Coolant leak behind crankshaft pulley

InspectahDEck · Sep 20, 2024

I have (another) coolant leak I'm tackling. After rinsing the underside from all the coolant sprayed everywhere, I tracked down the leak from the area in the image attached. Everything above that point is dry. Is this leak a symptom of a cracked head or possibly an intake manifold gasket? Any assistance is greatly appreciated

89Suburban · Sep 20, 2024

It's probably the weep hole or front seal on the water pump.

strutaeng · Sep 20, 2024

Agree with @89Suburban

The intake is dry; no coolant passes through the intake.

I once had a leaking water pump that gave me a hard time. I replaced the gaskets where it bolts to the block, and the leak got worse. I was finally able to use an inspection mirror to see it was leaking right under the pulley of the pump. I had reinstalled the pump twice by then.

Scottydoggs · Sep 20, 2024

thats the water pump for sure. they leak out the weep hole. you can find it with a mirror. bottom/backside of the pump.

InspectahDEck · Sep 20, 2024

Solution then to just buy a new pump?

Marky Dissod · Sep 20, 2024

InspectahDEck said:
Solution then to just buy a new pump?

Ask a parts monkey if you may EXAMINE a brand new H2Opump.
If the brand new H2Opump has a pee hole in the exact same spot as in your pic, then yes, buy a new H2Opump.

Coolant leak behind crankshaft pulley

InspectahDEck

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89Suburban

Bull in the china shop

strutaeng

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Scottydoggs

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InspectahDEck

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Marky Dissod

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