I have a 86 bronco 2, and im having a few problems with it. Well it doesnt like to shift gears, its a automatic. But when i first start driving it it wont shift i have to put it in 1, then, 2, then D. And sometimes when i put it in park it doesnt want to stay in park. The shifter will say p but it wil just start to roll. And then sometimes it just wont crank, but ussally ill take it out of gear and put it back in and it will turn over then. any ideas on what the problems are?