have power to ignition coils no spark to plugs
If you have power to the coil and its not going to the plug then the coil(s) are defective if it is coming out of the coil then I would look at the wires going to the plug...easy change out.. https://www.youtube.com/watch?v=jjFQyB6woZ8
Also, the coils need power to them, if joemom doesn't get you anywhere, need to track further back into the system.
Very possible the ignition module I agree, and or the pole piece, check to see if the two wires are still connected by pulling on them slightly
Looking for a Used Sierra 1500 in your area?
CarGurus has 67,170 nationwide Sierra 1500 listings starting at $2,700.
Search GMC Sierra 1500 Questions
GMC Sierra 1500 Experts
Related Models For Sale
Used Cars For Sale