Truck ran flawlessly until this "no start" issue. Intermittent no start increased in its frequency until it wouldn't. Had it towed to dealership. They could not recreate problem. I raised hell, and started reading that others had similar problem. A TSB came out that advised tech to install .5 shim. That seemed to have worked until recently late May 2022, have appt. with dealership again, and truck has started as expected. They didn't do a scan the next day to pull a code since one might have shown up at that point. Most likely nothing is there now. The truck has been driven an additional 10K miles since initial problem and now shows 21,400 miles. I can't have this problem every 10K, since soon this will be coming out of my pocket. and it needs a fix as others are having the same problem. GM has had well over a year to sort this out so I'm hoping if it isn't the cam sensor it's something else fairly straightforward.

Soon after purchasing this vehicle I experienced a long crank no start event with the vehicle this was only a couple hundred to a few hundred miles after purchase and has been a continuing problem since dealership replaced starter problem continued no explanation dealer verified my complaint. Problem is not consistent problem is intermittent and can happen randomly at any time any mileage. Once the long crank no start event occurs you must wait for starter to time out and then push start button and vehicle starts. as of yet I have not had a complete long crank no start in multiple attempts to stop vehicle example initial starting of the vehicle long crank no start starter time out start again vehicles Starts