OK Folks. Here is the real DIY for fixing a blower that sounds like it is a helicopter and that your Rogue is about to lift off of the ground. It is likely caused by debris in the blower/fan. Either a critter like a mouse has taken up residence there, or it is just full of lint from 7 years of use. Whatever the case, if you take it to the dealer they will tell you it is a 4 hour job that requires dismantling the dash and removing the pedals and all kinds of scary stuff.
DO NOT LET THEM JIVE TALK YOU! YOU ARE NOT A SUCKER!
This is a 15 minute job that can be done with 3 simple tools.
1: Philips head screwdriver
2: wire snips or scissors
3: shop vac or hand vac
The blower is located behind the stereo and vents in the dash. You are going to get to it by removing the glove box.
Step 1 - Turn off your car! (A lot of people forget simple steps like this) This is very important since you will be putting your hands inside of a fan. You do not want to lose a finger or part of one.
Step 2 - Remove the glove box passenger side cover panel by opening the front passenger door and prying the cover off of the side of the glove box at the door jam
Step 3 - Remove the glove box. There are 7 Philips head screws that need to come out. Then gently pull it towards the seat. Unclip the wire for the glove box light. (This would be a really convenient time to replace your blown out bulb in the glove box, if you only had the replacement bulb - which I did not).
Step 4 - Locate the fan cover, and open or remove. First pull one of the wire hold down clips out to free the wire and then release the 2 retaining clips on the sides of the cover. There is a philips head screw that points towards the front of the car. If you can, remove it. If not, you may break the pivot of the fan cover (like I did). It is no big deal.
Step 5 - Use your wire snips to clip part of the blower cage away so you can fit your shop vac hose inside. This cage is there to prevent you from putting your hand or any other object into the blower while it is running. (You are way too smart to do that, so you don't need this cage)
PS- Look how disgusting the blower is! Who knows how long that has been there. YUCK!
Step 6 - Use your shop vac to remove the debris.
Step 7 - Reverse to reassemble.
Step 8 - Open beer and drink. Enjoy quiet clean air and marvel at how the dealership was going to charge you $500 to take care of it.
Take it easy!