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67 Post GS · 02-09-2025, 05:08 PM

I would go-ahead and replace the plastic upper intake all together. They will warp over time, and then you put a fresh gasket underneath and it will still leak. Dorman makes a replacement.

02-09-2025, 05:08 PM	#6
67 Post GS Junior Member Join Date: Aug 2011 Location: Buffalo New York Posts: 80 Likes: 10 Liked 49 Times in 11 Posts	Re: 2002 Buick 3800 I would go-ahead and replace the plastic upper intake all together. They will warp over time, and then you put a fresh gasket underneath and it will still leak. Dorman makes a replacement.