No it's loud when you're driving next to a wall. Like a ratchet clicking fast at 3k exactly no load on the engine. It evolved after a few months into a rattle at low rpms. Like a tin can. I gotta video.
and rattle only happens when engine is cold, initial start up... on mine anyways.Very interesting PI/DI article; thank you for posting it. That article makes the so-called '2K rattle' harder to explain as a PI/DI transition, since it can happen basically anywhere in the rev range. Now, the way most of us are experiencing it, is super light on the throttle, and starting at around 2.3K rpm. The question is: What percentage of engine load are we using there? It should be minimal. It can only start at 2,250 rpm at 40% engine load, which is where it starts in my car (and most others). But no way we're using that much load barely touching the throttle, so what is it then? At any rate, a test we could make is to give more sudden load to the engine when it starts to rattle, to see if it goes away.
As far as the 'typewriter click', it sounds awful indeed. And extremely hard to tell if it's rod-bearing knock or piston slap... but there are ways to tell. Hope my engine doesn't do that, but at least right now, it doesn't. And that means my engine shouldn't have piston slap, or it'd be there since day 1. Therefore, if that noise starts later on, it has to be rod-bearing IMO. Besides, piston slap is much more prevalent when cold, meaning if it happens when hot, it must be awful when cold. Two of my Corvettes had it (LS1 and LS2 engines), but only for a fraction of a second during a cold weather cold start. The 'CLACK CLACK CLACK' noise is deafening inside the garage. So I personally don't buy that it's hot piston slap, when it doesn't have any cold piston slap; makes no sense to me.