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Leaking Coolant


iamcams

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My coolant is leaking from a little hole under the petcock valve. Any help?
1723647712252.jpeg
 
Last edited:

Cees Klumper

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You might try that flexible rubbery black repair tape that you wrap tightly around a small leak, after which it sort of fuses itself to itself. Hardware stores typically carry it. Let it sit for a few hours before testing it.
 

rusty ol ranger

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Ive used seal all (yellow tube about 6 bucks at a hardware store) to seal tiny radiator leaks before.
 

Uncle Gump

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That doesn't appear to even be the correct petcock for the radiator. I believe there should also be a rubber sealing washer that it tightens down on.

My Google search comes up with this Dorman part...

1723724570383.png
 
Last edited:

Curious Hound

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Looks like a leaky petcock to me.
 

Curious Hound

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Shran

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That doesn't appear to even be the correct petcock for the radiator. I believe there should also be a rubber sealing washer that it tightens down on.

My Google search comes up with this Dorman part...

View attachment 115508
I've seen those white plastic hex petcocks on several radiators. I don't know if they were the OEM part or aftermarket but they were definitely used in our trucks at some point.
 

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