80Q cooling fan...Help!

[Brian Link <bflink@ouray.cudenver.edu>]

My friends 88 80Q cooling fan didn't work.  He asked his repair shop to
look at it when they were doing other things to it.  In short they
replaced the thermistor and now the fan runs constantly.  The shop said a
few hours of electrical trouble shooting would be necessary to find the
probable short.  I think it is a dirty relay or bad temp switch.  If any
one has trouble shooted this same problem please let me know.

Thanks
Brian Link
Boulder, CO.