Quote:
Originally Posted by Aurora40
Jim, I don't believe this is coolant bypassing the radiator. That should only happen when the pressure gets high.
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Bob, Looking at the picture I posted, the bypass valve has two openings (notches) that allow flow to bypass the radiator even when the bypass valve is closed (low pump pressure). In the picture only one notch is shown. The other is just as large and together I think that they cause a relatively large amount of water to bypass the radiator even at low water pump pressure/flow.
Jim