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Help Needed on Intake Noise
The other day I was sitting in our exploder and noticed kind of a hard urpp noise every time the engine would shed load while parked. So I decided to investigate and was thinking it was either the water or power steering pump. But apparently it is coming from the intake. When I place my hand on it there is a vibration when it makes the noise. So I pulled the cover and it is very loud when this happens. Our truck is a 2003 Eddie Bauer with the 4.6L V8. I replaced the PCV valve but no change though it does seem a tinch quieter might just be my mind. I was thinking maybe the EGR valve? Not quite sure what all to look at. There is no change in performance or gas mileage. Any help would be greatly appreciated. Thanks
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