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Topic Review (Newest First)
02-19-2013 12:11 AM
flash1034 Awesome. Thanks guys. Nothing I can do about it except put on then stock air box. Hmmmm


Flash
02-18-2013 09:41 PM
jgorm
Quote:
Originally Posted by Patrick H View Post
The extra noise is created by the IAC adjusting the idle air mixture for the cold engine. It's normal. The pintle retracts to bring in more air through the IAC's air passage to achieve fast idle. Like UnlimitedLJ04 says, the open filter element doesn't muffle the sound like the stock airbox does.
exactly.
02-18-2013 07:30 PM
Patrick H The extra noise is created by the IAC adjusting the idle air mixture for the cold engine. It's normal. The pintle retracts to bring in more air through the IAC's air passage to achieve fast idle. Like UnlimitedLJ04 says, the open filter element doesn't muffle the sound like the stock airbox does.
02-18-2013 07:30 PM
UnlimitedLJ04
Quote:
Originally Posted by flash1034 View Post
I appreciate the response, but that doesn't help. Can we get past the fact that I put on a CAI and figure out what causes the noise?
the intake itself doesn't dampen noise from the engine like the stock unit. that's the problem.
02-18-2013 07:25 PM
flash1034 I appreciate the response, but that doesn't help. Can we get past the fact that I put on a CAI and figure out what causes the noise?


Thanks,

Flash
02-18-2013 07:19 PM
UnlimitedLJ04
Quote:
Originally Posted by flash1034 View Post
Any idea what is causing the additional air intake noise/roar?
found the problem:
Quote:
Originally Posted by flash1034 View Post
I put a K&N CAI on my 2006 4.0 engine.
02-18-2013 07:18 PM
flash1034 I put a K&N CAI on my 2006 4.0 engine. Now, when it is started cold, I get a lot of intake air noise through the filter assembly. As the engine warms up, the noise slowly goes away until it reaches normal levels. Any idea what is causing the additional air intake noise/roar? Is there a valve opening up that is allowing more air to flow when the engine is cold?

Thanks,


Flash

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