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Coolant is drawn into the water pump via the lower radiator hose, the water pump pushes the coolant thru both sides of the block and up into the back of both heads, thru the heads then out the front of the heads into the intake manifold then thru the thermostat and into the upper radiator hose into the radiator.

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What direction engine coolant flow on 2000 Chevy S-10?

The coolant enters the engine by way of the lower radiator hose and exits the engine by way of the upper radiator hose.


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