One is a Hoover upright that may just need a belt or something, but I can't figure out how to open it and look.
The other is a Dirt Devil hand held that I opened to clear a nasty jam. When I reassembled the case the motor wouldn't run. Took it back apart and the motor ran fine. Screwed it all together, dead again.
Since I live with the Shopasaurus we have already replaced both items, but I hate to consign them to the landfill if they can be fixed and somebody can get use out of them.