Transmission Failure Problems of Mercury Mountaineer

The contact owns a 2003 Mercury Mountaineer. While driving, the transmission failed to shift. While parked, the emergency brakes failed and caused the vehicle to roll away. The contact was able to gain control of the vehicle. In addition, the brake warning indicator illuminated. The vehicle was towed to the dealer where it was diagnosed that the brake lines and hoses needed to be replaced. The vehicle was repaired, but the issue recurred. The manufacturer was made aware of the failure. The failure mileage was 200,000.

See all problems of the 2003 Mercury Mountaineer 🔎.

Transmission failed while traveling @ 35 mph, would not shift into next gear.

The transmission failed on my 2004 Mountaineer the first time in July 2009 with only approx 58,000 miles. It was under warranty. I was told by the Mercury dealership that my transmission would have to be rebuilt for the transmission was on national back order for a brand new transmission. I made an inquiry as to why a transmission would be on national back order??. Now at approx 84,000 miles the warranty rebuilt transmission has failed again . That is only 24,000 miles put on the rebuilt transmission. My rebuilt transmission has not even hit the 30,000 miles major transmission service time. My warranty expired at 75,0000 miles . My dealership has informed me I have no warranty on a transmission that was rebuilt under warranty past 75,0000 miles.

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Transmission failed at 58,000 and was rebuilt ( not replaced) under warranty. Now less than 24,000 miles and 27 months later at 84,000 miles, transmission has failed again. The rebuilt transmission has not even hit the 30,000 miles major transmission service time.

At 28000 miles the transmission started shifting erratic, the dealer reprogrammed the ecm and covered up the problem until the warrant ended and the battery failed at which time the car reverted back to default and continued to buck and jerk until the car reached highway speed. This continued until the transmission finally failed during operation on the highway on 3/5/20. The abs module just failed during low speed operation for no apparent reason. Also the car indicated that there is an electrical problem even though all electrical components are in good operational condition. This error comes and goes constantly at any given time.

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2004 Mercury Mountaineer. Transmission failing 69,469 miles on vehicle. Tailgate cracked also. Not sure if worth repairing.

Transmission failure on a 2003 Mercury Mountaineer. The transmission failed occurred while traveling on the heavily traveled interstate 295 in NJ. The failure occurred with no warning what so ever. After taking the car to multiple repair shops which included a Ford dealer, I was informed that this is a common and known problem for this type of vehicles and also the Ford explorer. I depend on my car to go to work and I service the car as recommended by Ford. Now I am in the process of repairing the car and meanwhile I had to rent a car for a week. If I was not an alert driver, that failure could have caused an accident and serious injuries and or death to me and other motorists. I think Ford should take responsibility and try to rectify the problem before someone get killed and with the very high sticker price that is associated with these kind of SUV that is supposed to be safe and reliable. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Our 2002 Mercury Mountaineer's transmission blew after 116,000 miles. We have spoken with several transmission shops to get an estimate to fix it and they all told us the Mountaineer is famous for this defect and no one, including NHTSA has done anything about this. I think it is grossly unjust that a car's transmission fails after only 90-100,000 miles and it's so common that it is apparently accepted. This is wrong. I am certain if you investigate the sheer number of Mountaineers with this problem that it will prompt a recall and at least a fix at no cost to the unsuspecting owner who has faithfully maintained their vehicle in every way, only to have this happen.

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Extremely hard shifting into reverse. Slipping in 3rd gear when transmission is running for 15 minutes. Over drive light flashes and transmission fails to work while on highway. I have to shift into neutral turn the car off then back on (while at 65mph) then it works fine the rest of the day.

See all problems of the 2005 Mercury Mountaineer 🔎.

