Where can I find a diagram of what's under the hood? for example, after reading numerous posts here, I want to install a transmission cooler in my 2015 Nissan Rogue....because of this "limp mode" thing that I experience when trying to go uphill in Colorado for extended periods of time. After watching numerous youtube vids, I can do this, but I need to know what I'm looking at. Maybe my Rogue already has a cooler? I look in there, but sure would like a diagram that shows me whats what and where its at! Sure would appreciate your help

Nissan Rogue S - AWD, 2015
thx, Linda

If your '15 is a gen2 ('14~'20 model) then it already has a 4-port beehive and you can just add hoses to place the cooler in series with the existing heat exchanger (the beehive is the "warmer" on the front of the tranny that looks like an old fashioned beekeeper's box). If it's a gen1 model ('08~'15, called Rogue Select in '14 and '15) then it will have a 2-port beehive (coolant hoses only, no fluid hoses) and you'll need to replace it with a 4-port in order to add a cooler. Here's a thread with good pics and discussion of both versions:
2014-rogue-transmission-cooler-install- ... 27824.html

PS - Nico has factory manuals (FSM's) for the Rogue from '08 to '16. If your '15 is a gen2 then this is your transmission manual...
https://www.nicoclub.com/service-manual ... 5%2Ftm.pdf
...and if it's a gen1 Rogue Select then it will be identical to an '11 and you'll find your transmission here...
https://www.nicoclub.com/service-manual ... 1%2FTM.pdf

Wow, thank you for that.