[2000CAYukon]

Maybe the problem is with your coil and not the ignition module. I had a MSD coil in my K1500 and the truck died one day. The coil was less than a year old so I figured it was the module. Turned out it was the MSD coil. Put the stock one back in and it has been fine ever since.

Might not hurt to check the coil.

//2000CAYukon