We drove our 1991 from San Mateo to Palm springs without incident, drove
like a dream.  Today we went out shopping and after about 7 miiles the
coolant temp warning came on, and the temp needle was at the verge of
entering the red zone.  We pulled over and let it cool down to half way (the
coolant bottle was full).  We drove home with the heater in the cab full
blast and that got us just about home before the coolant temp warning came
back on.  I held onto the radiator fan when it was hot, and had someone
start the car and there was no real pressure in the fan wanting to spin,. I
mean if I let go of it, it would spin but I could stop it with my bare hands
and hold it in place with one finger.  Does that sound like our fan clutch
is shot and needs to be replaced or is that normal for a car that is hot?

Thanks,