2007 V6 idles roughly. Ticking, whirling sounds seem to be coming from around serpentine belt area. Vibrating while driving, no change in rpms. Slight loss of power.

 

Check your all your pulley's on front of the engine(see if any of them are loose) and try and hear where noise is coming from. I lost a water pump and had similar issues...pump making noises and the pulley came loose. I got it before the pulley flew off.