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Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
I am just seeing if you still need assistance with this problem? The reason I ask is because I see that your question has not been answered sooner and I wanted to make sure if you still needed help.In some cases a question may sit due to several different reasons. My objective that I wish is to make sure that if you still need help that I can at the very least reach out to you and attempt to help you.
At this time please feel free when you are ready to reply back to me and ask to continue working with me, another expert or if you no longer need help please just let me know exactly what you wish to do.
If you need any further assistance you can reply back at any time for my help.I'd be happy to answer any other questions you have even if not related.
Once it stalls it cannot be restarted right away, correct?
If so have you then checked spark, compression (hot), and fuel pressure?
So it does not stall?
Have you checked for misfires (timing light), fuel pressure during the problem and hot and cold compression?
What exactly has been tested/check and replaced already?
Are you trying to fix this yourself or just have an understanding of the problem? I have a feeling since it is under warranty that you are not trying to fix it. The problem is that while there are always things online that can be found it doesn't mean the solution is always the same and testing must be done to correctly diagnose the problem, this does unfortunately mean the only way to find the problem is with testing. With the scan tool connected the dealer can evaluate things that without are not as easy and or cannot be done esp all in one location, these newer engines really require this for proper diagnosis with certain problems esp when it is not the basics. They would be going in and viewing many many different sensors and seeing how the engine is responding, they can also run tests and evaluate via the tool.
Unfortunately that is what I was explaining, which is that there is no 100% way to know what the problem is without proper testing and diagnosis and thus why I started off asking about testing things for me as that is the only way. I can assure you that it only seems common because a few others have wrote about it online, if it was that common there would be an tsb and or would be able to have already been fixed by now.