Automatic Transmission Torque Converter problems of the 2007 Nissan Pathfinder

The contact owns a 2007 Nissan Pathfinder. The contact stated was driving 40 mph when the vehicle began to hesitate and shake abnormally. The vehicle then independently shifted out of gear and stalled. The vehicle was taken to the dealer where a diagnostic was performed, which identified the failure as the radiator coolant penetrating the transmission. As a result, the transmission would downshift with abnormal force. The dealer advised the contact that the radiator, torque converter and the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure and current mileage was 107,000.

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.

A vibration occurs at about 1500 rpm. At the time my car had about 24000 miles on it. I took the car to a transmission shop and they told me my torque converter was going out. I took the car to a Nissan dealer and they told me that there was something wrong but that they could not figure out what it was and therefore it was not covered under the power train warranty. It is now 54000 miles and the car would not go into reverse very easily. I again took it to a transmission shop and they told me the transmission oil was as black as motor oil. They said the transmission needed to be replaced. I then took it to the dealer and, same story, they said it needed to be replaced but it is out of warranty by three months. They again said there was something wrong with the transmission but they could not determine what it was. Even though I made the complaint almost two years ago, they told me it was not covered by the powertrain warranty as the vehicle is now out of warranty. There is quite a litany of complaints on the internet about transmission failures from Nissan products. I am obviously quite upset and dissatisfied. I will never buy another Nissan product.