Anyone ahd a problem with their auto, I have an 03 G35 coupe A/T, and under normal driving I be going along and not pushing it and as it runs up through the gears with very little gas it feals that it goes from 3rd to fifth and lags? or from 4th to 5th really early? Or slipping feeling? not to sure exactly whats happening. But, unfortunately this is speratic and I had into the dealer but it is almost impossible to replicate when it goes to the dealer. Any feedback would be great in order to leading the dealer in the right direction to resolve

Thanks