I have a 1998 4 door tahoe with a front passenger door problem. The door won't open from the inside. I feel like a butler having to get out, go to the outside of the passenger door and open the door from the outside. When I pull on the inside handle, it feels firm and I can hear some scraping inside but it isn't acuating the latch. How do I get the door handle assembly off!! Thanks for any help.