COOLING SYSTEM NOT CIRCULATING
1994 Chevrolet Truck • V8 2WD Automatic • 142,000 miles
94 Chevy pickup 350 motor. cooling system won't circulate. no sign of leak and I took out the thermostat.What could the problem be?
Maybe the water pump?
GM uses a pump pressed on a shaft which never comes off. I have herd tell of the pump fins wearing off to the point that it doesn't pump but this would be an extremely rare event. The pump is only a few years old.
Backflush the engine block and flush the radiator. All I can do is make suggestions, I can't see anything from here. If you don't like my answer, post the question again and I will leave you alone.
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