Recent content by gemarsh

  1. gemarsh

    Newbie member

    Welcome.
  2. gemarsh

    24 Duramax Fuel System Failures

    Are you sure of that part number? It comes up as the same for the previous years...
  3. gemarsh

    24 Duramax Fuel System Failures

    No I have not. They (gm) did some "improvements" for the '24's. Maybe the 'improvements" weren't! Are you saying your Dad's dealer has 500 of them down, or gm customers, nationwide?
  4. gemarsh

    2500 ZR2 Duramax

    Nice, but what was the sticker price? Make sure to take your heart meds, before looking!
  5. gemarsh

    Need help on oil consumption issue

    You could also have them look at Bulletin 22-NA-027 and see if your camshaft cover serial number falls into a bad design. See attached bulletin. You could inspect it yourself.
  6. gemarsh

    Need help on oil consumption issue

    Welcome. Any chance you could use a different dealer? GMC, Chevy, Cadillac? It doesn't matter, they will all work on them.
  7. gemarsh

    Duramax running temp.

    They would be in front of the cooling stack. Sounds like you don't have them.
  8. gemarsh

    Duramax running temp.

    Were they closed?
  9. gemarsh

    Duramax running temp.

    Also, welcome!
  10. gemarsh

    Duramax running temp.

    These damn things. If the louvers are open you will see nice shiney bright aluminum fins of the radiator.
  11. gemarsh

    Duramax running temp.

    I sure would!
  12. gemarsh

    Duramax running temp.

    Look thru the grill, with hood closed.
  13. gemarsh

    Duramax running temp.

    I believe it a combination of things, temp and speed. But the ecm at the end of the day. There is a plastic motor mounted on the left radiator support, that opens and closes the louvers, sorry, shutters. If'n you have something like the launch, it has the ability to command them open and closed...
  14. gemarsh

    Duramax running temp.

    It's hard with a denali. AT4 ans SLT, no problem.
  15. gemarsh

    Duramax running temp.

    They are between the grill and radiator. They are black. They are plastic. They are a pain in the ass. They will malfunction.
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