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  1. chrisbusnut

    Just took delivery of a 25 Yukon Denali Ultimate Duramax - First impressions

    I took delivery of a white frost metallic 2025 Yukon Denali Ultimate Duramax yesterday (trading in my 2024 Yukon Denali Duramax). This was an "in transit' unit to the largest GMC dealer in my area, and had not been pre-reserved/sold. Though I paid MSRP and got less than I would have liked for...
  2. chrisbusnut

    Is Cadillac dealer service any better than GMC?

    I've had about enough of sub-par service at local GMC and Chevy dealers. I've tried 3 GMC dealers and 2 Chevy dealers, and the service stinks. I feel like I am lied to, my concerns minimized, the communicationa are generally horrible and of course no loaner cars. I can go buy a Subaru and get...
  3. chrisbusnut

    Duramax rattle/vibration when accelerating, sounds like it's coming from exterior

    I've got a vibration that's associated with the engine that I only hear when accelerating at low speeds and certain low engine RPMs. It sounds like it's coming from the right side of the vehicle, either underneath or at the back of the engine compartment. Today I also started to hear it under...
  4. chrisbusnut

    2024 Duramax/Air suspension malfunction?

    I have a 2024 Yukon Denali with the Reserve Package, which includes air suspension. I've noticed that when I park overnight, the front air shocks seem to deflate, causing the vehicle to sit low in the front (but normal in the rear). I checked and do not have the setting engaged that lowers the...
  5. chrisbusnut

    Strange exhaust-like vibration noise traced by dealer to transfer case.?.

    So I have had this strange vibration/buzzing like noise coming from what sounds like the rear underside of the vehicle. It happens when accelerating from low speeds as the RPMs get to about 2200, usually shifting from 2nd to 3rd gear. The noise sounds like part of the exhaust vibrating on a...

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