Well THAT's not a good sound...
When I turn my car off I hear this.
I've narrowed it down to when the A/C is running. I live in Palm Springs the average temp is 110 this time of year... I CANNOT have my A/C going out.
Dropped it off at the local dealership and they're assessing it now.
Anyone wanna take a guess?
[Update: Heard back from dealership. Needs new compressor.]