The other day, my ac compressor belt snapped on my 2002 Tahoe 5.3L. So I ran to Kragen and bought a new goodyear gatorback ac belt, and a serpentine as well, (I figured i might as well replace it too while i'm down there as it has 94000 miles.) So I switched them out no problem, and the serpentine runs beautifully, but when i turn on the ac, and it engages, i hear a loud-ish fast clicking noise that is heard when I accelerate. It goes away when i'm at speed. Does this sound like a problem with the ac tensioner pulley, or maybe something else?