I picked up a new Traverse in Nov and have 2500m on it. So far pretty happy except for one thing. The engine makes a constant ticking noise. Sounds like a fan rotating and clicking. The noise is in the 50-60 clicks per minute range. It can be heard over the radio and when driving at low to medium speeds. Acceleration or deceleration does not change the speed of the click. Wondering if others have run Into this? Is it normal? The noise is getting pretty frustrating.