2006 PF here with 184k miles.
I have the rattling noise up front at around the 2200 rpm range and many post seem to think it is this part: Valve Assembly / VIAS # 14510-EA21A.
Some post say it is on the 2005 VQ40, but my 06 is doing same thing.
Some post show taking out the valve, ordering a required epoxy glue and then reinstalling. I see where you can order the part online from $50-60.
Anyone done this lately by buying and installing the new valve?
Thanks