Hello,
The truck should produce blue spark not orange/red. An orange/red spark is a weak spark and typically cannot start an engine.
You might have an issue with the ignition coil or the module.
The coil either might not be getting enough power input so the output is weak orange spark to the plugs. It could also have too much resistance in the system.
Check to see if you are getting 12V to the coil.
Another possibility could be a faulty ignition control module.
The ignition control module can be tested. You should be able to take it to your local parts store and they can do the testing for you.
https://www.2carpros.com/articles/how-to-test-an-ignition-system
https://www.2carpros.com/articles/how-to-use-a-voltmeter
I have attached diagrams for your reference.
Please let me know of any questions.
Thank you.
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Wednesday, August 11th, 2021 AT 10:49 PM