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  1. 0

    6l80 stuck in 1st and dash cluster glitching out

    So I checked all the ground I could find under the chassis and this are good, found a couple in the dash that I could access with tearing the dash apart and those are good. As I just went out to start it to go home for lunch it now won’t start, all lights are on the dash, battery has 12.2v but...
  2. 0

    6l80 stuck in 1st and dash cluster glitching out

    Battery is only 2/3 months old and I have no clue lol I’m gonna mess with it tomorrow morning on my day off
  3. 0

    6l80 stuck in 1st and dash cluster glitching out

    Cables are good cause I just replaced the battery about a month ago and can rule the scanner out cause I’m using a snap on Zeus
  4. 0

    6l80 stuck in 1st and dash cluster glitching out

    So I have a ‘07 Yukon Denali 6.2/6l80/awd with approximately 187k and I’ve recently developed an issue that’s a weird one. Couple weeks ago on my way to work the transmission defaulted to 1st gear (only 2.5 miles from my work), let it sit all day and on my way home it was doing the same thing...

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