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Recent content by jonny_77

  1. J

    GM Extended Warranty

    I had 2k miles on my 3ish yr old. If it's still under warranty I think my Cadillac plan was like $3k for 8 years of coverage. After a recent transmission repair - it's expensive but insurance against a bad thing happening.
  2. J

    Whistle sound coming from the Throttle body?

    Appreciate the findings and resolution
  3. J

    Looking for Opinions on Dealership Diagnosis

    Thread 'Acceleration Buzzing Sound (CT4-V Blackwing)' Acceleration Buzzing Sound (CT4-V Blackwing) I had a significant rattle (I called it a buzzing sound) that I could attenuate by holding firmly on the shifter on my 2022 BW with 5k mi on it. The full thread is posted above (just searched...
  4. J

    Acceleration Buzzing Sound (CT4-V Blackwing)

    I'm not an expert but that is the diagnosis provided and the fix (at least for the first 100 mi) seems to have remedied the issue.
  5. J

    Acceleration Buzzing Sound (CT4-V Blackwing)

    The Cadillac service center in Hamilton, MT had my Blackwing from Tuesday morning through Friday morning and returned my vehicle with a replaced throw out bearing after confirmation that the original had failed. The bearing and all of the work on the transmission to get to it was performed under...
  6. J

    Acceleration Buzzing Sound (CT4-V Blackwing)

    The prognosis given back by the Cadillac service shop is a defective throw out bearing. The repair is scheduled for late September. I will keep the forum posted.
  7. J

    CT4-V 4BW winter tires?

    Looki Looking into this now - Blizzak WS90s are a great option. Can I get away with four 18" x 9" wheels for the 255/35/18 tires?
  8. J

    Acceleration Buzzing Sound (CT4-V Blackwing)

    Not normal. It was the first thing I noticed on my 2022 CT4-V Blackwing 6MT. I purchased the vehicle with 1900ish original miles on 5/27/25. I hear the buzzing in all gears but is especially prominent in 3rd and 4th at highway speed. I can attenuate the noise by grabbing (hard) the shifter. I...
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