Vehicle Shudder problems of the 2007 Nissan Frontier

The contact owns a 2007 Nissan Frontier. The contact stated that while his son was driving 65 mph, the vehicle vibrated abnormally with the check engine warning light illuminated. The driver pulled over and called the contact for assistance. The contact drove the vehicle back to the residence. The vehicle was later taken to petro Nissan (6248 us-98, hattiesburg, ms 39402) where the vehicle was diagnosed with a defective transmission and radiator. The manufacturer was notified of the failure however, offered no additional assistance. The vehicle was not repaired. The failure mileage was 114,000.

Around 3 months ago I started noticing between 1000 and 2000 rpms and usually between 40 and 60 mph my vehicle would shake like I was driving on rumble strips. Turns out I had a cross contamination issue with coolant and atf. Looking in my radiator looked like a strawberry milkshake. Also dropped the transmission pan and found a brown shiney mixture of atf and coolant. I immediately went out and bought a new radiator and fluids for my truck. Total cost around $400 so far. After the fluid flushes and new radiator truck ran good for about 1700 miles. About a week ago 01/20/2016 a slight rumbling started again. 2 days ago the issue turned very severe. Rpms were staying very high around 3000 then would get a very violent clunk as the transmission shifted gears. This happened multiple times. I drove the truck yesterday and was sitting in traffic and went to start went light turned green. Rpms went to almost 3 with no movement from the truck then all of a sudden truck gave the violent clunk again and slammed into gear and started moving. I did not drive the vehicle today in fear of a catistrrophic breakdown or worse. Like a transmission lock up at 60 mph causing an accident. I have been shopping transmission shops and it looks like definitely need transmission rebuild or replacement at an estimated fee of $3000 to $6000. This is for an issue that Nissan has been aware of and failed to communicate or take responsibility for with their customers. Issue seem to be when driving straight city or highway at the above speeds and rpms range.

Tl-the contact owns a 2007 Nissan pickup. The contact stated that while driving at 40 mph, the vehicle would shake violently. The contact coasted to the side of the road and was able to restart the vehicle after 30 minutes. The contact also stated that the radiator have a crack. The failure recurred numerous times. The contact was advised by the dealer that the vehicle would need a new transmission and radiator. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 82,000. Aw.