I already know what you're thinking, "Oh boy, another window thread" , Ill keep this short & sweet.

My 2004 G35 Coupe is having window issues. Specifically the drivers side motor. The window will roll down perfectly fine.
When you try and roll it up, it will go up maybe half an inch, slow down and get stuck. You then have to hold the button in the "Up" position, and push against the window by hand to roll it up.

I am thinking this is a window motor issue? Im looking for some insight as I do not want to waste money on the wrong parts. I will be replacing them myself. Thank you.

 

Sounds exactly like a window motor issue.