Hi. So I'll be posting a video shortly of cold start only rattle. I've had the timing chains, guides, and tensioners done, I just did the VVT solenoid hoping to cure it. It's only at first start up! I just don't get it. It only lasts a couple seconds, no codes, etc. I'm going to be taking it to a very reputable shop, but I'm really almost to the point of finding another engine and having it installed. I've become extremely wary of working on this thing myself or I'd just do it. But, anyone have any other ideas as to a possible top end noise that only exists first start, and doesn't occur when running? It runs great otherwise.