These is the same noise my 2013 Fusion Hybrid is making. It doesn't vary when to shift but it whirs with engine speed. Started as a low volume noise and has gotten a lot louder. I learned from a car shop this one doesn't have a serpentine belt or idler pulley. The dealership write up technician guessed it might be the pulley. Nope.
Have you found what the problem was? I get a large discount from this one shop cause may wife works in the office. So trying to avoid dealership - $117 to diagnose at dealership. I do have a add on warranty but with a hundred deductible - any clues would be great.
I have a dealership appointment tomorrow. I have the extended warranty PremiumCare so i would hope anything transmission/powertrain/engine related would be covered and i only have a $50 deductible. I'm at about 81k miles. I made the appointment with the shop foreman to do a road test with me in the car so i should know in the morning what the verdict is.
Does it go away when in EV?
The sound does go away in EV mode, but it makes a relatively arresting sound when the ICE goes off. Once in EV mode, the rubbing noise and high pitched whine i experience (that ive described as knives sharpening) continue and get much worse when braking slowly down hills or when coming to a slow stop, which in my opinion is one of the hallmarks of having a hybrid because we are encouraged to improve our brake score. Essentially the whine noise it makes has resulted in me changing my driving behavior to avoid the noise as some have indicated to me that it sounds like a police siren. I once slowed down to pick a friend up on the side of the road in front of their house and they asked me if i saw any police. i had to explain it was my car.
Edited by markd85, 22 June 2017 - 01:13 PM.