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Abiker21

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About Abiker21

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  1. Yes, I had the same problem with a leveling kit using 33"tires. It was really bad when towing. The dealership recalibrated all sensors which helped, but the final fix was purchasing rough country's tire size calibrator $150. I have the edge programmer which fixes speedo but not the stability control. RC programmer does both computers(speedo & stability) . Yes it will work if you stack both programmers but first do edge then RC. Edge will over write RC and then it will feel like nothing helped. Unprogram in reverse order and it will go back to stock, but with most programmers the dealership can see traces. They can always reprogram back to stock for .5 hours of labor.
  2. You can fight the dealership or upgrade your suspension which will not only get rid of the noise but help every facet of driving. Had them for years and forgot about this problem. Roadmaster active suspension. Noise gone, wheel hop gone, that annoying squirrely backend when going over bumps/ curbs. Drives like a caddy. Look all over the net only 5 star reviews for a reason. 2015 ltz 6.2 By the way the noise is from leaf movement during axle wrap. I'm sure there are cheaper solutions, but these are worth every penny. No drilling required.
  3. Get a copy of the service bulletin and ask your local guy how close he can get to accomplishing it. Early on GM didn't realize the importance of flushing the cooling lines and were chasing their tails when the problem showed back up soon after.... it must be a bad TC....
  4. If it feels like you're going over rumble sticks/ rpm flutter at constant speed. Look up torque converter shudder. There is a service bulletin that can be applied under your drivetrain warranty. I believe mine started the same way until it was a consistent failure on the highway. Don't change anything for a an other 10,000 miles or until it gets worse. The RPM flutter will get more pronounced and then you know it's the torque converter shudder.
  5. I've only put a couple of thousand miles on the truck since my first flush. Before the flush. I put road master springs on(love them) drives like a caddy the shudder went away for a couple of years and when i programmed the truck it went away for a long time. I deprogrammed it and the problem started showing up so I could bring it in under warranty. It became constant and I tried programming. It didn't keep the shudder away for more than a month.
  6. I have the same truck and it started the same way. It will get progressively worse until it's always happening during highway driving. I tried multiple upgrades to the truck and it seemed to get rid of the problem, but over time came back. The dealer did the flush under the powertrain warranty and finally i have a flawless truck.
  7. 16-NA-175 they updated the service bulletin in October. It says they will come out with a fix first quarter 2019. They flushed my transmission and replaced the fluid 12/2018. Fixed my shudder.
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