You're going to have remove the steel plate back by your heels and the floor plate to see what's going on. Then maybe you can find what's jingling. You will also be able to see the switches that turn on the lift, tilt, side shifter. The lift switch may have a problem or needs adjustment. The filter wouldn't cause that problem.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.