I'm sure they are. I have a good friend that has the same vehicle. I'll see him tomorrow and listen to his to see if it is the same and let you know. He has a lot more miles on it. I think it's near 150,000, but has never had any issues with it.
Also, I checked through technical service bulletins and there is nothing related to this issue. The only engine noise is related to the serpentine belt. That's not what you are hearing. However, and this just popped into my head, you may want to remove the belt and start the engine just long enough to see if the noise is gone. Maybe it is one of the belt driven accessories.
I'll listen tomorrow. If you have other questions you would like me to check for, let me know.
Take care,
Joe
Monday, November 11th, 2019 AT 6:59 PM