My 2016 Cruze Limited LT has been intermittently making this tick noise at idle. It is louder than the normal engine tick noise. I have a YouTube sound clip attached. It does this randomly and doesn't happen every time. I have taken the car to the dealership twice for the issue, but they were unable to replicate. I'm hoping someone may have an idea what the noise is. It sounds like it is coming from behind the engine. Any help would be greatly appreciated. Thanks.