This car was in an accident a month ago. After the wreck it sat for several weeks. The front drivers side headlight was totally demolished, radiator fans pushed in a little bit and one is cracked but they both still work. We replaced the radiator, put in headlight assembly. The battery was dead so we jumped it and drove it for a while to charge it, then it seemed fine. Then it started to have trouble when starting. It would have to be cranked a couple of times before it started until when it didn't the other day. So we jumped it and took it to Advanced Auto to test the 3 year old battery and it was fine but the guy said the alternator was going out. We bought a new one and installed it ourselves. To get the alternator out, you have to drop the oil filter so we changed the oil also. After hours of getting the new alternator back in and everything tightened up (with the help of YouTube)... the car now cranks .. only. It won't even start when we try to jump it. The starter doesn't tick or make noises so it seems fine. Just don't know if we hooked something back up wrong, if the belts are too tight or what the problem could be. We even cleaned the battery connectors. Please advise me what else I can check or need to think of. I am a single mom with a 17year old and just trying to do my best with little money.