My 2005 Gulf Stream Endura has developed a very worrisome weak and spongy feeling floor right in front of the kitchen sink as well as a very annoying squeak just in front of the the dining table. My first thought was that a leak of some kind had developed under the kitchen sink but after a very thorough inspection I can find no indication of any leaks which may be causing this. Because of the the underpinning it is impossible to determine what may be causing this by looking underneath the unit.
Has anyone else experienced this kind of situation and if so what was your solution to the problem, if any? I really don't want to tear up the kitchen floor if I don't have to.
My brother-in-law owned a 2005 Gulf Stream Endura. I believe it was a model 6316. He had problems with a spongy floor, but on his it was near the rear axle. He convinced the factory of Gulf Stream to remove the floor in that area, beef up the support, and replace the floor. No problems after that. I believe he said that there were several other units that had that done.
2002 Trail-Lite Model 211-S w/5.7 Chevy (click View Profile)
As already mentioned early (04 & 05) had problems with floor being weak over the rear wheel. Reinforcing this area solved the problem. The Endura's have two 3/4" thick sheets of flooring plus a layer of foam insulation. Then a sheet of galvanized sheet metal next to frame. If water got between sheet metal and flooring. You could end up with the problem you are talking about. Check for water leaks at the water heater. It is located between sink and stove.
Thanks for the replies Gene and Ron. I hadn't thought about the water heater leaking but I will check that out. The unit sits on a concrete pad and I haven't noticed any water underneath nor does the water pump cycle intermittently which would indicate a leak somewhere when I am not hooked up to city water. I may have to call the factory and see what they recommend.