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Old 05-02-2002, 02:03 AM
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haasman haasman is offline
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Join Date: Jun 2001
Location: San Francisco, CA
Posts: 3,096
I had a '77 280SE that had a split exhaust manifold. It had the same problem but I couldn't find which section was leaking.

I finally used a short piece of garden hose and held one end close (but not on) the manifold area and the other to my ear. I moved it back and forth and quickly found the area of leakage.

I should also forewarn you to not put the hose right-up to your ear as it was VERY loud.

Give it a try.
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