2TDIguy
Veteran Member
- Joined
- Nov 23, 1999
- Location
- Lincoln, NE, USA
I an reach in and spin the fan on the clutch easy at about any temp. (engine off). What is the functional theory as to when it locks up? I reached in and tried to spin my Duramax clutch fan today and it was like it was full of 900W oil. Very stiff.