singlespeed

Yeah I don’t understand why a cam sensor, trigger wheel and a shim would fix a intermittent problem. Pretty ridiculous they can’t find the true problem.

That's a great question...

Bummer

100%

I agree, they are not even checking my exciter wheel until they fix the no start problem. The exciter wheel hasn't fixed anyone's no start truck that I know of. I tightened the fuse box bolts at 6k, have 11k on it and it hasn't done it again. So hopefully that fixed my truck. But who knows...

Yep, something needs happen to make them start giving a ****** about the problem... They have no fix for this and it's a super common problem... I don't understand why it so hard for them to fix this. Sound like they gave Gruggas a new truck, take his old truck apart and figure out WTF is going on.

Wow! What a bummer, not happy GM has to take the whole truck apart to get this fixed... I guess you just have to pray you have a good tech doing all the work... I wonder how much work it is to get the camshaft position sensor out?? I'm about to get the bore scope out and give it a try.

Bummer... It's crazy GM doesn't have a fix for this yet that dealers know about it. Please keep us updated.

Same thing on my new 2021 Sierra Elevation with the 3.0L duramax. One time at about 500 miles, the next time at 4,000. Both times I had my socket set with me. I removed the battery cable for a few minutes and it started right up after that. The last time at 4,000 miles I torqued the x50a fuse block down. Seemed like they were way loose. Now have about 6,000 miles on the truck and it hasn't happened again.