Recent content by DenaliDrivinDad

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    2017 Denali fluttering when accelerating. VIDEO

    I gave up and got rid of mine after 1 year. The money and time isn't worth my sanity. No more GM vehicles for me. After 1 year it was literally rattling everywhere and the plastic creaked horribly. Not acceptable for a vehicle over $70,000. The ride grew rougher as time passed and it was very...
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    2017 Denali fluttering when accelerating. VIDEO

    It must have been wishful thinking on my part. Today we are at 82 degrees with a relative humidity of 62% and the noises are louder than ever. This powertrain hates humidity.
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    2017 Denali fluttering when accelerating. VIDEO

    So after picking the vehicle up yesterday, I noticed it was substantially quieter despite the GM field engineer claiming he only performed diagnostics. I've inquired to the dealership to attempt to determine if an ECU reflash or any type of adjustment was done. The vehicle still has a few of...
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    2017 Denali fluttering when accelerating. VIDEO

    I didn't have a CEL. I believe the misfire may have been detected when they were testing the vehicle during the visit when they replaced the fuel pump/pipe.
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    2017 Denali fluttering when accelerating. VIDEO

    I had mine in the shop twice since posting my video in this thread. The first time they detected a misfire and replaced the fuel feed pipe again along with the fuel pump. The noises did not go away. I opened a case with GMC and it went back to the shop again this time with the attention of a GM...
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    2017 Denali fluttering when accelerating. VIDEO

    Mine does this, and the range at which it rattles has grown. I also tested the flapper valve early on with no improvement. Checkout 27 seconds in this video. Shortly after this, the dealership claims they just replaced the VLOM, the fuel lines including the fuel feed pipe mentioned in...
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