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  1. donjetman

    07 denali transfer case fluid question

    Our awd 07 Yukon Denali has a BW4485 transfer case (rpo code NR3), and takes/holds 3 pints atf.
  2. donjetman

    open or limited slip

    our awd 07 Yukon Denali has a BW4485 transfer case (rpo code NR3), and takes/holds 3 pints atf.
  3. donjetman

    open or limited slip

    Yep, it covers all the bases, locker and limited slip.
  4. donjetman

    open or limited slip

    My Denali has the G80 differential and I have been running Amsoil SG 75w-90 for 5 yrs and 60k+ miles. No issues. :waytogo:
  5. donjetman

    shift cable problems

    If no picture, it didn't happen :)
  6. donjetman

    PCV, or not to PCV?

    I have the improved GM valve cover called for in the TSB, and a cheap chicom catch can on our 07 Denali 6.2 for 5 yrs. No regrets. It catches about 2 oz per 5000 miles.
  7. donjetman

    2013 Yukon Xl

    I never heard of it either
  8. donjetman

    2013 Yukon Xl

    Sounds totally different than a lifter
  9. donjetman

    What would make cruise control turn off?

    brake light switch at the pedal I had to replace it to get the cruise control to work.
  10. donjetman

    Front Driveshaft bolt size

    11 mm is the "hex head" size, it is not the size of the bolt. If I needed them I'd check with the dealer, drive shaft shop, or junk yard.
  11. donjetman

    VVT how it works & Limiter install

    For folks that may want to limit a little or a lot their VVT movement:
  12. donjetman

    For You E85 Lovers

    I know what it does to the oil of a drag race engine if not changed often. Here's what it does for the short trippers:
  13. donjetman

    P0300 + P0204 Misfire no spark on passenger side 8-6-4-2

    The whole intake manifold and intake runners get dirty especially if you don't run a catch can.
  14. donjetman

    Low oil pressure at idle, pulling my hair out, looking for any and all options.

    Put "plugs" in the AFM towers.
  15. donjetman

    P0300 + P0204 Misfire no spark on passenger side 8-6-4-2

    whenever I clean the throttle body on all of our cars, I do it by hand with a rag soaked in mineral spirits. I do a spray cleaning of the MAF sensor the CRC MAF cleaning aerosol at the same time. I never need to do a relearn procedure.
  16. donjetman

    Does the 6.2L have AFM?

    Here a guide for all LS engines: https://www.onallcylinders.com/2019/10/03/the-definitive-guide-to-ls-engine-specs-and-ls-engine-upgrades/
  17. donjetman

    2010 Denali ticking noise

    E85 (ethanol) like methanol, attracts water, and some of the ethanol (like unleaded) ends up in the oil in the crankcase and depletes the additve package. And inevitably some of the gunk that is set free also ends up in the oil. These days I like to fillup with Chevron occasionally or/and use...
  18. donjetman

    2013 Z71 Suburban additional transmission cooler

    My 190k mile 2007 6L80 temp always run 80 to 100*f above outside air temp (not towing) in the summer. So 105* day like yesterday it would run 185* to 205*. This isn't too hot for Dexron6. I do regular used atf analysis and have determined a full Dex6 atf flush with filter change is good for the...
  19. donjetman

    2010 Denali ticking noise

    E85 cleans well, but if you run e85 often I would plan your oil/filter change intervals more often.
  20. donjetman

    2009 Tahoe 6.2L L92

    The 6.2L L92 was in 07 & 08, the 6.2L L9H was in 09-13. Here is a guide for all LS engines: https://www.onallcylinders.com/2019/10/03/the-definitive-guide-to-ls-engine-specs-and-ls-engine-upgrades/
  21. donjetman

    New brake rotors, pads & steel braided lines - pedal needs tapping to be firm...

    Everytime it rains around here (rarely) I take all of our vehiles out and slam the brakes a few times to pump some fluid the the abs unit.
  22. donjetman

    Weird Transmission Issues

    07-10 Yukons & Tahoes came from the factory with defective driver side valve covers that cause the engine to burn/consume oil. The fix is a new improved valve cover, GM P/N 12570427 for the 07-08 engines. Here's a link the the GM TSB Technical Service Bulletin...
  23. donjetman

    Fuel injector harness/spark plug burned.. potential causes?

    I'd be shopping the wreaking yards or ebay for the parts you want.
  24. donjetman

    This ACdelco Engine air filter with 27,500 miles, 4 years old..

    This thread reminded me to check my 2 yr old 20k mile air filter, Fram Ultra 8755A, advertized as being good for 4 yrs and/or 40k miles. It looked good so I put it back in place. I did clean the MAF sensor and throttle body since its been 4 yrs & 45k miles. I was reminded to check the 3+ yr old...
  25. donjetman

    P0326 and P0446 codes on 2007 Tahoe LT

    Knock sensors are bolted on each side of the block. and Vapor Canister Vent Valve on my Denali w/6.2 it was GM 23481275
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