Having just rebuilt a 6.0 LS engine for an 03 Escalade myself. The failure was the #4 valve spring broke, bent the valve and piston hit the valve. It DID NOT make a squeeling noise either. It still ran and it was louder than a lifter tick and tons of DTC’s. My wife was smart enough to shut it down and tow it home. The LS engine is one of the easiest engines to rebuild as long as you follow the LS torque to yield procedures as well as other chapters in the book. I mean cake. I sent the bare block out and heads, crank and pistons. Had the heads done and block bored and minimal decking. Got all the parts back (Polished crank, heads, new pistons, rings, bearings etc) put it together in a day or so. Made a custom pre-luber for and it runs great. Not sure why the OP was told needs an engine, what is the exact diagnosis. Total spent on my 6.0 build was 2900.00, this includes all misc parts, plugs, belts, plug wires, and even brake lines too.. Well worth it in my book. I have to check out the vid.
It's hard to imagine the oil is seriously low on a GM vehicle. My '00 Silverado has an oil level monitor that let's me know when it's less than 1/2 quart below the hatched band on the dipstick. I'm pretty sure that's still standard equipment.
BTW, I found that out by adding oil after in increments after an O&F change, not by neglect. The 4.8L engine uses almost no oil between changes, which seems to be the norm.
The law of gravity is fine, but the minimum sentencing guidelines are much too harsh.
Anyone have a chance to listen to the video I posted ?? Curious what thoughts you have.
Definitely hear injectors but does not mean your off the hook so to speak, injectors are timed so that depending on engine config they can mask other more serious sounds like piston slap or piston pin or lifters just depends...
buy yourself a mechanics stethoscope they are well worth the money for all kinds of machinery
the hose trick can work in a pinch and even just using a solid of somekind but NEVER use the latter around rotational parts, some guy put a long screw driver handle through the side of his head that way...
Retired - Journeyman Refrigeration Pipefitter - Master Electrician - MakerGear M2 3D printer- 20 Watt Ray Fine Galvo fiber laser, 6 Watt blue laser engraver project