The fan clutch should engage after the temp under the hood reaches a high temp. You shouldn't hear it all of the time, especially in cold temps and driving. Before anything, is the engine temp running normal (not overheating)? If so, chances are the clutch is bad. You could remove the serp belt and start it to see if the sound is gone. However, do not run the engine more than a few seconds because it will over heat quickly.
Let me know what you find. Oh, and yes it will require about a 6+ in strength to remove it.
Saturday, January 31st, 2009 AT 3:00 PM