I hope that I'm not too late to join this thread as I appear to have a similar problem with my 2013 Jeep Compass.
It currently has 3000 miles. Approximately 2 months ago, we noticed a 'whistling' sound while accelerating between 15-40mph. It is extremely annoying and we've been back to the Jeep dealer whom we bought it from several times. They assured us that the sound was 'normal' due to the CVT transmission. I've asked why the sound was NOT present when we purchased the vehicle and they assured us that it was due to the car 'settling in' and it having more miles on it. I have test driven several of the same dealer's 2013 Jeep Compasses and none have had the same whistling sound. All of their explanations and reasons for the whistling have been very vague and leads me to not believe what they are telling me.
After my last visit with the dealer, they recommended that I call Chrysler's customer service - which I did. They explained that they had NEVER heard this complaint before and that there was nothing that they could really do. They suggested that I get a 2nd opinion from a different Jeep dealership - which I did.
After visiting a 2nd Jeep dealership, they confirmed that they heard the same noise but that the sound was NOT normal. But because they cannot recreate the sound when the vehicle is sitting idle in the factory, that they could not identify much less repair the sound. Their only suggested was to drive the Jeep more miles and wait to see if the sound 'disappears by itself' or 'gets worse'.
Now, it appears that I'm left with literally no alternatives to have the whistling corrected OR even a correct diagnosis as to what it is because the 2 Jeep dealerships are telling me the exact opposite thing.
I've also been told:
• the transmission is fine
• fluid levels are fine
• no other seals, tubes, or vacuum system(s) have been jeopardized.
I would GREATLY appreciate anyone's feedback and suggestion with this. Thanks for taking the time to read this.
Hey ZHall7218 - I just went through this with my 2012 Jeep Patriot, CVT, 4cyl, 15k miles. It would get a high pitched whinning noise usually when going up a hill with higher RPM's but it was kind of random. I heard this in the very beginning just like you, took it in and they couldn't "replicate" it so they said nothing was wrong. Nothing was wrong for a while UNTIL a bunch of stuff started to go wrong. Just a month ago we took a trip to California, on the way there the car overheated, power shut off and we sat there in Vegas for a good 30 minutes trying to figure it out... it's a 2012 it shouldn't overheat. We literally had to turn the heater on and drive like that for while, piece of junk. Then when the whining started it was lose power, gas mileage went down, on the hwy I think we only got about 18 or so, crappy for a 4cyl. On the way back from CA it overheated again... it was 85 outside... no reason for that... the noise persisted. No check engine light just the overheat light. I took it in right when we got home and pretty much told them I'm not taking the car back until they fix the issue... I thought it was the CVT... they didn't think so, finally they were able to replicate the issue and what do you know, it was the CVT. I also demanded a loaner car which they finally gave me after fighting with them for a week. I just got my car back last Tuesday, took a trip to St George, on the way down it hummed... 21 mpg (better than usual), no issues, no whines, no overheating (got up to 106)... worked like a jem. Then on the way back... the whining came right back... didn't overheat just yet, no loss of power but that will follow if the whining continues, guaranteed.
I already reached out to the dealer about the issue again, actually earlier today. Told them what was going on, asked to get Chrysler involved to figure this out asap.
Moral of the story, if it doesn't sound right, something is wrong. Do not let them tell you everything is fine.. if they can't replicate it, then get in the car with them and drive it hard until you get the sound to come back. Drop it off and demand they fix the issue. Get Chrysler involved as well, not that they are much help but it presses them more to figure out what is wrong. The earlier you jump on the issue the better. If I had known what I did at the 3k mileage mark when my car started to whine I think things would have turned out differently. Also, check the Sale of Goods Act 1979, I think it may be specific to each state, or check your state's lemon law. I would jump on that asap.
FYI, all of this was under warranty, not a dime came out of my pocket for anything.