COOLING SYSTEM NOT CIRCULATING

  • Tiny
  • Steve64
  • 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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Saturday, August 6th, 2011 AT 4:32 PM

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  • Tiny
  • JDL
  • EXPERT
  • 16,287 POSTS

Maybe the water pump?

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Saturday, August 6th, 2011 AT 5:07 PM
  • Tiny
  • Steve64
  • MEMBER

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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Saturday, August 6th, 2011 AT 5:48 PM
  • Tiny
  • JDL
  • EXPERT
  • 16,287 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.

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Saturday, August 6th, 2011 AT 6:24 PM

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