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did the 2022 battery drain issue ever get resolved? chasing similar gremlins in a 2021... -
I put my black bear on to see if it pulled up any codes. No DTC found. When the shop checked there was no check engine lights either. I drove the truck around today and nothing popped up light or code wise. However, whatever plug in module the shop used could find codes just like the dealership could. I should of took pictures of the shops tablet to show what they see. -
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Would you supercharge the 6.2L on a 2021 GMC Yukon Denali XL with ProCharger?.... 605HP is the stated number without going crazy - it's not the LT4 682HP package, but I'm tempted to install it... This vehicle was ... not... recalled on the engine swap - but I don't really know if that means ...don't do it... or do it;) Maybe i should start a prediction market pool on it in case it blows up;) Any thoughts appreciated - I already OWN the supercharger - stopped the installation when the recall was announced and now it's taking up space in storage until I can solve an electrical issue with the vehicle... 4th GMC suburban-equivalent truck - I like them a lot - when they don't a) discharge their batteries randomly, or b) throw a rod at highway speeds;)
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We tested the sleep mode with an ammeter in series with the negative battery terminal - 30amp fused - so we do know the actual shutdown and non-shutdown current draws and timing of the shutdown sequence. We just have no protocol information to determine what module is issuing the (likely) network management (NM) keep alive.
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