No spark to the coils and no start?

2005 CHEVROLET SILVERADO
200,000 MILES
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PILAS1982
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I was fixing my truck with a new A/C compressor and the truck started just fine before I changed it and now that I put the new A/C compressor on the truck doesn't even have a spark on the coils and it will not turn on at all. I'm trying to figure out what could be the problem.
Jun 4, 2023 at 8:21 AM
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STRAILER
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I would start at the crankshaft angle sensor, which is near the starter, they go out and cause this kind of issue. here is a video to show you how to change the sensor out or check the electrical connection:

https://youtu.be/-Ib3Lkde3Wo

This guide may help as well:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please go over these guides and get back to us.
Jun 5, 2023 at 10:40 AM