Originally Posted By: Nick R
The loudest fan noise I've heard (besides semis, dump trucks) is a Dodge dakota. That thing ROARS like nothing I've heard before.
My '97 Dakota has the HD fan and clutch on it (it's a 9-blade fan, vs. the normal 5-blade) and the fan roar is as loud as I've ever heard. It'll roar for the first 60-90 seconds of driving after a cold start, and there's a significant drag on the engine when it does. I've only heard it begin to roar once on a super hot day, after sitting in a drive-thru lane. Other than that, I can never hear it "engage".