Hi,

My 1996 Rodeo 3.2L v6 overheats when stopped in traffic or idling.
However when I start moving again and pick up some speed, it cools
off.  The fan clutch seems to be ok (ie) it does not spin freely when
I give it a push when the engine is off.  There is resistance and it
does not spin more than 1/2 a turn.  Turning the heater full blast
when it overheats seems to help a bit but not by much.  Coolant
levels seem ok.  Any idea what the problem might be?  Is there
a way to tell if the water pump and thermostat are ok?  I want
to see if I can fix it myself without having to take it to a dealer.
Any ideas or suggestions are appreciated.

Thanks.