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    Found the Yukon's electrical glitch after wife backed the truck into a wall

    Excuse my rambling.. this is two years I've suffered here.. I know the truck has a backup camera and radar, she flys a multimillion $ B737 for work, I have no idea why she didn't look at the camera or behind her but... whatever, right? It was the tail light harness, a connector was burned up...
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    Tuning other than black bear.

    I have a 2015 Yukon Denali and I use HP tuners. Here's the reason Gen V's are so difficult; this new ecu doesn't allow people to 'spread-fudge' like you can with the Gen 4 and below. You gotta know what the heck you're doing. That means you have to go to school to learn the ins and outs, you...
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    L83 to l96 swap completed finally

    That's awesome.. I have the gen v L86 in a Yukon XL with a low duration cam(L83), it's so much fun to just stomp on the pedal and let it rip from a rolling stop, it never gets old. It has surgical throttle response, I've torn up a couple sets of tires. Praise baby Jesus for traction control, I'd...
  4. I

    Shut down /electrical gremlins update

    Ohh.. I have the same problem which at appeared shortly after I replaced the engine. Interesting, it did sit out a winter and some rainy days while I had it apart.
  5. I

    Transmission Out, What Maintenance While I’m in There

    It's going to need a set of trick flow heads, a turbo, stall converter, 4:56 gears and a wide set of rear rims.. Just planting the seed..
  6. I

    L83 to l96 swap completed finally

    Thats cool you got it together. Did you use the 6L80 or some other trans?
  7. I

    Are Yukons/Tahoes reliable?

    I have a 2015 Yukon Denali. It's been a bit of a maint bother but it's like any other vehicle, pick your poison. When I bought it I lifted the hood and said to myself, "I could work on that, beats a Ford engine with 6-miles of cam chain.". As my bad-luck would have it, I did have to work on it...
  8. I

    Engine seized

    Same thing happened to me in 2022. Engine blew up on my 15 Yukon and I still owed a good amount on it. It heart breaking.. At some point I decided to just own it and take care of it myself. I bought an Ebay L86 (6.2) for 3K and rebuilt it. I had never touched a GM engine before so, this was a...
  9. I

    Police leftovers

    The small one on your roof is a VHF/UHF antenna.. 70 centimeters(UHF) and 2 meter wave length VHF) FM. CB uses 27mhz'ish AM frequency and the antenna is much larger because of the frequency wave length. A full wave length is like 32 feet or something like that for 27mhz. It'll work with FRS...
  10. I

    Does your Tahoe LS not have the 4 low option? I need a new selector switch for mine.

    I'd get a subscription to alldata.com and look at the specifics for that model.
  11. I

    #5 and #7 misfire

    I'd pull the valve cover & check the push rods to see if they're bent or you see a busted spring or something odd..
  12. I

    Police leftovers

    Yea, 70cm and 2m band antenna(ham radio) and a couple gps antennas.. You should totally do a light bar. Haha..
  13. I

    2015 Tahoe LTZ - intermittent brake assist loss at low revs - vacuum pump?? - SOLVED

    Yea there's a vacuum pump on the right side of the engine. It's a real pain in the butt. When I rebuilt my engine I plugged the holes in the block; for a future turbo install, and routed the line from the brake booster into the intake manifold. Pretty easy fix. I guess you can call that a...
  14. I

    Describe to me how the 2-speed transfer case works... 2011 Tahoe 5.3

    The best info will be from alldata.com.. It's a $20mo subscription.
  15. I

    2018 Premier w/transmission issues.

    Yea, you have a sweet deal. My expectations weren't met. The truck had issues right out of the gate and I feel the dealership took advantage of my lack of knowledge on the problems these vehicles have. it cost me a lot of $ and heartache. They jerked me around on the warranty initially with...
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    2018 Premier w/transmission issues.

    There is a change log history in the ECU and this can be found using the GDS software and a J2534 pass through device.. Yes it will void the warranty the change in code will show up. Also, there is a bulletin that shows you how to check for this change log. Will they check? Probably... It's...
  17. I

    2018 Premier w/transmission issues.

    This thread is still going so I thought I'd put in my 5c (my cents have been adjusted for inflation) I've been through the entire gambit. My Denali transmission and engine failed immediately after the warranty expired. A new turnkey long block 6.2 runs about 14 K.. A used turnkey long block...
  18. I

    Yukon made it 1400 miles before breaking down again, it's cursed.

    I'm just ranting.. feel free to disregard.. I have a 15 Yukon, I recently; two months ago, I rebuilt the engine myself and had the trans done by a shop. Everything is great, I didn't have to go back into the engine at all once I was finished. I was pleased.. No errors; no lights, I handed it...
  19. I

    Replacing magnetic ride struts question

    I'd replace it wit OEM stuff. It'll ride like new. The front shocks are super easy and the rear are equally as simple. It's like a 2hr job, max.. Maybe 4 if you're quaffing beers and kicking tires with your buddies.
  20. I

    6.0 Engine and Transmission Emergenct

    Without any logging, we're just guessing. You sure you didn't accidently hop into someone's Ford truck? ;-) They tend to act out like this.
  21. I

    Which tuner to disable AFM?

    I started with my Ford 6.0 diesel, which is a simpler operating system in comparison to this Gen V stuff. I'll send you a PM and see if our schedules sync up. This is the best Gen V training, bar none--> evansperformanceacademy.vhx.tv
  22. I

    Lets play a game of what caused it....

    Puff puff pass Bogart! lol
  23. I

    Which tuner to disable AFM?

    I have a solid grasp of this and if you want I can walk you through all of this offline in a teams meeting. There's a little more to it than just turning off DOD in the ECU. I can also share my logging channels and histograms. This is the "Wife approved" trans shift template that I put...
  24. I

    Should this pre-purchase inspection be a dealbreaker?

    I mean, if your wife doesn't approve that's one thing; and I get it, now might be the time to return it before it's too late. But returning it because of a mismatched shock? I'd just say you don't like it. Did you do more than 1500 miles??? Across the country is more like 2400 miles.. And you...
  25. I

    Would you buy this?

    I can vouch for the problematic 2015's.. I've replaced/rebuilt the -air con, engine, trans, GPS antenna, tail lights and shocks. And now a $700 head light is going bad.

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