Donnie:

Thank you for taking extra time to brainstorm. I most appreciate your suggestion/hypothesis. Are you saying that
I should try the same test with the A/C off? If so, will that cause the fans to remain on, thereby cooling the engine and reducing load? It's certainly worth a try: I will let you know the results.

I forgot to mention, in my last reply to Mark Herzig, that
the stalling condition is reproducible in either right *OR* left U-turns/severe turns. Apparently, the problem is NOT directional in nature, which leads me to conclude that it must not be wiring-harness related (???) I may be wrong...

I am compiling a list of everyone's suggestions, which I
will present to my service technician, by Friday.

Kind regards,