On my 98 Contessa, teh step cover would refuse to move for up to 5 minutes, then would slam open, or closed. I had a tech spend a few hours working on it, and it now works most of the time. I don't know all of what was done, but I do know that there are adjusting screws on the regulator, located below the step cover, accessible by sitting on the ground under the middle of the front of the coach. Some tweaking of those screws, after taking the whole mess apart and cleaning it up.