Spray WD-40 at all exposed bearing areas. You've obviously had the front engine cover off, with it off and the engine running, shoot a squirt at the base of the rotating shafts. I think you'll find the squeak.
If you do find it, you might want to go back with white lithium grease for a more permanent solution.
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Sadly on the outside looking in.
"Drive it like the Doctor ordered"
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