Air under flooring ??

[jamesnana]

We noticed that when we are on the road, the floor puffs up like air is coming in under it. I also noticed that when I opened the bathroom drawer while traveling, air rushes in. This is crazy, where could this be coming from.
We took it to dealer last year and they supposedly fixed this. Seems like the only time things are fixed correctly us when we do it ourselves.
This is a 2013 SunSeeker 2860ds.
Anyone have this problem or any ideas??? Thank you!

[bgilly]

Probably from the openings in the floor in the vanity area. Check the area where the lines go through the floor and make certain there is foam insulation filling the cavity of the holes.

I found some leakers one day when I had the air conditioner on in the coach. I was in the outside compartment under our shower and I felt the cold air from the camper escaping. I found a 2" bored hole for some wiring was only foamed filled on one side - apparently they couldn't reach all the way around from the top side and probably forgot to check it n the bottom side. I bought a can of Great Stuff and filled several voids found.

[jamesnana]

Thanks, that's a good place for us to start.

[DMezzoprete]

I have the air under the floor when driving but I've never had any air coming from the vanity.

[bgilly]

I mention the vanity because the OP mentioned a lot of air at the bathroom area. There are several floor penetrations in the bathroom and some in the bedroom and kitchen. They should be inspected from the underside off the coach to make certain they are sealed well.

[jamesnana]

We had our motorhome back to the dealer last year to inspect, and they told us they sealed some areas. My husband said the mileage was the same when he picked it up. They never drove it to check. We are going to be in touch with Forest River and find another dealer to take it to.
Floor feels like you are walking on a moon bounce when riding down the road!