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Thread: GM 6.2

  1. #1
    Join Date
    Jun 2012
    Location
    Charlotte, NC
    Posts
    649

    Default GM 6.2

    Looking at a new AT4 with the 6.2 and 10sp trans. Anyone have any feedback with this combo, and do you know if you can delete the trans thermostat and disable AFM?

    Seems like you don’t hear much mulling over the 6.2.

    And please, save the Toyota talk.

  2. #2
    Join Date
    Apr 2002
    Location
    Lake Murray
    Posts
    228

    Default

    I bought a chevrolet trailboss with that combo. It does not have AFM but gets better fuel mileage than my last silverado with the 5.3.
    I really have enjoyed having the 6.2

  3. #3
    Join Date
    Nov 2008
    Posts
    2,423

    Default

    I am buying a new AT4 now. Looked at and researched the 5.3 and 6.2 related to the new DFM technology (Replaced AFM). I believe this will override DFM in the combo you are looking at.

    https://www.rangetechnology.com/prod...lt/parts/22451

    I ended up going with the 3.0L Duramax. Its sitting in a holding yard in W Columbia waiting to be delivered to the dealer I am purchasing from.

  4. #4
    Join Date
    Aug 2016
    Posts
    506

    Default

    I’m 2 years and 40,000 miles into mine. Have loved every second of it and not even a hint of trouble with the truck

  5. #5
    Join Date
    Dec 2010
    Posts
    22,235

    Default

    I have a GMC Yukon Denali w/ 6.2 , 85k miles and zero issues (knock on wood).
    I have been meaning to get KRT to delete the AFM

  6. #6
    Join Date
    Aug 2003
    Location
    goose creek
    Posts
    1,182

    Default

    20200228_211923.jpg
    My 2019 AT4 with the 5.3 and 8speed transmission. Does what I need it to do but it does have electrical gremlins from time to time. Navigation has gone out 3 times and had the nav chip replaced, brake sensor thingy had to be calibrated, rear camera service just came on tonight so I guess I'll make an appointment in the am to get it looked at. Other than those things, I really.enjoy the truck. It has every option available except.the sunroof.
    every expert was once a beginner

  7. #7
    Join Date
    Jan 2005
    Location
    FROG LEVEL
    Posts
    20,558

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    Ain't had 0 issues outa my 2019 Loaded. It has a longer box It will be up for sale as soon as I can locate another one just like it. Be next year 5.3/8-speed 21/mpg Love it 18,889/miles
    Last edited by DRDUCK; 06-21-2021 at 09:22 PM.
    Gettin old is for pussies! AND MY NEW TRUE people say like Capt. Tom >>>>>>>>>/
    "Wow, often imitated but never duplicated. No one can do it like the master. My hat is off to you DRDUCK!"

  8. #8
    Join Date
    Feb 2011
    Location
    bfe
    Posts
    2,123

    Default

    You can buy an AFM disabler for about $200 bucks. Plugs into the OBD-II port .

    I have one on my Yukon XL.

  9. #9
    Join Date
    Jan 2016
    Posts
    1,320

    Default

    Why would you buy one right now with the way prices are..... Just curious.... Figured waiting until this chip and shipping and everything else shortage is over and prices come down a little would be a little better time to buy?
    “Duck hunting gives a man a chance to see the loneliest places …blinds washed by a rolling surf, blue and gold autumn marshes, …a rice field in the rain, flooded pin-oak forests or any remote river delta. In duck hunting the scene is as important as the shooting.” ~ Erwin Bauer, The Duck Hunter’s Bible, 1965

  10. #10
    Join Date
    Jan 2010
    Location
    Pawleys Island
    Posts
    33,230

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    Quote Originally Posted by darealdeal View Post
    Why would you buy one right now with the way prices are..... Just curious.... Figured waiting until this chip and shipping and everything else shortage is over and prices come down a little would be a little better time to buy?
    He might not be able to wait until 2023.
    Yeah, but do you consider a dog to be a filthy animal? I wouldn't go so far as to call a dog filthy but they're definitely dirty. But, a dog's got personality. Personality goes a long way.


    You might take out a dozen before they drag you from your home and skull fuck you to death. Marsh Chicken 6/21/2013

  11. #11
    Join Date
    Nov 2010
    Posts
    3,214

    Default

    I had one with the 8 speed and loved it….now have the 3.5 eco with the 10 speed. Take it to 5 star tuning in flo they can disable and tune
    "And ignoring people on here....that's like being home schooled. Just say you're not ready to face life." Highstrung

  12. #12
    Join Date
    Jan 2016
    Posts
    1,320

    Default

    Quote Originally Posted by Saltydog235 View Post
    He might not be able to wait until 2023.
    That's a good point..
    “Duck hunting gives a man a chance to see the loneliest places …blinds washed by a rolling surf, blue and gold autumn marshes, …a rice field in the rain, flooded pin-oak forests or any remote river delta. In duck hunting the scene is as important as the shooting.” ~ Erwin Bauer, The Duck Hunter’s Bible, 1965

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