Serpentine belt pulley question
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The harmonic balancer crank pulley does not have small bearings like the others, it is supported by the crankshaft bearings and they most likely are not squeaking. You may want to slip off th belt and turn everything else looking for rough spots. Or poke one end of a yard stick against things, like the pulley bracket, and your ear against the flat side of th other end of the yard stick.
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