Mechanics

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?
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Steve64
August 6, 2011.




Maybe the water pump?

JDL
Aug 6, 2011.
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.
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Tiny
Steve64
Aug 6, 2011.
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.

JDL
Aug 6, 2011.

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