IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

06 upper intake manifold

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Old 04-21-23, 11:28 AM
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LEXXXUS801
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Default 06 upper intake manifold

Has anyone split open the upper intake manifold before? Out of no where sounds like there is a marble bouncing around in there at about 1k rpm. I've read some threads about the butterfly valve but I realized that's for a different manifold. Mine doesn't have the yellow tank on the end either for the acis. Boggled, but want the damn sound gone. Read it could be a loose baffle as well. Looking for input.
Old 04-22-23, 01:54 PM
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2013FSport
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Originally Posted by LEXXXUS801
Has anyone split open the upper intake manifold before? Out of no where sounds like there is a marble bouncing around in there at about 1k rpm. I've read some threads about the butterfly valve but I realized that's for a different manifold. Mine doesn't have the yellow tank on the end either for the acis. Boggled, but want the damn sound gone. Read it could be a loose baffle as well. Looking for input.
Yes, look in the build thread section for user Ultra4. His is a 250 tho.

Can you place a stethoscope to it to locate? Also cheapo borascope tools that wifi to your cell phone might be a good inspection tool. The TB comes off easy.
Old 04-23-23, 04:54 PM
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Yodog
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Subscribed since I got this issue too




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