Whistle sound??!?! - Mustang Evolution

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Old 07-21-2012, 11:07 AM   #1
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Whistle sound??!?!

Hey everybody, I have a whistle sound coming from the front of the passenger side as I accelerate. As I push down farther on the pedal the pitch goes up but it completely disappears once i let off the gas. Anyone know what this is?? I recently noticed a small crack on the flange part of my cai but not sure if this would cause the noise. I will upload pic of the crack on my lunch break. Thanx
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Old 07-21-2012, 12:01 PM   #2
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That's your CAI sucking air
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Old 07-21-2012, 12:15 PM   #3
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Whenever I let off the gas after wot it sounds like a wastegate a little bit
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Old 07-21-2012, 12:45 PM   #4
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Quote:
Originally Posted by d_1212
Hey everybody, I have a whistle sound coming from the front of the passenger side as I accelerate. As I push down farther on the pedal the pitch goes up but it completely disappears once i let off the gas. Anyone know what this is?? I recently noticed a small crack on the flange part of my cai but not sure if this would cause the noise. I will upload pic of the crack on my lunch break. Thanx
I have the same problem but it's from the rear! Lol
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Old 07-21-2012, 02:21 PM   #5
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Originally Posted by Ryan7racin
That's your CAI sucking air
So it's normal? That's what most cai sound like? it's annoying as **** especially with the top down lol
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Old 07-21-2012, 02:52 PM   #6
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Quote:
Originally Posted by d_1212

So it's normal? That's what most cai sound like? it's annoying as **** especially with the top down lol
If the whistling is loud enough to bug you then it's probably because that crack you mentioned
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Old 07-21-2012, 03:05 PM   #7
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I have the K&N and it's loud but not annoying yea I would agree on it may be the crack.
But some whistle is normal.
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Old 07-21-2012, 07:57 PM   #8
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It can be your ac also my ac when it's on sounds like a damn turbo when I accelerate!!
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