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It is on the drivers side on the bottom corner facing the engine. It is small and difficult to find. I used a mirror to find it. It has two ears to twist but forget that. If you look at it with a mirror, you will find it it will accept a 3/4" inch socket for a 3/8" ratchet 1/2" rachet might work. Mine is draining very slowly as I type this. Stupid GM engineers. Leon

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โˆ™ 2011-12-26 20:52:46
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Q: Where is the engine coolant drain plug on a 2001 Buick century?
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