EDIT: GM Part #24503488, $6. Also known as vacuum manifold.
So, I broke the little 1/2" of tube off this guy (arm slipped which changing spark plugs - feel like an idiot). It had a rubber cap on it. I don't see any way to repair it, so I guess it needs to be replaced. Only problem is that I wouldn't know what to call it. Can anyone help?
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