The fan on my 1HDT has been getting more and more loud. Ambient temps are not much above freezing here lately, but the fan is pushing a LOT of air. The engine sounds like an old Willys with that characteristic fan roar.
I can fairly easily spin the fan by hand when cold. When it is hot, the fan has more resistance but still spins. I'm thinking that the clutch is not working properly. I get no overheat conditions, but I'm convinced that this problem is causing my engine to take excessively long to reach operating temperature.
I don't like the roaring sound - it gets really annoying at higher rpms.
I can fairly easily spin the fan by hand when cold. When it is hot, the fan has more resistance but still spins. I'm thinking that the clutch is not working properly. I get no overheat conditions, but I'm convinced that this problem is causing my engine to take excessively long to reach operating temperature.
I don't like the roaring sound - it gets really annoying at higher rpms.