Hi. I have a 2007 Versa with 180,000 miles on it. In the last month, I had the exhaust pipe welded, new rear brakes put on and had a front end alignment! Starting last week, the starter has been a little "sluggish" starting the car. It takes a couple of cranks to turn the engine over. Starting the other day, every once in a while, I turn the key and get a click, nothing else. If I turn it off and try again, it starts right up. Is the starter shot? Is it possibly an electrical connection? I am going to try to fix this one myself, so if it is the starter, is that a tough one to change?