Cooling fan question...


machoheadgames

Certified YJ Researcher
Supporting Member
Joined
May 19, 2020
Messages
378
Location
Dallas, TX
Once had an aftermarket fan that wasn't off-set, and at certain engine speeds it sounded like a small aircraft.
Something to do with harmonics.
My previous ranger and my Frontier both have plastic blade clutch fans, and they have equal spacing between them all, so no offset. Can’t say they’re noticeably louder than the Jeep due to their Fan blade design, really all 3 vehicles sound like hurricanes. Maybe if the trucks had metal blade fans, they’d be louder than than the Jeep though? No idea. Really doesn’t matter to me, if I can hear it, I know it’s cooling :ROFLMAO:
 

Steel City 06

Member
Joined
Apr 13, 2020
Messages
26
Location
Pittsburgh, PA
It was actually a common swap on TJs to switch to an 11 blade Ford Explorer fan and HD fan clutch. Now that makes some noise. Also moves a ridiculous amount of air.