Hello, I have a 99 500 magnum that I bought new. Problem is will the 4 wheel drive work if my battery is DEAD as the 4wd is in and out on working. I have to start it with the pull start 2 pulls and its up and running. I did have a new reverse switch put on about 7 years ago. So is the Battery or the switch the problem. I do plan on a new Battery which will make 3 so No complaints.