I have found, after all that i have read, nothing is a solid repair for this. So with that being said, I will give you My technique (and so far it has worked). My 04 colorado acts up occasionally. I have found if the ignition switch is just turned S-l-O-W-L-Y, most times it will fire. Sometimes not. If not,dont panic. Back the key off and try it again! Low and slow does it for me….