Greetings Allan,

I'd say the aux fan has probably seen better days. I'd return it and have them show one in operation, or hook it up to your battery before leaving the lot for smooth operation. The clutch can also be bought used as well, I have one that was used and seems to work fine. Your best bet on that one would be to get one that is still installed on a car if they have one. You should be able to see leaking fluid as well as whether the sealing ring that faces the fan in intact and seated properly. If the fan isn't kicking on at the proper temp, then the switch I spoke about in my previous post will likely need to be changed, fastlane sells them for $12 I believe.

Charles