According to my mechanic, my fuel pressure regulator is bad. The sound is pretty hard to describe, but if I had to describe it... it isn't a constant sound. It's almost like the sound of the pistons at idle (at about the same rate), but not as sharp. Nevertheless, it's kinda loud and annoying from inside the cabin.

Does this sound like a bad fuel pressure regulator? Before I decide to purchase, I want to make sure it is. I'm not doubting my mechanic, I just want to confirmation from others who have had this issue.

And lastly, WHERE TO BUY? I haven't found any luck anywhere else besides the dealership.

Hopefully the installation isn't too hard since I plan on doing it myself.

P.S. I'll see if I can post a video of the sound within a few days.