My car will jerk as I'm driving rpms going high while no speed is picking up. With jump out of gear when at stop light. Loud grinding noise from tires could have foot all the way down on gas petal and go no faster.

- Austin, MN, USA

The gear shaft will stop my car from starting when I turn it off. It will also make my car vut off while driving..the button on the gear stick will get stuck and I am able to shift gears...when the car is not started and my foot is not on the breaks. Even when the button is not stuck, it still will get stuck in park and wont let me start my car..a recall should be started..because I have seen others on here with similar complaints..so its a manufacturing accident not the consumer.

- Harvey, IL, USA

The contact owns a 2006 Mercury Mountaineer. While the vehicle was stationary, it would not reverse when prompted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 154,758.

- Ettrick, WI, USA

Have sent a complaint recently no one has contacted me I've seen on line hundreds of complaints due to faulty transmissions on Ford, and Mercury Mountaineer esp 20001- thru 2012 models and had a 2004 last yr. I had to send to junkyard because transmission was bad and would also stop while driving esp. On highways at speeds over 55 mph many close calls and lucky I wasnt injured or killled due to trouble with transmission not shifting and becoming unresponsive to where it had to be towed several times when transmission became unresponsive now my 2006 Mountaineer AWD has similar problems and every one I have tried to purchase as a replacement also has had problems with their transmissions failing so need some advice as to what can be done to correct these issues!.....as in past I stated it fails loses power and transmission fails while driving on highway after slowing down or coming to stop at lights or stop signs it usually is unresponsive and cant get out of low gear and or completely will not go thru gears normally!....have heard only 2011 models have been recalled recently not fair in my opinion that no one has paid attention to the earlier model Ford Explorer and Mountaineer especially in my case O4-08 have all had exact problems similar to my current 06 Mountaineer AWD....as severalmechanics recently refuse to work on it telling me they are not worth their time and no guarantees as they feel that they are all faulty from 02-2012 and all shuld have been recalled due to safety issues!.....in my opinion I believe this shuld be looked into before it becomews the cause of an accident or worse...I am disabled and need a safer vehicle and in hopes Ford will make right by me and possibly look into and or see about a recall on my 06 Mercury Mountaineer!. thanks for any time and help! referring to the unsafe drivetrain yet again I am having with now.

- Frederick, MD, USA

2nd Mountaineer owned transmission will not shift in low gears and unresponsive. Stalled in town and on highway at high speeds almost causing collisions several times after becoming unresponsive while driving.

- Frederick, MD, USA

When at cruising speed trans feels like it is surging as if trying to downshift but never quite does, from a dead stop trans sometimes feels like it cannot pull vehicle's weight.

- New London, WI, USA

I have gone through 3 radiators so far and now I need a 4th. This time, the radiator caused the pumps to start leaking ( which are not serviceable) and eventually ruined my transmission, rendering the truck non-drivable. This problem has cost me thousands of dollar and I want a recall to start on this part with Ford.

- Stevensville, MD, USA

Purchased in June 2009 and have had problem after problem. Mountaineer premier AWD. Transmission issue, feels like you're getting hit from behind when coming to a stop. Radiator leaks. Back lift gate randomly opens, won't latch. When it rains, water comes in through the interior light mount and through dvd player. Spark plugs not easily replaced, broke off and had to be towed to a shop for removal. Gas unable to be pumped properly I can put in.25 at a time if I'm lucky. It takes 20 minutes to pump half a tank of gas. I love the features this vehicle has but this has been such a hassle.

- Pocomoke, MD, USA

Truck cooling system died which caused the truck to catch fire while driving down the highway, smoke poring out, state troopers had to assist us. My daughter was scared to death and now refuses to get back in the truck even though we got a new engine. To make matters worse we spent 3000 on and engine...500 on cooling system and had the transmission reprogrammed. The truck is still have major problems and now for says it needs the transmission rebuilt or replaced. All of this is out of pocket. We cant even trade it in bc they will only give us 1/2 of what we paid for it 2 yrs ago. Nightmare and makes me sick that Ford doesn't care.

- Chadds Ford, PA, USA

In July 2009 at 40000 miles the radiator had a hairline fracture and the radiator had to be replaced, paid out of pocket by owner. In March 2010, at 60000 miles, another radiator is being put in this vehicle, again out of pocket expense for owner. There should not be a need for a vehicle to have had 3 radiators at 60000 miles. The dealership states this is a known issue with this model and that these are poorly placed and manufactured radiators. Ford/Mercury should recall these vehicles and reimburse out of pocket expenses for anyone that has proof of radiators being replaced.

- Franklin, TN, USA

My 2006 Mercury Mountaineer has intermittently jolted or lurched forward when stopping for lights and stop signs after speeds over 30 mph. Hasn't gotten away from me but feels as if I am going to hit something or someone ahead of me. Extremely scary when people are in cross walk. I took my car to the Ford dealer shortly after buying it used. The dealer checked it out and denied it was happening. That was years ago and tonight I saw numerous complaints on another website about this problem. Was looking because now I am getting a grinding noise from my wheels which persists after a brake job that didn't fix it as I thought. Both problems are separate but I see a pattern of them on this vehicle now.

- New Buffalo, MI, USA

I purchased the 2006 Mercury Mountaineer in July 2011. When I went to take the kids on vacation the car hesitated and stopped on the highway then felt like we were rear ended, very dangerous with the hesitation on acceleration almost crashed. Called the place I purchased they have now replaced the torque converter and reset the tcm the vehicle is even worse and they also have had it for 34 days on and off. Called Ford they said they have no program to fix and will not replace the transmission which needs to be replaced. The dealer reports without a bad code even though they know the vehicle is hazardous they cannot find the problem to fix, I said please just replace the transmission and unfortunately to no avail I have purchased a $18,000 hazard that I only was able to drive for 30 days, traded my other vehicle and gave them $1600 cash for downpayment I just want my vehicle fixed....

- Niagara Falls, NY, USA

The contact owns a 2006 Mercury Mountaineer. The contact stated that while driving approximately 50 mph, the radiator started to overheat. The driver was able to continue driving and added water to the radiator. The vehicle was not inspected by a dealer nor repaired. The manufacturer was contacted and they advised him that the failure was caused by normal wear and tear. In addition, he noticed that when shifting from park to reverse, the vehicle would hesitate and jerk violently into the correct gear. The failure mileage was approximately 53,000. The VIN was unavailable.

- Coovis, CA, USA

Two complaints. 1) transmission downshifts hard when slowing, such as for a stop sign. Mercury says it is a software problem. They are aware of the problem but won't fix it under the extended warranty. My vehicle has 37,700 miles. 2) extreme wire wear. It came with michlin tires and I have gotten far less than 20,000 miles out of them. I am now replacing with Bridgestone. I don't know if it is the tire or something defective with the vehicle. The dealership lied to me when I took it in for them to check. The michlins are wearing in the center of the tread and the dealership told me that it was because I had 45 pounds in the tires. I am very concerned about all aspects of upkeep of my vehicle. It calls for 32 psi front and rear. The tires are always within a couple of pounds of that figure. Granted the wear does look like overinflation. Something is wrong with the tire or the vehicle. I have made sure the alignment is right on and it does alighn properly so I tend to believe it is the michlin cross terrian 235X65X18 tires. Other than the trans which the dealership advises will be fixed with a software upgrade and the tire problem, everything else is very satisfactory with the vehicle.

- Creede, CO, USA