[The Fast Life]

Hi. I recently noticed after I took my car to the dealer for an oil change an audible Tick coming from the engine... it happens about every 5 seconds when the car is warm and will continue for a few minutes after the car is shut off. This is much louder than the ticking you would hear from the heat shield cooling down after driving. What could it be? Car drives and runs fine Also this is not the sound from the hvac compressor