Double check the fan, A/C belt and engine mounts. If the fan wobbles, the A/C belt is stretched or the mounts have collapsed, the fan blades can contact the shroud which will give you the "jingle bell" sound.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now