As soon as I shut off the engine there's a loud clunk noise from under the hood that I can't figure out. Is this something common? It's not the vent noise under the dash it's definitely coming from the engine bay somewhere
Mine does that too. It happens about two seconds after I shut off the engine. I have an enclosed garage, so I can hear it well. It makes a "shuuuunk" sound. I don't know what it is, either. It sounds like it's coming from the engine bay.
I wonder why it's never done it before or maybe I just didn't notice. Sounds like when you send the canister back to the teller at the bank just louder.