I've got a problem. My passenger door lock sticks when I try to unlock the door. It happens most often when I lock and unlock the door from the outside with the key. The problem lies in the front right door lock. When I go to unlock the door, the lock mechanism sticks a little before releasing. Sometimes it will let go, but most often it will not. I have already replaced the RH front lock mechanism and the RH door lock rod. I'm wondering if anyone has had this problem before and if someone has a possible solution. I'm hoping to fix it for good and never have to get into that door again.