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12-05-2020, 07:13 AM
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#1
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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Anthem Step vibration or wind noise
At about 65 to 70 mph I have an awful noise like a piece of paper flapping in the wind. I have read all the older posts here from different guys that fixed their step noises and apologize in advance posting a new thread. Had the coach at NIRVC and verified my awful wind noise but they could not fix the problem and seem to think it’s a vibration not wind noise. I am going to be foaming and insulating the step drawer today but want to make sure I get everything while doing it. I can’t see where everyone is spray foaming their steps from the back side or under the step cover. My whole step box is wrapped with a black tyvek type material and appears no way to spray foam into the box. NIRVC taped the outter top perimeter to try and cure the noise possibly this is blocking my access? I purchased a can of good stuff spray foam and a roll of rock wool sound deadening insulation for the drawer section just need to address the rest. I understand if some are sick of seeing this question again but I can’t take driving this rig with this noise it’s not enjoyable. Thank you all in advance.
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Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-05-2020, 07:36 AM
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#2
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,569
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Here is a long photo post of what we did on the Classics. Lots of photos of where to foam on the frame of the step well, etc. The tubing of the frame was howling as the wind passed it on my coach.
Using a piece of 1/4 in tubing taped to a 1/4 dowel will allow you to get into those can't reach spots. There are photos of the tool I made in the post as well. Lots of great feedback from others on the 5 pages.
https://www.irv2.com/forums/f278/lot...-217444-3.html
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Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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12-05-2020, 08:03 AM
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#3
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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I pulled back the gray duct tape NIRVC used and this is what I found. Did someone cut that tyvek material or was this a factory issue in your opinion? Not sure factory would leave wood exposed there.
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Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-05-2020, 08:18 AM
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#4
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,569
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Not sure what part of the step that is, looks to be inside? My steps had nothing there but an air gap. See if you can match up the photos of where that wood is to my photos where I had to add foam.
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Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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12-05-2020, 08:38 AM
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#5
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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See comparison. Yours was not cut like mine is
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Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-05-2020, 11:09 AM
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#6
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,569
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It's hard to say if the factory saw the gap and filled it with what was handy, or if it is was the dealer trying to fix the problem. I would spray it with some quality paint or undercoating to seal it.
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Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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12-05-2020, 11:09 AM
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#7
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Senior Member
Join Date: Nov 2017
Posts: 385
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You probably have the same issue as many with wind noise from the step area. I would also check the bottom bolt that holds the fender in place. It is a flimsy design with a long bolt and spacer. Mine was loose down low and the fender made a hell of a rattle noise at cruising speed. Just a fwiw just in case.
Best of luck.
Tor
2017 Anthem44B
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12-05-2020, 11:16 AM
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#8
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Senior Member
Entegra Owners Club
Join Date: Apr 2007
Location: SW FL
Posts: 31,569
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Quote:
Originally Posted by 737 Driver
You probably have the same issue as many with wind noise from the step area. I would also check the bottom bolt that holds the fender in place. It is a flimsy design with a long bolt and spacer. Mine was loose down low and the fender made a hell of a rattle noise at cruising speed. Just a fwiw just in case.
Best of luck.
Tor
2017 Anthem44B
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Good advise, I forgot about those. Now that you mentioned it, I used long hex head concrete screws used to screw down pool enclosures as that is what I had on hand. They worked great.
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Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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12-05-2020, 02:52 PM
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#9
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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By removing the tape and spraying whole box with foam I did see it ooze through to the inside step cover frame. I also used rockwool sound insulation and packed the step drawer. Once I get back on the road we will see if that solves my problem. Thank you everyone for your input!
__________________
Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-05-2020, 05:25 PM
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#10
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Senior Member
Join Date: May 2016
Location: Highland NY
Posts: 3,881
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If you look forward in and from your wheel well, there is a piece of ABS about 18" x 10". It appears to act as a sort of reverse mud flap, maybe to protect the stair mechanism from catching debris slinging from the tire? It's secured along the top edge with some screws into the frame. In my case that ABS began to tear just below the attachment point and at ~60mph would flap/vibrate and make an awful, rhythmic banging noise. This was on my 18 Anthem. The mother ship sent me a new one which eventually tore in the same area, so I just removed mine all together.
Hope this helps
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Bruce, Lisa and the pups, Charlie, Opie and Rebel
2021 Cornerstone Y Azure
2018 Anthem, Victory Blue Sold, 2019 Ram Laramie 1500
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12-05-2020, 08:30 PM
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#11
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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Bruce, funny you say that mine tore as well so I ripped it off and never bothered with replacing it but thanks for pointing it out. I am on my second set of steps due to a hammer rivet coming loose making the steps wobble so the guard/flap is the least of my problems on the steps I guess.
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Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-06-2020, 06:28 AM
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#12
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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After the foam sitting overnight my step cover has no power at the switch. Checked the fuse and fine. I’m worried the foam that oozed through could have messed something up. Any ideas? I can’t reach the strap to manually pull it out either.
__________________
Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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12-06-2020, 11:34 AM
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#13
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Senior Member
Entegra Owners Club Spartan Chassis
Join Date: Mar 2015
Posts: 279
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Quote:
Originally Posted by buddy110
If you look forward in and from your wheel well, there is a piece of ABS about 18" x 10". It appears to act as a sort of reverse mud flap, maybe to protect the stair mechanism from catching debris slinging from the tire? It's secured along the top edge with some screws into the frame. In my case that ABS began to tear just below the attachment point and at ~60mph would flap/vibrate and make an awful, rhythmic banging noise. This was on my 18 Anthem. The mother ship sent me a new one which eventually tore in the same area, so I just removed mine all together.
Hope this helps
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X 2. We had the same problem. Took us 8 months to figure it out.
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Bryan & Charlene "Furry Kid Tucker"
2020 Entegra Anthem 44W Tango
2018 Entegra Anthem 44A (Totaled due to flash flood)
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12-24-2020, 07:18 PM
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#14
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Senior Member
Join Date: May 2019
Location: Daniel Island, SC
Posts: 121
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To all who have posted any assistance to my post I appreciate all of your suggestions. I finally have no more wind or vibrating noise after following responses on this forum.
It is the first time I have driven my rig with no noise and could not be happier on my way to Pelican Lake in Naples.
Chuck I very much appreciate your detailed previous old post and pictures as they helped tremendously compare to my step box. I even followed your direction in making an extension to spray the foam far up on top which made it easier.
I did end up wearing quite a bit of spray foam but well worth it. It was time for a haircut anyway.
Thank you all again, so appreciative really.
__________________
Joe, Paula, Joseph, Preston
2021 Midwest Automotive Passage 170 EXT
2020 King Aire 4531-Sold 2019 Anthem 44F-Sold
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