Recent content by gemarsh

  1. gemarsh

    Duramax running temp.

    https://www.alldata.com/us/en
  2. gemarsh

    Sag towing 6000 lb rv help!

    Welcome.
  3. gemarsh

    Duramax running temp.

    I bought the launch on Amazon. https://www.amazon.com/gp/aw/d/B0B4MJ5NK6?psc=1&ref=ppx_pop_mob_b_asin_title There isn't much info on the shutters in the OM. With a bidirectional scanner, like the launch, you can command the shutters open and closed. If the fuse is blown or if the ecu...
  4. gemarsh

    Engine Cooling Fan Runs @ High Speed on Cold Start-up

    Is the cel illuminated?
  5. gemarsh

    Towing question

    Welcome. Love the bumper of lights!
  6. gemarsh

    Love this Truck

    That was a nice added bonus!
  7. gemarsh

    22" wheels on my 2020 1500 Denali 3.0 Liter Duramax short box

    Not off enough of to worry about. The dealer can only program for what size tire/rim combos that are available from gm for that model.
  8. gemarsh

    Love this Truck

    Welcome. Did you add the topper?
  9. gemarsh

    New to forum…21 Sierra, Coolant Control Valve P1098 fixed

    Yeah, I have read that also. I cleared the code and all was well for a few days and it popped the cel and fans ran full out again. But it was enough time to have my dealer get a valve in. Told my advisor what was up when it first appeared and he took my word for it. Brought it in with the code...
  10. gemarsh

    New to forum…21 Sierra, Coolant Control Valve P1098 fixed

    Just had the ccv replaced the week before Christmas at 56k miles on the '21. Dropped it off Friday and had it back Monday afternoon.
  11. gemarsh

    New user

    Welcome. Post a picture of your ride. And details!
  12. gemarsh

    Thats Funny

  13. gemarsh

    275/65/20 Falken Wildpeak A/T4W Tires Ordered

    Ain't nothing wrong with the Wildpeaks. Enjoy the quietness.
  14. gemarsh

    Thats Funny

  15. gemarsh

    Thats Funny

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