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If the intake is aluminum your antifreeze ate a hole in it.The same thing happened to me on my wifes van ,I was able to fix the hole with JBweld and 3 years later still no problems ... Good luck.

Essentially, poor design. Gm's 3.1 and 3.8 motors are notorius for them failing. Even the Lincoln 4.6 falls into the same category.

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โˆ™ 2015-07-17 17:41:00
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Q: What would cause a hole in the intake manifold?
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The leak would vary on the size of the hole or seal failure.


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