1) I think this is the IACV? It was shaking pretty heavily.
big thing, by the throttle body, bolted no the intake manifold, so it shouldn't be shaking
2) I believe the EGR passages are back here, regardless, it was heavily shaking.
Also on intake manifold, below the fuel rail, might have bolt-on covers
3) The distributor; It was shaking pretty heavily.
Also bolted on the engine, but it has the most movement from it's location to the mounts. But -GENTLY- grab the plug wires. Like you're giving the car a 'handy', sliding back and forth, no shocks, right?
4) Alternator; It had a squeal when I turned on the A/C & it also sounded like it was hesitant to work.
It normally is, usually a slight hesitation the first time they need to build pressure
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It sounds like it only happens when WARM, right?
Well, anyway, it kinda points to EGR staying open when it should close...it can only open when warm...But you should still get it when it's been cold, cause it still shouldn't close...then maybe caused by a 'bind' which can only happen hot...see any lines in the piston bore? It stalls because you don't have enough gasoline for the air.
Second, would be IACV, you cleaned that, right? Every thing good there? This wouldn't open when it should, just stuck closed.
Basically, there are a FEW other options, you really need a OBD reader, most of this stuff also has position sensors, so we have to get into that to see what doesn't line up.