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2016 Tahoe Misifring
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Question
Peter Smith
I have a 2016 Tahoe with 110,000 miles that is misfiring on number 8. It has been doing this intermittently for the last 10 months. I have had it at the dealership 6 times for this problem. The first time, 10 months ago, they replaced the plugs and did a "engine and injector cleaning" which did not solve the problem. I can go weeks without it misfiring and then it will do it 2-3 drives in a row. Most of the time the code does not stick but rather just flashes. It is currently at the dealership and this time the code light was stuck on. My frustration at this point is that while the dealership has the data that it is misfiring, they keep telling me they cannot recreate it and so don't know what is causing it. They have had the car for two weeks at this point and the last four times it has been in for this they give up and tell me they can't figure out what is wrong. At about 30k miles it was randomly misfiring and they replaced all the injectors as a warranty issue. I am getting ready to go to a different mechanic/dealership but wanted to know if anyone had any insight for me. I have attached the mode 6 data from my code reader that triggered the engine light this time.
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