Siunds more like a visous clutch fan. It's bolted tho the water pump hub and belt driven. Electric fans are attached or mounted against the radiator and are driven by an ekectric motor that is relay controlled. Electric is quieter, yet can be heard when they kick in. Only because it is at an idle or low speed.VC fans can be very noisey depending onwhar srage of engagement it's in. Both fans are negated by the ram air effect at speeds above 35 mph. If your fan is noisey throughout the acceleration and shift range and variable levels of noise are exoerienced in down sgifting, You have a viscous clutch fan.
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