I have been trying to figure out what is causing an overheating probem on my 97 Monte Carlo 3.1L (190,000 miles).
I have already flushed the coolant, replaced the thermostat and the radiator cap without any change in the overheating problem except that now the heater doesn't blow hot air. Now I'm trying to determine if it might be the water pump even though there doesn't seem to be any leakage. I removed the pump today and I can't see anything obviously wrong - the fan blades look like they are in good shape.
However, if I hold the pulley on the outside of the pump I can still spin the fan blades. Is this supposed to do this?
Friday, March 23rd, 2007 AT 8:14 PM