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Old 02-04-2008, 07:14 AM
Ferdman Ferdman is offline
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Join Date: Aug 2002
Location: Southeastern PA
Posts: 2,984
That's the engine block coolant drain plug ... tighten it. If you loosen it you're going to drain all the coolant from the engine block. When/if you want to drain coolant from the engine block use a piece of clear tubing over the plug to a bottle/drain pan ... prevents a wet mess under the car.
Fred Hoelzle
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