How do I diagnose if the cooling fan clutch of a 1999 Ford Transit van 2.5 turbo diesel is worn out. Also if the centre bearing is worn can that be replaced or am I required to buy the complete unit.

Garry, March 2012

you can get centre bearings from motor factors now which would save you a bit,your viscous fan should have no play when you work the fan side to side,sometimes they are noisy and when you rev the engine you normally see it slowing down a bit,some have left hand threads to remove but yours is a normal r/h

cdc, March 2012