Last year i purchased a 2013 titan sv 4x4. Im in new york and once the cold weather hit, ill be driving down the road either accelerating or coasting and it feels like there is a hesitation and then a jerking feeling coming from the rear! Tranny fluid is good, not discolored. Had a local nissan dealer look at it since its still under factory warranty and of course they say they cant find anything! No codes, nothing! It only has 39k for mileage, im hoping its nothing major, and hope someone may have a solution here!