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FWIW when my water pump started to leak through the bearing, it didn’t make any noise at all. OTOH, when the idler pulley tensioner for the serpentine had its bearing go, that made a racket but even that was only audible at idle with the window down.
The radiator and A/C condenser can be gently separated to clean the accumulated debris in between them without completely removing and disconnecting them. There are things on the side that can be undone.
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