If the coolant for tansmission not cooling fluid .will it make trans not shift right

These pathfinders have a major common problem and there is no technical service bulletin. Does your pathfinder have a hard (jerking)1-2 gear shift? does it have a hard shift in any other gears, when downshifting, or comming to a stop? Is your coolant a grey cooler or is your trans fluid bad? check your coolant on top of the radiator (when its cold) or in the coolant reservoir. Check your transmission fluid with the trans dip stick (with engine on). <br /> <br /> What is happening is the trans fluid cooler (on the bottom of the radiator) and radiator are cracking and trans fluid and coolant fluid are mixing together. If you catch this problem very very early it might be possible to fix it with a simple flush coolant and tanns flush and new radiator. But in most cases it requires a new transmission and new radiator and major flushing. It will probably happen to all pathfinders for these years, just depends on when. go to the dealership for check ups and check your coolant fluid, trans fluid, and shifting often to diag it quickly.