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Bog down moan sound issue solved!

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Old 08-05-2012, 03:58 PM
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Default Bog down moan sound issue solved!
Through testing with a few other members we have SOLVED the moaning and bogging issue with the 5.4L engine. CHECK THE LOWER SIDE OF YOUR AIR FILTER TRAY FOR A FOAM GASKET AROUND THE BOTTOM EDGE. IF IT IS MISSING OR ALTERED ANY WAY IT IS THE PROBLEM. IT ALLOWS THE ENGINE TO SUCK MORE AIR AND BOG DOWN / MOAN.
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Old 08-05-2012, 04:39 PM
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Originally Posted by theduke308
Through testing with a few other members we have SOLVED the moaning and bogging issue with the 5.4L engine. CHECK THE LOWER SIDE OF YOUR AIR FILTER TRAY FOR A FOAM GASKET AROUND THE BOTTOM EDGE. IF IT IS MISSING OR ALTERED ANY WAY IT IS THE PROBLEM. IT ALLOWS THE ENGINE TO SUCK MORE AIR AND BOG DOWN / MOAN.
You have pictures of this foam gasket?
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Old 08-05-2012, 05:32 PM
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X2 on that as well. And any info or result feed back would be great as well.
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Old 08-05-2012, 05:33 PM
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Left is the old one (missing gasket but can see where it was once there) right is new one with foam



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Old 08-05-2012, 06:41 PM
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I'm not sure what sound you're referring to, but I just checked mine while I was already under the hood and it's completely worn away.
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Old 08-05-2012, 08:41 PM
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I have a CAI and i have this annoying bog/moan...why is this?
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Old 08-05-2012, 09:22 PM
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Chances are it is running lean like it does without this foam gasket in place
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Old 08-06-2012, 06:27 PM
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I looked at mine today and the foam was pretty well gone. I used a piece of rubber that works around your house doors and windows. Will have to see how it holds up.
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Old 08-06-2012, 06:59 PM
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I bet you notice better idling, no bogging under light acceleration, and no moaning sounds
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Old 08-06-2012, 07:13 PM
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ok i have the bog down moan, but i have Rousch CIA where would i put the strip, also it sound a lot worse when i have the AC on what can i do
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