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Cracked Intake Manifold

2662 Views 2 Replies 3 Participants Last post by  JohnW
Is there an easy way to tell if I have a cracked manifold?
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It is most likely at the rear of the manifold if you have a leak, that is where they errode most of the time. Use the propane trick or spray the manifold with something like WD40, the rpms will change when you find a leak on the intake side. I assume you are meaning the intake, since the exhaust side generally shows up.
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