cooling system not circulating

1994 CHEVROLET TRUCK
142,000 MILES • V8 • 2WD • AUTOMATIC
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STEVE64
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  • 2 POSTS
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?
Aug 6, 2011 at 4:32 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
Maybe the water pump?
Aug 6, 2011 at 5:07 PM
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STEVE64
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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.
Aug 6, 2011 at 5:48 PM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
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.
Aug 6, 2011 at 6:24 PM
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