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  1. gemarsh

    Duramax running temp.

    It's hard with a denali. AT4 ans SLT, no problem.
  2. 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.
  3. gemarsh

    Duramax running temp.

    Sorry, that's what I call them. gm calls it the Active Areo Shutter Technology. They are in the OM...
  4. gemarsh

    Duramax running temp.

    I have heard this before, but the guy lost his engine, towing. Dealer couldn't find the problem. I asked him if'n they looked at the damn louvers, to see if they opened. He responded back a few days later that was the issue and couldn't believe they didn't check them, being at the dealer...
  5. gemarsh

    Duramax running temp.

    Are the louvers opening?
  6. gemarsh

    New guy just joined

    Welcome. Post pics when you get it home!
  7. gemarsh

    Turbo Failure

    Wow, that is low mileage on a turbo.
  8. gemarsh

    Fuel Filter housing

    Yes. I felt the same way. Make sure you lube the o-ring good with fuel and use a six-sided socket. I bought 3 housings on Amazon from iJFJ for my trucks. No issues with them. I agree with the ease with filter replacement, but was more impressed with how easily it was to prime.
  9. gemarsh

    GM to stop sharing your data...

    https://www.gm-trucks.com/in-stunning-reversal-gm-stops-sharing-vehicle-driving-data-with-brokers/?fbclid=IwAR2YNtaNjYrsaRb1jlj9tcAzx1qRXhBVP56nb4qzek2ROChWOoT3TT07o9g_aem_AV-G2iwRIpM4bSoY7PV7imHataPYKrbSjllL95_LEtieKlu-vRNt6Fcys8ishNRzguU
  10. gemarsh

    Seeking help on a couple of issues.

    The temp sensor in the head is the same part number as the LM2. I'm not seeing that the LZ0 is using the rad temp sensor as the LM2, or it's too new and not listed yet.
  11. gemarsh

    Seeking help on a couple of issues.

    Welcome. I think the best bet now for us lowly owners is the upfitter guide. There is Alldata, but it is also priced out of our league. Never gave much thought to the thread of the oil pressure sensor. I would have guessed they were npt. But after looking at them, I'll make a wag that it is...
  12. gemarsh

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

    Haven't put my eyes on this part. Would it have been possible to repair on the truck?
  13. gemarsh

    Mystery Turbo Coolant Leak

    Thanks for posting the information!
  14. gemarsh

    Not feeling good about the PF66 filter

    That is good! Usually, diesels soot out their oil before the oil breaks down.
  15. gemarsh

    Maps Display

    I would guess it was coming from your phone mirroring. Was it following your travel? Or did you have to interact with the screen?
  16. gemarsh

    3.0L Overall

    Nice to get that plug sealed, proactively
  17. gemarsh

    Newby Looking to program a new key fob

    I was wondering about that with the new global b system. Not saying it can't be done, but gm won't tell a person how in the manual. I downloaded the manual for the '22 and the process is not there. Saying to go to dealer and make them money. But this screenshot is where your "pocket" should...
  18. gemarsh

    What are your Diesel fuel prices?

    😭
  19. gemarsh

    Newby Looking to program a new key fob

    Found it. Warning. This is for the pre-refresh...
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