My passenger seat reclines and springs forward on its own. I replaced the striped white gear in the mechanism and I can now adjust the recline but it gets loose again. Seems like every time someone gets out or back in the seat will fall backwards or spring forward. Once seated, you can adjust it, but it doesn't seem to lock in place or remember were it was or something.
Is there another gear I need to replace? Something that locks the rails in place or something?
HELP!

