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Old 04-08-2007, 08:46 PM   #1
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why does my intake makes so many noise when my engine is cold
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Old 04-08-2007, 08:50 PM   #2
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Your intake is no longer resonated, it will be louder when it is cold out, because the engine is warming up.
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Old 04-08-2007, 08:50 PM   #3
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we need more info on the noise and where on the intake?
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Old 04-08-2007, 08:54 PM   #4
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it is in the filter its is like it were sucking air like a vaccum cleaner and when it warms up its gone
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Old 04-08-2007, 08:56 PM   #5
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its from the FWI. it is sucking in more air than the stock filter.
most of it is just an echo like sound because of the tubing.
if you can make the tubing as straight as possible it will be quieter
doesnt it quiet down after about 1/4 of a mile or so?
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Old 04-08-2007, 08:59 PM   #6
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yeah it goes out when it warms up a little
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Old 04-08-2007, 09:00 PM   #7
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Gutted air box will do exactly the same thing. I'm pretty sure it'* not due to increased air volume, only the idle air control valve being audible on cold startup.
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Old 04-08-2007, 09:01 PM   #8
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but what i want to know is why its is so loud when it is cold and when it warms its not
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Old 04-08-2007, 09:01 PM   #9
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Because the IAC is open further to let more air in to warm the car up faster, and as it warms up, it will close more and more and adjust accordingly.
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Old 04-08-2007, 09:43 PM   #10
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thanks for the info
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