Quote:
Originally Posted by cdowns
if you had one fail especially if rusted i''d worry that all the others are about 5minutes away from failing too
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Agreed. Likely all the plugs are in bad shape. Some people like to install Brass plugs. No rust but they do expand at a different rate. Have seen a couple pop out under extreme conditions. And I also agree that removing the engine is the only way to properly replace all the plugs.
To expand on slomotion's post #9 ... "freeze plugs" and "core plugs" are often confused. What your Chevy has are core plugs, the ones with a tall shoulder. Not designed for freezing. The real freeze plugs are dish shaped & mount against a ledge in the block hole, bump outward. The center is dimpled inward slightly to expand it & hold it in place.
This is only a
temporary fix ... you can install an expandable rubber freeze plug after the bad steel plug is removed to get you going again.