new member and proud owner of a Lincoln Mark VI and a Lincoln Continental

hello there I have owned a Lincoln Mark VI for about a year now and got with 69,000 miles on it and I was wondering if any one had any information on where to get diagnostics for it and also some technical information about it like what to look for or any problems that came along with the car of this year make and model. I also just bout a 96 Lincoln continental I know its not the Mark series but it definitely works as a good winter car with the front wheel drive. Is there any problems that I can look for in this car? thanks for the feed back it is well appreciated...