I would swear on a stack of whatever holy book you offered that I asked this
question last year, but a search of the archives didn't turn up anything.
False memory? It baffles science. Anyway, I'm looking for help with Mellow
Yellow's sliding door: we're having trouble opening it. There seem to be
three motions involved: rotation of the handle by pressing on it (works
fine); movement of the door outward, away from the interior of the van (does
not seem to complete, I need to put my hip into it from inside the van); and
sliding rearward on the tracks (which is does just fine once the door has
been popped fully outward with my hip). Thoughts on what might be causing
the incomplete outward motion?

-- Rocket Squirrel