I'm having an issue with the middle catch/hinge on my drivers door. I'm not sure what the right term for it is, it has detents in it to keep the door in a fixed position. It has started making a knock when it gets halfway. I tried lithium grease, WD-40, no change to it. It looks like you have to pull the inner door panel off to really get to the part. Any advice on a fix? Thanks in advance if you can offer any advice.