fan clutch ??

[todd]

how much resistance shoud the fan have when turning it by hand when its completely cold ? trying to figure out if mine is going bad is there a better way to test it

[vitalidle]

Should have some resistence. Shouldn't free wheel.

[adfields]

Also should not wiggle, but I bet you know that. The important thing is that it lock in when it's needed. I don't know a proper test for it but with my winter front on pulling a E250 van up a little hill last night I heard mine come on, and it was -22f. So that could be a way to test it, but if it feels snug to turn and don't wiggle I bet it's fine.