Hello, I have been having issues starting my car. It sounds like it is going to, just never catches. I replaced battery via warranty. It will start and run for a few days/weeks. Then it will stop working for a few days/weeks. I know I am overdue for an oil change, but not sure what else it could be. Like I said, it sounds like it is going to start, just never does. It started today for the first time in a few weeks. We tried starting fluid the other day, but it didnt work. Please help?