Hi, I got a weird one for y'all. 2005 3.7 rebuilt engine about 2 years ago. Drove fine the day before but went out to start it the other day and here is what I heard. It seems like it's skipping a cylinder, but after a few seconds it starts making a knocking noise that I can't figure out where it's coming from. I checked compression and got an even 165 on all cylinders so I don't think it dropped a valve. I replaced all plugs and coils but still get the noise. I'm asking for any recommendations before I start pulling the valve or timing covers. Here's a youtube video for any advice anyone can offer. Thanks in advance.