Recent content by Sean Michael

  1. Sean Michael

    Is New Engine Break In Procedure Still Necessary?

    I was wondering if the redline reduction was visual only in the guage cluster or actually enforced by the ECU, I didn't test the theory because I was following break-in procedure sincerely and kept it under 4,500 RPM anyways. In your experience with your Corvettes, did you feel any difference...
  2. Sean Michael

    Is New Engine Break In Procedure Still Necessary?

    I bought a new Cadillac CT5-V and the digital guage cluster shows a reduced redline for the first 500 miles, there's video on the Cadillac forum of someone hitting 500 miles on the odometer when the redline immediately jumps up to normal. So GM can and does implement some programed break-in...
  3. Sean Michael

    I had the GM Performance Exhaust installed

    I could've kept my Tahoe and bought the CT5-V as a second car for less than $150K!
  4. Sean Michael

    I had the GM Performance Exhaust installed

    I enjoyed my 6.2L with the performance exhaust that I made this post about. However, the power it provided was a gateway drug so to speak, I went for even more performance and traded it on a 2025 Cadillac CT5-V last week. I'll miss the 6.2L rumble and copius interior space, but the V Series...
  5. Sean Michael

    New 2024 Yukon XL Denali

    I did it, traded my 6.2L Tahoe on a 2025 Cadillac CT5-V yesterday. Had it delivered with 4 miles on the odometer and it's even the same color as my Tahoe, GM's Radiant Red. Completely different direction going from a full-size SUV to a performance sedan, but I had been yearning to get back into...
  6. Sean Michael

    New 2024 Yukon XL Denali

    I'm bummed to be leaving it behind, and knowing my luck GM and NHTSA will go public with a bulletproof plan to fix the issue a day after I trade, but at this point I've already got a trade-in offer on paper, negotiated the price on a different new vehicle, and now I'm just waiting for it to be...
  7. Sean Michael

    New 2024 Yukon XL Denali

    Being paranoid, having to baby these vehicles, adding aftermarket disablers, following specific startup procedures, using L9 all the time and whatnot to keep these temperamental 6.2L engines from grenading is ridiculous. I've come to the realization this isn't what ownership of a new $80K+...
  8. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    And to be specific, it was assembled late August 2024, so it hadn't sat on the lot, I bought it right off the transport truck.
  9. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    Approximately 5,000 miles with one oil change at 3,000.
  10. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    @blanchard7684 2024 Tahoe RST 6.2L purchased new last September.
  11. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    I'm trying not to be neurotic about it, but the fuel pump control module leaving me stranded wasn't a rare fluke, it's a common issue and there's even a thread on this forum about buying and keeping a spare one in the vehicle. I'm not too concerned about the lifter issues everyone talks about...
  12. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    I really enjoy my 6.2L RST, but after the FPCM left me stranded on the 6th day of ownership at only 320 miles, and now the reports of bearing failures, I'm beginning to lose confidence in the vehicle. I started kicking tires on other vehicles just to see what else I would drive if not a Tahoe...
  13. Sean Michael

    NHTSA opens preliminary probe into more than 870,000 GM vehicles

    I'm not experienced with engine building, but I watched that video when it came out and a lot of commenters on the video were saying it apeared to have already been rebuilt because of the presence of a heat tab, it had too much carbon build-up to have only been a 4-mile engine, and the fact...
  14. Sean Michael

    Sunroof Rattle

    Did you ever resolve this? I'm having the exact same issue.
  15. Sean Michael

    Passenger side of sunroof rattles

    The passenger side of the sunroof on my 2024 Tahoe rattles, especially when it's cold. I have narrowed it down to the sunroof because the rattle sound goes away when I reach up and apply pressure on it while driving. I can also limited the rattle by using the "tilt" setting that slightly opens...
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