Hello everyone. I need help with my 2015 QX70 which has only 53000 miles. There is a strange noise from I believe the top of the engine when the car is idling after a few miles of driving. The noise is more pronounced when the car is on reverse with the AC on. I'm really scared.
I have attached an audio file that captured the noise. I will appreciate any feedback from someone who has experienced similar issues.

Here is the link to the audio file
https://www.dropbox.com/s/au8xl3y1swu84 ... 6.m4a?dl=0
Thank you.
Steve

Oh man, that sounds like a diesel truck idling.

Was the check engine light on at this time?
Have you had any resolution by now?