humming sound on prevost...any ideas

[statedrive]

on a trip to Florida my prevost started to make a sound ( like blowing across an empty soda bottle)
and it has to be air flowing over something because when a truck passes us, it goes away for a short time
any body ever experience this   thanks  dave

[jlaney]

hello
i  have an 80 model prevost and have some air leaks.
check for duct tape behind the front bumper. someone
used it too stop the air leak. thanks j.t.

[PP]

Our's makes a humming noise also, but only when traveling in a Northwesterly direction at 53 MPH and the wind is out of the Southwest at 5 to 7 MPH. Or was that Southeast at 10MPH?
Actually, it was a very small gap where they ran front compressor lines through the fire wall to the condensor mounted in the space behind the front bumper. I used spray foam to seal everything and the noise went away. Good luck. Noises can be annoying when on the road, 

[WEC4104]

on a trip to Florida my prevost started to make a sound ( like blowing across an empty soda bottle)
and it has to be air flowing over something because when a truck passes us, it goes away for a short time
any body ever experience this   thanks  dave

Yes, I have heard of this happening before. In fact, there was a guy who posted the exact same question just this morning.    Oh wait, ... that was YOU.

[larryh]

Thats the sound of a buffalo pulling away from you 


gm's pulling away from you havfter blowing your door partially open .

Larry H

ps: next time I will slow down while going around you

[Len Silva]

I think it's just a hummer, that's all there is to it.

[HighTechRedneck]

http://www.busconversions.com/bbs/index.php?topic=9139.msg90655#msg90655