Just bought this jeep and have never worked on a jeep before. It wouldn't start one day after work. Had it hooked up with jumper cables to a friends car and still got nothing. Replaced the starter and now it just clicks. Im guessing its the starter clicking. No clue what to look at next. And before this issue, while driving the jeep it would just like start loosing power and id have to put it in neutral and rev the motor a little bit. Someone maybe suggested it was the ground? I have no idea. Suggestions?