My car just started to have a metallic rolling ball sound for about 5 seconds after the engine is shut off. Could be vacuum related. The rolling sound is best heard from the intake manifold/PCV area (that is where the video was taken at). It is not coming from the alternator or other pulleys as I let the car run for a few seconds without the serpentine belt and then shut off the engine and the rolling sound was still present.
2012 11 01 12 57 42 847 - YouTube
Also have a whistling which is heard near the UIM and throttle body. I had the gasket and UIM replaced under extended warranty in April 2011. Is it suppose to have a small gap between the UIM and throttole body. I can see the blue gasket and not sure if this is normal.
Whistling noise
2012 11 01 13 05 38 921 - YouTube
Whistling noise with additional click at 3 seconds and 9 seconds
2012 11 01 13 13 35 763 - YouTube
