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On a 1993 Chevy 4.3-liter V6 engine, freeze plugs (also known as core plugs or expansion plugs) are typically located on the engine block. You can find them on the sides of the block, and there may also be one or two located on the rear of the engine. Their primary function is to allow for the expansion of coolant and to prevent the engine block from cracking in the event of freezing temperatures. If you're inspecting or replacing them, ensure that the engine is cool and drained of coolant.

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2mo ago

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