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Old 06-27-2016, 05:15 PM   #1
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Intermittent air noise

Since I am new to RV's got a used 2001 FW Bounder and everything seems fine for first trip a few weeks ago. But today I was over at where I keep it stored and after just completing the CHF yesterday I started it to move and noticed a sound like air coming from front area of MH. The sound is not constant but is very regular intermittent. Hope I am explaining it right, any ideas what it could be?
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Old 06-27-2016, 09:41 PM   #2
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Was it a hissing sound or more like a whooosh?
Was the engine idling when it made the noise?
If you have air-ride type levelers it could be the little compressor pumping air and possibly leaking? (Hissing)
Sometimes, with a cold engine, the transmission sounds like a jet engine (whoosh) but it usually goes away after a minute.

Also, I'm sorry, IDK what CHF means.


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Old 06-28-2016, 08:00 AM   #3
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The engine was running, did not hear it with engine off. I do not have air ride but it did sound like could be from air pump, I do have levelers and maybe they are air operated.
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Old 06-30-2016, 02:28 PM   #4
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Check your rear view camera. There is usually a volume control and if it is on it will give off a hissing sound. Been there----done that.
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Old 07-01-2016, 08:40 AM   #5
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If engine running could it have been unloader on dryer?
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Old 07-02-2016, 06:01 AM   #6
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Could be a vacuum leak?
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