Hi I have a 2002 2-Dr Chevrolet Blazer. I take excellent care of it and it is in perfect condition. It's enough to be back on the show-room floor. I'm starting to have a problem with my power door locks (I do not have keyless entry). When i go to unlock my doors from the driver side, my driver side door will unlock but the passenger door will not. I have to press the button very hard before I can get the door to open. They lock perfectly though. When I try to open the doors from the passenger door, I have no problems...Any ideas?!? Thanks!