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A few days ago, I've test drove a 2026 AT4 with the 3.0L diesel and was impressed at how quick it moves due to the insane 495 ft-lbs of torque, and hardly heard any engine noise. Earlier today, I traded in my 2020 6.2L TB for it. I pickup my new ride later this week. This is my first diesel powered vehicle and I look forward to the experience of owning one. -
Because single shot injectors are ancient and multi hole injectors provide smoother running engines and sharper throttle response due to the fuel being atomized better..the best lead I have is a 24lb blue top injector almost everything matches up but the injector will put out about 26lb/hr which is just outside the gm threshold.figured id ask here to see if there was an absolute answer -
Why is my question? Any change in injectors requires a tune. Unless you are going back with the OEM part number or a newer part number of that same injector. Any size difference or type difference like the EV6 style injectors all have different injector data for them. And there is no EV6 injector that matches the factory 25 lb/hr size that your truck comes with. I've been messing with these trucks and tuning them for a long time and what you trying to do doesn't exactly make sense to me. -
By James McArthur · Posted
My 6.6 gas lt8 had lifter noise with 28000 miles bought new 2026 and while driven to dealer it threw #1 rod bearing “HD my ass” good luck with yours i hope it don’t turn a rod bearing! -
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By Grumpy Bear · Posted
When a condition becomes a business model. https://www.gm-trucks.com/gm-truck-suv-incentives-pricing-2026/ Zane posted this in "Latest Articles". The honest bottom line Truck buyers have spent three years assuming this is a temporary condition that will break once inventories normalize. GM just presented it to investors as a durable strategy, on a chart, as evidence of good management. Inventory did normalize. GM is at 511,000 units and squarely inside its own 50 to 60 day target. The discounts still did not come back, because the low incentive number is the goal rather than a symptom of shortage. Plan your purchase around that reality instead of waiting for it to change. Follow our ongoing GM News coverage for pricing and incentive changes as the next-generation trucks land.
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