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1998 Jeep Wrangler Question: Crankshaft leaking

 

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Finedell123, 4.0L 6 Cylinder, Birmingham, AL, March 28, 2011, 18:25
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How do I know if it is my crankshaft that is leaking and not the water pump? I cannot get a good view of the water pump that is above my crankshaft.

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, March 28, 2011, 19:19
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     Master

    Crankshaft front seal will leak engine oil )not antifreeze) The water pump will leak antifreeze (and not engine oil). A garage would pressurize the cooling system using a device that looks like a bicycle pump and it would help locate the leak. A leaking water pump may show signs of excess play and may growl when the engine is running.

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    Visitor, March 29, 2011, 07:34

    Thank you. I was trying to tell my friend that I doubted the crankshaft would leak antifreeze.

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  • Answer #2

    ZeeTech March 28, 2011, 20:54
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     Master

    Just like Patrick said. No water could leak from the crank shaft seal. It is more than likely the water pump, unless the thermostat housing or the hose leaks and the coolant runs down.

    Zee

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