Recent content by Seamus

  1. Seamus

    annoying noise

    I had a bad bearing in an alternator that sounded like that. Alternator worked just fine just noisy. I found it as stated above...with a stethoscope .
  2. Seamus

    2020 Yukon SLT - Maintenance Interval Question

    5K synthetic oil changes with a quality Wix filter from Napa. Transmission filter/fluid AC Delco every 40K differentials and transfer case every 30-40K Brake fluid evry 2 yrs This will keep you going far into the future. Oh I forgot to add, NO quick change oil places. Bulk oil, and too much...
  3. Seamus

    dmax 3.0 and the cold (-30F)

    where do you live with -30 degrees???
  4. Seamus

    10L80 - filled transmission at wrong temp???

    IDK if it was you maybe just bad luck on that one. My tech friend said they dont get crazy with the temp when they do a filter and fluid. Just start, warm and overflow then cap it off he said. He also said he changes his every 30-40K.
  5. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    I believe this came up with the new 2020 globl B architecture and these TSBs came out regarding. This one is for the pickups. The Police package does not have this feature. I had a 2021 suburban and have a 2021 Sierra which do time out. Which is why I looked into this. The newer trucks may not...
  6. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    https://gmauthority.com/blog/2021/09/heres-how-to-stop-a-gm-vehicle-from-shutting-off-engine-when-parked/ https://static.nhtsa.gov/odi/tsbs/2022/MC-10214233-9999.pdf
  7. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    It disables the time out feature GM added. It will run till you run out of fuel. You sign a waiver and acknowledge you assume liability of disabling it. You also pay the dealer to do it, its not free.
  8. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    When you first hit the starter button.......hold it after it starts till the message appears. It take a bit. Dont hit the button and come off, stay on the button till it appears. It does not keep it running, it just gets you a longer timeout. The real fix is a TSB at the dealer at your expense...
  9. Seamus

    Buying Used

    The most problematic??? Just not true. The lifter and main bearings in the 2021+ are the most problematic engine ever to come from GM hands down. Service departments and parts department cant keep up. They are packed with warranty. I have two friends who are GM techs and I ask them about...
  10. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    This happens all the time with service dogs, like your supposed to educate people who are ignorant to what they do and what they are for. Many seem to think they are only seeing eye dogs so how can you be without your seeing eye dog?? Just ignorance and opinionated idiots. Yes its truly a...
  11. Seamus

    10L80 - filled transmission at wrong temp???

    This is a very common known issue. They try to get it done with a flush but that only works for half the people. There is no flushing a TC. The issue is the torque converter. The aftermarket has improved TC's that are an upgrade and solution. I had a 2017 with the 8 speed and loved it. If I were...
  12. Seamus

    Research

    2018-2020 Escalade and Denali with 6.2 and 10 speed is the best you can do in this generation. Each other year has its own set of issues some of which can be avoided in the 2018-2020 6.2
  13. Seamus

    Service dog - how can I leave the engine running when I'm not in the car for longer than 20 minutes

    Holding the start button till you see the message is the best you can do, and it only gets you 30 minutes. We went cross country and I set the timer on my iPhone whenever we left the dog. It just not fair to the dog sometimes the environment he has to sit in, I do the same thing and leave him in...
  14. Seamus

    10L80 - filled transmission at wrong temp???

    My dealer said the exact same thing. Never had a bad 10 speed behind a gas motor. All they have ever done is fluid and filters. This is a very busy dealer doing tons of warranty work. They had over 7 new trucks in there with lifters and bottom ends just the day I was there. Warned me not to buy...
  15. Seamus

    10L80 - filled transmission at wrong temp???

    I was just at the dealer regarding a coolant leak. I happened to speak with the tech who did my friends 2020 10 speed. His is a 3.0 Duramax. His exact words: There are two gears in front of the pump that go bad, subsequently takes out the TC and contaminates the valve body. Said it sounds like...
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