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  1. Geotrash

    Oil pressure drop after addition of OEM Oil Cooler?

    One thing I haven't seen mentioned is the possibility that there is still some air trapped in the new cooler, which would make it harder to sustain pressure. Not sure what to do about it except to say keep driving it to see if over time any air bubbles will get pushed through the system.
  2. Geotrash

    2023 5.3 knock

    We'll definitely need a video to be able to help. You can upload it to YouTube, set permissions to public, and place the link here.
  3. Geotrash

    New 2007 Yukon XL Denali Owner looking for a service manual before tracking down oil leaks

    If you can swing the cost, a subscription to alldatadiy is terrific. It has been worth its weight in gold to me.
  4. Geotrash

    Chevrolet Suburban 3500 Questions

    I suspect it does because there is lots of slip in the shifts. It's built to be armored and carry around dignitaries who would likely be quite cross if a harsh shift caused them to spill their Scotch while fleeing enraged proletariat.
  5. Geotrash

    Chevrolet Suburban 3500 Questions

    Truth! Another way to describe what a Blackbear tune does is that it 'wakes up' the vehicle. Throttle response improves, shift points are tuned for better drivability (the factory tune prioritizes economy), shifts are quicker with less TCC slip, and they can also tune for premium fuel if you...
  6. Geotrash

    Yukon seat temp controls Solved

    Thanks for following up! Glad you got it solved inexpensively.
  7. Geotrash

    Chevrolet Suburban 3500 Questions

    Yup. I thought about that but I’m pretty happy with the power for my purposes - I have no problems keeping up with traffic while towing through the hills. If I make any engine changes in the next several years, it would likely be a cam since I have experience with that. I could see new wheels...
  8. Geotrash

    *SOLVED* 2018 Tahoe P135a help

    Thanks for following up with what worked!
  9. Geotrash

    6L80 P0700/P0711 2019 Suburban 5.3

    @NickTransmissions may be able to help here.
  10. Geotrash

    Swap in used engine and transmission from wreck help!

  11. Geotrash

    Class action

    Yikes! Wanna bet the lifter + spun main bearing issues on the '21+ generation is next? Double or nothing for DFM lifter issues after that?
  12. Geotrash

    Chevrolet Suburban 3500 Questions

    I know. Finding one of these unicorns in the LT trim is hard enough, but finding a low mileage creampuff is another thing altogether. I just got really, really lucky.
  13. Geotrash

    2007 Tahoe sudden P0300 P0154 P0352 P0354 P0356 P0358

    Never too late for a helpful answer! Thanks for posting.
  14. Geotrash

    Towing Heavy Transmission Temps

    These aren't our father's half-tons anymore. I drove an '81 GMC Sierra all through high school with a 250 straight 6 sporting 115 hp and rear drum brakes, yet my dad towed our camper with it before I got it. Today's half-tons are in a whole 'nuther class. Even before modifications we're talking...
  15. Geotrash

    Towing Heavy Transmission Temps

    Start a new thread, please.
  16. Geotrash

    New to Suburbans

    Welcome, Jim. A few things that might be helpful: The kind of adaptive cruise control you're after wasn't widely available until the latest generation of these (2021+). That said, automatic Emergency Braking (option code UHY) was available on the 2017+ Suburban with the LT level trim and higher...
  17. Geotrash

    Chevrolet Suburban 3500 Questions

    Drove the 3500 down to Mill Spring, NC for the Earl Scruggs Music Festival, about 800 miles round trip, hauling the camper. Such a pleasure to tow with this thing. My wife commented on the way home about how safe she feels in it because she knows it's so solid. Can't put a price on that. We...
  18. Geotrash

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Wow. That’s a spicy meatball!
  19. Geotrash

    Exploring 2500 Purchase Options (I'm Back?)

    It has the same frame as the 2014 suburban 2500. But it has the running gear and brakes of a 1-ton SRW pickup. Just towed our 7500 pound camper to Mill Spring, North Carolina this afternoon. So much more stable, secure and enjoyable than our 1500’s for towing. It was 96° outside and we had 5...
  20. Geotrash

    Chevrolet Suburban 3500 Questions

    100% agree with you. And unfortunately for most folks, they don't know this reality until years later, with the benefit of time and hindsight. Which, I believe, is the main reason why hybrids and battery-electric vehicle sales are now dropping. The jig is up. Maybe another way to think of the...
  21. Geotrash

    Bad Thermostats

    Agreed. The thermostat isn't affected by heat once it's opened. It's a simple device. One could argue that if the housing it sits in is made of plastic that excessive heat would affect that plastic over time, but that's all I can think of. I note that the GM Genuine replacement has a metal...
  22. Geotrash

    What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

    Nice to have somebody else doing the work once in a while, too!
  23. Geotrash

    2015 Yukon Denali Brake Grinding when starting

    My bet is on a loose caliper bracket. Hard to check the torque on the bolts that hold it on because of the other stuff in the way.
  24. Geotrash

    Chevrolet Suburban 3500 Questions

    I agree with you it's odd that a true hybrid system hasn't yet been offered. The only hypothesis I have is that GM's last hybrid experiment on these trucks didn't sell well - either because it was only a mild hybrid system that seemed barely worth the added complexity and cost, or because...
  25. Geotrash

    Replace 31 gallon tank with 39 gallon tank from 2500 series Suburban?

    Yessir. Found our unicorn in Maryland. F**k around and find out! :p Nah, no armor, but she’s an LT so she has butt warmers.

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