My gear selector on my 02 Denali is loose. Sometimes when I put it in park, I have to push it back to its original position manually in order to be able to take the key out. I have to wait until the "P" is highlighted. I know there is a fix for anything, but is this someone of an easy fix? I haven't taken it apart or anything but I would guess there is some time of spring or mechanism in it that has gone bad. Thanks in advance.