Air Filters and Intake Manifolds
Ford Explorer Sport
Ford Explorer XLT

What would cause a hole in the intake manifold?


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Wiki User
2015-07-17 17:41:00
2015-07-17 17:41:00

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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The leak would vary on the size of the hole or seal failure.

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Remove the intake manifold and take it to a welding shop that works with aluminum. Let them determine if it can be saved or not.

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There is a tapped hole next to the distributor hole in the intake manifold.

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On a small block Chevy the distributor goes through a hole in the intake manifold. On a Pontiac the distributor goes behind the intake manifold.

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the pcv valve is located at the gack of the intake manifold there should be a gromet at the back or a big hole if theres a big hole you also need the gromet and it connects to the carb and air cleaner. I hope this was helpful It's in-line in the hose on the back of the intake manifold.

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