I was driving at 30 mph and the Nissan Pathfinder 2007 start making a noise in the motor like when you have the car in 1 but it was on drive, then the service engine soon alarm appear. I parked the car but when turning on again it didn't. the dealer said that the radiator coolant damage transmission and the computer because was damaged. The estimated cost of the repair was $9,400.

- Humacao, PR, USA

I started having a sudden jerking in my 2007 Nissan Pathfinder when driving down the highway. When I took it into a Nissan dealer they diagnosed the problem as a failure with the radiator internally and externally which allowed leaking coolant into my transmission fluid causing both radiator and transmission failure. The dealer now states that I need to replace both items or trade it in..... come on Nissan you have a major problem. We need a recall.......

- Baxter, MN, USA

Radiator defect leaked coolant into the transmission caused transmission to fail; will need a new radiator and transmission because of this known defect in the radiator. Also, engine timing chain defects in 2005-2010 Pathfinders. Repairs are set to be $12,000 - which is more than the value of the vehicle.

- San Diego, CA, USA

I was driving on the freeway when all of a sudden I heard a thud and lost power, had to go over 2 lanes without being hit.... I took it to the shop and the mechanic new excactly what the problems was. Radiotor fluid getting into the transmission causing it to fail... hundreds of Nissan Pathfinder owners are having this problem. Tell Nissan to recall this now before someone gets killed.. shouldnt have to pay $8000 for Nissan crappy work..

- Waipahu, HI, USA

My Pathfinder was should have been slowing from the speed of as I was braking and letting off the gas, but it kept moving forward and shaking. If there was a car in front of me I would have hit them hard. My transmission would not shift down to slow down, due to radiator leaking into transmission. The cost of my repair of both radiator and transmission is over $5000.

- Davenport, FL, USA

While driving down the highway my husband and I experienced loss of power and had to pull onto the side of the road. We were towed from there to the mechanic who explained to us that the internal radiator had leaked fluid into the transmission causing failure to both. Since our warranty was outdated we are now out 6000$ and are struggling to fix this. I am very frustrated and disappointed in the vehicle. We had our children with and I am very glad that we were not at a busy intersection or interstate.

- Marne, IA, USA

Start having problems in mid July of 2010. Transmission was jerking in gear. Radiator broke down, allowing fluid to leak into the transmission. Vehicle is inoperable. Also been having problem with fuel gauge. Unable to get vehicle repaired, due to limited income. Vehicle became inoperable passed extended warranty.

- Riverdale, GA, USA

At first started noticing hesitation in transmission at 40 mph, confirmed by 2 mechanics trans fluid is milky color and changed fluid at a local service station that had to go to Nissan and get their transmission fluid to finish job. Now back to milky transmission fluid, have to take overdrive off because gears will not shift, I also carry gallon of water because at any time radiator fluid levels can be low; have to turn air off at long stop lights so temp gauge doesn't go up.

- Joplin, MO, USA

While driving with the ac on, my vehicle started to blast out hot air through the vents and overheat. My car has never ran hot before, I haven't had any problems since I've had it. I was able to pull over safely and let the car cool down. My husband removed the radiator cap and noticed a milky liquid in the radiator. We had to have the vehicle towed to a mechanic shop and they notified us of the recall on the Nissan (2005-2010 models) radiators. They said that it was a common problem that they have been seeing where the coolant mixes with the transmission fluids and cause a major repair problem. We have been told that the radiator, transmission, transmission kit, throttle, vial body, and torque converter will have to be replaced. I feel petrified to know that Nissan knew about this existing problem but refused to have these issues repaired rather than taking the easy way out and extending the warranty. We bought our truck brand new from the Nissan dealership and we also paid for the 5yr/100,000 mile warranty. I have had my truck for 5 yrs and 2 mths, something should have been done about this. We the consumers have trusted this brand for many years and we depend on our vehicles on a daily bases. My family and I were all in the vehicle when the incident happened we could have been seriously harmed in a high risk situation. We had the 90,000 mileage maintenance completed where they flushed the radiator, changed the transmission, & etc. And everything was fine. My husband have always taken my car in for timely maintenance and no one has ever mentioned the radiator issues.

- Duluth, GA, USA

My Pathfinder recently started grinding into 4th gear around 40 mph and is now lurching forward (as if having a difficult time engaging in 1st gear) after bein stopped. After researching the problem, my issue exactly fits the description of scores of online complaints from Pathfinder owners of 2005-07 models who have come to find out that it is a manufacturers' defect of a coolant leaking into the transmission. When I called the Nissan North America customer service to inquire about these complaints and register my own, I was told that I would have to have a diagnostics test I order to register the complaint further. I was transferred to a local dealer who confirmed the research: If my transmission fluid was milky reddish in color (which it is), then radiator fluid had leaked into to transmission and it was likely ( from this service rep's experience) that it would need to be replaced at a cost of $3500-$8000. When I inquired about the prevalence of this problem at his dealership, he was well aware of the problem and issue but because of the percentage of cars affected that is known is small in comparison to the number sold in those years, a recall was unlikely. He also indicated that the mileage on my vehicle (107000) made it even more unlikely that Nissan would cover the repairs.

- Jackson, WI, USA

The faulty seal that separates the anti-freeze and transmission fluid mixed and resulted in the transmission failing. This catastrophic failure that the manufacturer is admitting to but only giving partial remedy as it may not happen before 80,000 miles. I find myself along with many other customers who are footing the bill for the 8600 dollar repair in tough economic times. When buying a new vehicle it should last long enough to finish paying the car note without any major expenses. This issue needs to be addressed immediately as a recall so the consumer can be reimbursed for terrible engineering that any mechanic will tell you. Even the Nissan dealers know is a problem but will not take ownership. Is there any assistance as a consumer?

- Huntsville , AL, USA

When driving down the road 4th gear did not engage at all. Had to get over to side of road and check engine light turned on. Had to drive it off road at 20/30 miles per hour in busy traffic. Have been informed that Nissan is aware of the problem but is not accepting any responsibility for not informing us of the problem that they knew about months ago.

- Littleton, CO, USA

Car started shifting very rough and stalled in traffic. Very dangerous! found out from Nissan service center there is a defect in the radiator that causes the coolant to mix into the transmission. Both the radiator and transmission need to be replaced. Nissan extended the warranty on both parts to 80,000 miles (apparently Nissan knows there is a problem). Unfortunately, it affected my car at 88,000 miles. Now, Nissan is really giving me the run-around. My car has been in the Nissan service center for 2 days. They informed me today (May 11, 2012) they would make a determination by May 16th if they will "help pay" for the fix. The defective radiator should have been recalled! I should not have to pay for this fix. Someone is going to be killed or seriously injured due to this defect!!!!

- Kensington, MD, USA