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Engine will turn over but start and no spark?

Here are some potential reasons why your engine will turn over but not start, specifically with no spark:

1. Ignition System Issues:

- Check the spark plugs and spark plug wires for damage, wear, or loose connections. Replace any faulty components.

- Ensure the distributor (if applicable) is properly connected, has a good cap and rotor, and is functioning correctly.

- Test the ignition coil and replace it if faulty.

2. Distributor Cap and Rotor:

- If your vehicle has a distributor, check the cap and rotor for wear or damage. Replace them if necessary.

3. Ignition Module:

- The ignition module provides the necessary voltage for the spark plugs. Check the ignition module and replace it if faulty.

4. Crankshaft Position Sensor:

- A faulty crankshaft position sensor can prevent the engine from starting. Check and replace the sensor if needed.

5. Camshaft Position Sensor:

- A malfunctioning camshaft position sensor can also cause starting issues. Inspect the sensor and replace it if faulty.

6. Starter Solenoid:

- A faulty starter solenoid might not engage the starter properly. Check the solenoid and replace it if needed.

7. Battery and Cables:

- Ensure your vehicle battery has enough charge and that the battery cables are properly connected and in good condition. A weak battery or loose cables can prevent a proper connection between the battery and the starter.

8. Fuel Supply:

- Verify that the fuel supply is consistent. Check for any issues in the fuel lines or fuel filter.

If you're not comfortable performing these checks and repairs, it's recommended to seek assistance from a qualified mechanic to diagnose and fix the issue.