Strong spark, Truck turns over but will not start?

Hello,

If you are getting spark and fuel but no start, you might have an issue with compression or a faulty crank sensor.
Get your engine compression checked. It can be done using compression testing tool.
Typically you borrow these tools from your local auto parts store.

The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kPa (100 PSI).

Here are few helpful articles on how to check compression and typical symptoms of having low compression:

https://www.2carpros.com/articles/how-to-test-engine-compression
https://www.2carpros.com/articles/the-reasons-for-low-compression
https://www.2carpros.com/articles/symptoms-of-low-compression

Please let me know if you have any questions.

Thank you.