My transmission failed while I was driving on the freeway with my child in the car. This cause my car to "buck" and come to almost complete stop. Thankfully I was in the right lane and able to get off onto the shoulder. My car then would only go into 1st and 2nd gear. It would not shift to 3rd. I took it to a service center (actually 3 of them) who told me I need a new transmission. This is an extremely dangerous situation occurring with these cars. There were not tell tail signs. It was not slipping or rattling previous to this. In searching the internet on google I find there are thousands of people who are have experienced this same problem with Mercury or Ford 2000-2003 vehicles. Why isn't there a recall on this part. This is unacceptable. Eventually someone is going to get hurt. This repair is going to cost me approx. $3000. In addition to this one of my seat belts stopped working. When buckled it comes undone when I am driving. This is a rear passenger seat belt where my child sits. He can not refasten it by himself. I no longer seat him in that particular seat. But how long before the other stop working as well. For some reason your website will not take this number. I just called Ford and they verified the #.

As I was accelerating nothing happened. The transmission failed and didn't go anywhere and then it jerked just as a car was approaching, which made the other car swerve and it almost got into an accident. 2002 Mercury Mountaineers are notorious for bad transmissions and they are a danger. Ford refuses to take any responsibility for their poorly built transmissions.

2002 Mercury Mountaineer transmission failure! common problem and should be a factory recall. Thousands to repair!!!!!.

Transmission failed at around 100,000 miles. Had transmission rebuilt in July 2007. Now transmission is failing again this July 2008. I've had many shifting problems with the transmission and now there are times it won't shift at all.

The vehicle is a 2002 Mercury Mountaineer. The incident/issue involves the transmission. For model year 2002 & 2003, Ford installed the transmission 5r55w in the explorer and Mountaineer vehicles. The transmission typically gives out between 25,000 and 60,000 miles. Mine gave out at a very busy intersection with my two children. Luckily, we did not get hit, but upon researching this issue it is huge. There are two websites concerning this issue of transmission failure with these two models and year. Ford has been notified, as well as you, the NHTSA, and nothing is being done. You have received complaints, and according to your own monthly investigation reports, from 10/2007 to 03/2008, you have not even investigated it. It's going to take numerous people to die before any action is taken on your behalf. This is a huge problem with this transmission and the number of these vehicles on the road. . . . . Do something!!.

On my 2002 Mercury Mountaineer, the transmission failed and has to be rebuilt at 70,000 miles. After reading several websites, it is apparent that this has been a very common and ongoing problem that should qualify it for a recall.

Transmission failure at 42,000 miles w/o warning while driving at highway speeds!.

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2002 Mercury Mountaineer - transmission failed several times on way to work this morning while pulling onto highways. Car taken to transmission shop and we have been told that the transmission is gone and will cost $2,400 to repair. Mechanic also stated that this is a known problem in Mountaineers but has not been recalled as it is not deemed a safety hazard. Apparently the car maker has not been in such a car when this happens on a busy freeway! we also had no indications of a problem prior to this happening.

Copy of email sent to Mercury division of Ford motor company: on 12/9 I had to take my 2002 Mountaineer, with only 46,000 miles on it, to finnin Ford in dubuque. I was told I needed a "new" transmission!! I called Ford to explain the problem and this past Monday (12/12) I got a call back that Ford was only going to pick up $1200. 00 of a $3000. 00 repair bill. Last night I picked up my vehicle from the dealership, but only after paying $1800. 00!! the reply from the Ford customer rep was that because I did not pay for the extended warranty, I was stuck for the major portion of this bill. This is not acceptable!! before I seek legal counsel, I would like to offer Ford/Mercury one last chance to do what should of been done in the first place for a very loyal customer (2 explorers & 2 Mountaineers). Ford/Mercury should have replaced this transmission at no charge. A transmission failure at 46,000 miles on a 2002 SUV should not have happened and because it did, the manufacture should be fixing the problem at no charge to the customer. Oh, and did I mention that according to the dealership, this was the second such problem this week. If Ford motor CO. Has a transmission problem, they should own up to it and fix the problem. I am also a long standing member of consumer report, and I will be advising them of this issue as well as the national safety counsel. Please respond to this email by 12/20/2005. Thank you, dave grall.

2000 Mercury Mountaineer diagnosed with transmission failure - slipping between 2nd & 3rd gears. Vehicle only has 50000 miles.