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Old 01-17-2010
Thread Starter
Join Date: Oct 2005
Location: SD, CA
Posts: 32
Engine coolant sealants

Hey, I was wondering if anyone has used the blue devil sealant or the steel seal sealant, my girls car is leaking out of one of the freeze plugs. I'd change it but its impossible to get to without removing the engine, which I just dont have the tools for. Just wanted to see if anyone would or would not recommend that stuff, I'm a little skepitcal myself about it.
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Old 01-29-2010
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Join Date: Jul 2009
Location: SoCal
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IMHO… If the plug is rotted then it will need replacing.
Can you reach it an see if you can put your finger through it or a tool through it.

MAYBE, your call, try filling the hole with sealer where the plug is located and see if it stops the leak but usually there is too much grease for it to adhere to the metal; if you clean it up some, maybe.
Again, maybe sealant poured in the coolant will do something, but you are only playing games with it and the Freeze-Plug will win in the end.
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