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American Cobra

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    2021 Trailboss LT 6.2

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  1. Great looking truck. If you don't mind, what brand is your front bumper and also what tire size are you running? Thanks.
  2. I am one of those that has had the issue and continues to look here for a solution, but i dont feel like there will be one at this point. I have learned to just live with it, but when i roll the windows down on a nice day i put it in L9. I believe others purchase the Pulsar LT module and I think that solves it as well. Ive considered going that route but the $500 is steep, being that I have no other real interest in the other features it has. You might be right on the noise at startup vs the noise when downshifting when coming to a stop being different issues. I hadn't really considered that. By the way mine only has the metallic chirp, not the clunking.
  3. This is a common issue with 6.2Ls, and the dealers have no solution for. The noise stops when you put it in Manual mode, shift up to L9 and drive around. Magically gone. I believe its due to the DFM technology and many owners choose to get hardware to remove this "feature" such as the Pulsar LT. Edited from AFM to DFM.
  4. This is exactly how mine behaves also. Driver side - only goes blue/purple after driving it for a while. I haven't taken it into the shop and will probably just live with it unless it gets worse. Super annoying.
  5. This has been talked about / debated on here in many threads. Its the DFM on the 6.2 engines. Trying putting yours in L9 and drive around (this turns off DFM). You wont hear the noise anymore. There is no fix that I know of except for purchasing the Pulsar LT module for $500 to shut off DFM.
  6. Mine used to do this when brand new. I have 5500 miles now and its mostly stopped. Still hear it from time to time but it doesn't bother me much.
  7. This^^^^ Also had both. The 6.2 with the 10 speed is near perfection. Others are just fine.
  8. I have a 21 Trailboss, and I have noticed this as well. I saw it in a reflection as I was parking, otherwise I probably wouldn't have seen it. However, it does appear the one blueish color light has returned to its original bright white as I type this. Not sure how/why, but I'm going to keep an eye on it.
  9. Yes its the DFM. To test it, instead of putting it in Drive but it in manual and click the gear up to 9 and drive around...solves it.
  10. My 21 TB 6.2/10speed shifts smooth as butter. 3300 miles on it. It might have had 1 or 2 shifts at low speed since I bought it that weren't ideal, but not clunky. I came from a 2015 6.2/8 speed so I know clunky very well.
  11. Mine works really well and I enjoy it. And no, you don't need a GM data plan to use it, it connects via Bluetooth.
  12. I have a 2021 TB with a 6.2 and have read several threads in these forums about it. Seems like its something that happens with varying degrees on all 6.2s. The belief I have after reading and doing some testing is that it has something to do with DFM. People have tried addressing it as a starter issue, exhaust issue, flapper issue, etc with no success. These noises don't happen (on mine at least) when you override the system by putting your gear shifter down to L, and switching to gear 9 - drive around and check it out for yourself. I plan on purchasing a Pulsar LT when they are available again.
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