Lots of things. Fuel, timing belt broke, coil or coil pack, fuse, bad spark plugs, spark control or pick up in the distributor. What kind of car, how old, and how did it do when it wouldn't start the first time or what happened when it wouldn't? Many cars have the same thing happen so it helps to know what kind it is.
Jump it, it will either start or it wont
you can but it wont stay running if the battery is dead
You need to charge your battery or get a jump. Replace the battery or have it checked because it is dead.
bad battery or loose battery cable
First guess would be a starter motor Does it turn over?
Your battery is dead (even though you have some power), jump start it and when car is running test voltage to see if alternator needs to be replaced. Also ensure battery terminals are properly secure if you have no luck.
bad alternator, dead battery.
Jump start car and ensure alternator and battery are good.
If your 1996 Dodge Stratus wonÕt start you can try to jump start the car. There is no reset button like a computer. You can recharge your car battery with a jump start.
Check your battery connections. If they're tight and no corrosion is present, then your battery may be dead. Recharge or jump start the battery. Still clicking? Replace the starter.
Either a discharged battery or a corroded battery terminal. The battery could be discharged because the alternator isn't working.
Try getting a jump start. Could be a bad battery. If your battery is good, then you will need to get a new starter. It may be the Starter or the battery make be dead,