Ford and Mercury Recall 2010 Models for Improper Seat Back Retention Requirements

Ford has recalled certain 2010 model year Ford Explorer, Explorer Sport Trac, Fusion, and Fusion Hybrid vehicles along with Mercury Mountaineer, Milan, and Milan Hybrid vehicles for an issue with the front seat backs equipped with manual recliner mechanisms. In the event of a crash, the seat back and head restraint may move rearward, increasing the risk of injury. This is due to incorrect specification in the design of the gear plate teeth on the seat back recliner. Dealers will replace the manual recliners free of charge.

Oil Cooler Lines May Not Be Tight

A bolt securing the transmission oil cooler lines to the transmission may not have been sufficiently torqued during assembly. If the oil cooler lines separate from the transmission and transmission fluid contacts the catalytic converter, a fire could start. Dealers will inspect and tighten the transmission cooler line attachment. The recall began August 30, 2007. The Ford recall number is 07S56.

Recall 07V336000
ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.

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Mercury Mountaineer Reviews

my parents bought me a 1997 mercury mountaineer with a 5.0 v8 small block just recently it started making a knocking sound in the engine compartment any ideas on what might have caused it i will be changing the oil this saturday but could there be anything else going on.
I had my truck since March of this year and last month it just stopped running it would start but won't stay started I had it to six different shops look at it nobody knows why it won't stay running and I don't either its a V8 1999 mountaineer at my last end I don't want to give it up but don't know what else to do
Purchased a 2-owner Mt. w/73K original miles. It had a bit of rust due to 2 winters in Michigan followed by 12 years in Va. It has the infamous radio light and rear window wiper failures which I have allowed to continue. It has cost me $100s in front end repairs (rust due to Michigan winters, I guess) and modest other repairs but it is a 15 year old vehicle. It got me thru several snows las...

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