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Ford Inline Six, 200, 250, 4.9L / 300
How do you test for lower intake leak?????

How do you test for lower intake leak?????

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Oct 7, 2005 | 07:52 PM

#1

meck1

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Tuned

Joined: Feb 2003

Posts: 426

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How do you test for lower intake leak?????

On the EFI models, how can you test to see if the lower intake manifold is leaking, either at the gaskets or due to a crack in the manifold?

Thanks

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Oct 7, 2005 | 09:04 PM

#2

andym

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Joined: Mar 2002

Posts: 19,402

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From: Bonita Springs FL

Spray some carb cleaner around the contact surfaces. If the idle jumps up, you have a leak. The vacuum will suck the fluid in and combust like gas will.

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