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Engine overheats 1994 Toyota Pickup/3.0 VZE 3 liter------------ We replaced the radiator with a new one because it leaked. -We then discouvered that Water does not pump from radiator to the Engine (no circulations) . So we took the new radiator out to check the thermostat and water pump. The engine was full of antifreeze while the radiate had new, clean water in it which confirmed our notion that the water was not circulating. We found that boh the thermostat and water pump were in good working condition. We are stumped! Any answers?

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There's got to be something up or wrong with the pump-that's the sole source of circulation for the entire cooling system. Did you pull it off to check it? Sometimes the impeller can shear off. Or did the blades show any signs of wear? Check the belt running it too for any problem.

Posted on Apr 22, 2013

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Posted on Jan 02, 2017

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SOURCE: circulation speed is slow and the engine overheats

How about the water pump!

Posted on Jan 14, 2010

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