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  1. C

    Transmission Temps??

    2018 Tahoe with the 6L80E. We just had it rebuilt and 1000 miles ago and so far everything is great. My concern in the operating temp. I installed the PPE thermostat bypass. The transmission seems to be running a little cooler around 195-200. I still think that is just too hot for a...
  2. C

    Transmission question.

    So we had the transmission rebuilt in our 2018 Tahoe 4x4 with the 6L80 A guy at work suggested that around town we drive with the tow haul mode on the keep line pressure up and keep from going into OD? Any thoughts or opinions?
  3. C

    Tranny issue??

    2018 Tahoe 5.3 Girlfriend was driving home from work and all of sudden she heard a clunk sound and the truck seemed to go into neutral. Revs up but no go. I got the help her and shut it off waiting a minute and started it and it moved a bit but as I sat there it would not move again. Shut it...
  4. C

    Transmission temp?

    Have a 2018 Tahoe I just change the transmission fluid and filter. Just the other day while pulling the boat which is only 18 foot older Bayliner the transmission temp got to 260. Did I do something wrong? Do I need to fill the pill or is the transmission toast?

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