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  1. Geotrash

    2012 Tahoe 127k can now hear a gear turning sound @ 25-40mph - SOLVED

    I would also be curious there is any difference between 2wd and 4wd. But hub bearing is a good bet. I had to replace one on my 2012 at around 135K. You might also check to see if the shop has a set of "chassis ears". They mount under the vehicle during a test drive to pinpoint sounds like this...
  2. Geotrash

    Arnott Warranty BE ADVISED - BE ADVISED

    In my opinion, it’s pretty simple… Don’t offer a lifetime warranty if you don’t intend to keep it.
  3. Geotrash

    Arnott Warranty BE ADVISED - BE ADVISED

    Bait & switch.
  4. Geotrash

    2008 Yuke - AC blows hot on driver side, cold on passenger side - Dealership says problem cannot be solved?

    We're going to keep throwing stones at the wall until you answer two key questions: 1/ Do you have a Tech 2 scanner or equivalent that will show you the commanded vs actual position of the actuator and blend door? If so, what does it show? 2/ Is this an automatic climate control or manual HVAC...
  5. Geotrash

    Attempted a short economy run (5.3 vortec)

    Oil pressure gauge behavior is normal. A/C whine is not. The A/C clutch bearing turns when the clutch is disengaged and compressor shaft isn’t turning. But when the clutch engages, the shaft turns and a different set of bearings turns with it, along with the scroll inside the compressor. My...
  6. Geotrash

    Post New Transmission: Infamous Clunks

    This matches what I experience with my '07 and '12 XL Denali's. The shift points and patterns are noticeably different between the two. It's especially noticeable in tow/haul mode. The '07 is much more prone to downshifting earlier when slowing down and revs higher before upshifting. Side note...
  7. Geotrash

    20 Yukon Taillight 1 LED out

    You might want to check with a dealer. They had a "special service" campaign for 2015-16 models, IIRC, that they may have expanded to later models. It's worth asking anyway.
  8. Geotrash

    A/C Belt & Serpentine belt

    Yessir. For clarity for the OP, the '15 Yukon uses a stretch belt on the A/C compressor, and a tensioner pulley + an idler pulley on the main serpentine belt.
  9. Geotrash

    Completely broken driver door handle

    Awesome! And it looks like Dorman 80994 is the black handle.
  10. Geotrash

    Update on Idle dipping and fluctuation problem

    Wow. Super helpful, thank you!
  11. Geotrash

    21’ Tahoe Tranny Fluid Flush vs Tranny fluid change and change filter

    "Flush" is a bit of a misnomer. It's the same process for all modern transmissions at most quicklube shops and dealers. They disconnect the cooler lines, connect them to a fluid exchange machine, start the engine and let the transmission's pump circulate the fluid through the machine. Sometimes...
  12. Geotrash

    2017-2019 Yukon XL Denali questions

    This is a bummer and a major downside to the K2xx generation rigs, in my view. I have 247K on the original front mag ride shocks on my '07 and they still ride like new.
  13. Geotrash

    Post New Transmission: Infamous Clunks

    I do. That’s why I asked her for a little more clarification. It’s super common on these to have driveline clunks that show up as the transmission is downshifting, or upshifting. Most often it’s motor mounts, front differential mounts, transfer case, or driveshaft yokes. If the transmission is...
  14. Geotrash

    Is This Camshaft Reusable? Or Too Pitted?

    I used permatex gasket remover with a plastic scraper on the gasket surfaces and engine degreaser on everything else. I used to have a parts washer in my old house, and that was the bomb. If you're planning to send the heads out for checking and a valve job, the machine shop will clean them up...
  15. Geotrash

    6.6 Gas L8T Engine Swap in 2015 Suburban

    Being happy with a choice that works for you is what it's all about, and a 6.6L Suburban is probably not the right choice for a big commute every day. And I totally get feeling resentment toward a vehicle that let you down so soon into your ownership of it. But you taught us all how to do...
  16. Geotrash

    Rear hub question.

    Nope, you're 100% correct. And getting those C-clips off the other end of the axles can be a bear. This is a job I will happily leave to a trained pro. But I agree with Wes, unless it's making noise or leaking, send it!
  17. Geotrash

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    That's what I have always done and it works well. Spent several winters in Wyoming, Montana and North Dakota chasing drilling rigs and a block heater always did me right when I couldn't leave the engine running all night. One other little tidbit: get yourself a cord designed for cold weather. I...
  18. Geotrash

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    An oil pan heater is only half of the solution and creates other problems. As soon as that heated oil starts to circulate, it will be instantly cooled to the temp of the block anyway. Worse, heating just the oil creates a warm condensing environment inside the engine where the moisture in the...
  19. Geotrash

    Post New Transmission: Infamous Clunks

    Clunks...you mean as the transmission is downshifting...like when you approach a stop sign? If so, my guess you would benefit from a proper transmission tune since it seems your previous tune was wiped out by the shop...if I'm understanding that part right.
  20. Geotrash

    Is This Camshaft Reusable? Or Too Pitted?

    This is the proper tool. Requires removing the starter to install it, which isn't as big a deal as it sounds. https://www.summitracing.com/parts/sum-900332-1 But I went another way when I did mine. I used the ARP harmonic balancer bolt because 1/ it's reusable, and 2/ it can be torqued to...
  21. Geotrash

    Engine Cooling Fan

    And...you can buy both fans with the whole assembly for less than just one fan and motor. That way you can keep your good one as a spare. I've had good luck with TYC parts, for what it's worth. https://www.rockauto.com/en/moreinfo.php?pk=10173016&cc=3434402&pt=2181&jsn=500
  22. Geotrash

    Engine Cooling Fan

    Don't know what the difference is, if any. Could be their pictures are off though, so I wouldn't buy based on appearance online. You can get a better price on the correct part through rock auto: https://www.rockauto.com/en/moreinfo.php?pk=14079457&cc=3434402&pt=2164&jsn=494
  23. Geotrash

    AFM/DFM Delete Kits

    Not a direct answer to your question but it might be helpful to some. HP Tuners says that they can now access the E90 ECU on these but it requires sending it to them to be unlocked before tuning ($300). After that it requires 8 credits to perform your tune at home (an additional $400). All of...
  24. Geotrash

    2014 Suburban - Weight Distro Hitch/Suspension question

    It's been a few months...where did you end up with this? Sorry I missed it on the first go-around.
  25. Geotrash

    Does a 2024 Z51 with 6.2 require premium fuel?

    This. Need the data on how much the ECU is compensating for knock to speak rationally on any of this. But what we DO know is that running regular unleaded gas in a 6.2L meaningfully raises the risk of eventual engine damage - especially under high power.

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