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Old 11-12-2012, 12:45 PM   #1
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National RV Owners Club
Freightliner Owners Club
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Location: New Jersey
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1998 National Tradewinds 7370

I purchased a 1998 National Tradewinds Model 7370 with a 300 HP Cat. It drives great, however when going at highway speed (60-65) there is humming noise coming from the front. This seems to be a wind noise, cause when I get behing a truck and the wind is blocked it stops. Is this common and can it be fixed.

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Old 11-12-2012, 02:31 PM   #2
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Workhorse Chassis Owner
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I suggest you post this to the National RV Owners section of iRV2. You will get much better responses/advice from other NRV/Tradewinds Owners. Also, look up the National Owners Club in your area. Join them and you will be admitted to a great club and much knowledge.

In the Southwest, it is the Dolphin Club The Dolphins, and the Pacific Northwest it is the PacNats PacNats Home

There are others across the US as well.

Happy Trails!


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Old 11-13-2012, 08:33 AM   #3
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I am not sure if the 1998 is the same as my 2000, but mine had an opening above the drivers side mirror. This originally was where a CB antenna had been mounted. This opening howled in the wind and allowed water into the coach in the rain. I covered the opening with aluminum tape. No water, no howling.
Charlie & Mernie Matthews
Liberty Lake, WA
2016 Denali Fifth Wheel
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Old 11-13-2012, 12:40 PM   #4
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It could be caused by any of the protuberances on the roof. When I added a sat dish, I picked up some wind noise I didn't have before. Also make sure your driver side window is fully shut. I have gotten a different noise from that as well. Although much quieter than my old gas coach, it is no Lexus.
USN, Retired
2002 Tradewinds LTC Founders Ed
2004 Tundra Double Cab toad, 2007 Honda Goldwing
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Old 11-14-2012, 06:30 PM   #5
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We have the same unit and found a gap in the front door seal and have since added a gasket seal around the door. We found it on our last run of the years so we aren't sure if that will do it , but sure will help the rattling besides.
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