I have recently started to notice a terrible grinding sound that I can hear very well from my front passenger wheel. I have noticed the sound can be produced on the following conditions. Car is on, Climate/HVAC is On After sitting with car on, and climate on for about ~10 minutes without moving is when the sound starts. The sound will not happen when: Car is on, climate/HVAC is off Car is off Car is driving and climate/HVAC is on My X has been to the SC about 9 times. I hate bugging them, mostly because they are two hours away and go out of their way to take care of the vehicle, but this very much concerns me. I just got the vehicle back two weeks ago. Any ideas? Anyone had this before? Maybe something a ranger can assist with? https://goo.gl/photos/NvdjKThqDcYcLgAh6 Thank you all for your help.