1. *Check the battery* - Make sure the battery has enough power to start the engine. Try jump-starting the car to see if that helps.
2. *Check the spark plug wires* - Make sure the spark plug wires are properly connected and not damaged. Replace the wires if necessary.
3. *Check the fuel system* - Make sure the fuel tank has gas in it and that the fuel system is working properly.
4. *Check the air filter* - Make sure the air filter is clean and not clogged. Replace the filter if necessary.
5. *Check the ignition system* - Make sure the ignition system is working properly. This includes the ignition coil, distributor, and spark plugs.
If you have checked all of these things and the car still doesn't start, you can then consider replacing the spark plugs.
