bryoderwls wrote:
The motion is side to side and happens when large vehicles pass on the interstate, going down hills and any time I get over 55 mph. The only reason I've been told about the air suspension is because it is an "air bag suspension" and works like a balloon. The air moves and therefore causes the sway.
The Expedition only has 69000 on it. One garage I went to about it said, "I get this concern about 10-15 times a year. Ford knows it is an issue and hasn't done anything to fix it. The options are to replace it with a different system for about $2,000 or trade it in."
The way you describe your towing condition above you are experiencing trailer sway. That is not "floating". You can correct trailer sway by utilizing an anti sway hitch design. The 2 common manufacturers are Reese Dual Cam hitch and Equal-i-zer Anti Sway hitch. Do a search and read up on those. They should be in the $1,000+ or - range installed. There is also the Hensley anti sway hitch which is considered the best available but it is in the $3,000 range. Your sway problem is 90-95% curable with either of the common hitches I've mentioned.
olddesertrider