SierraKid

Video my truck won’t start, stop, or go into park. Unrelated: right side of steering wheel buttons won’t work, stated with the volume up button getting stuck. Watch the video

Theres two companies out of australia that make them off the shelf. I emailed them asking if I could buy one but have it shipped here to the U.S. Company 1 Company 2

I took it to the dealer a few months ago, sorry for the super late reply. But they said it was spark knock and to use 93 octane, but I ONLY use 93 and it still did it for a while after. Now it does not do it as much, really weird but glad its mostly gone I guess

Hey all, I'm trying to figure out getting illuminated GMC emblems for my 2019 Sierra 1500 Denali. I go to GMs website and i put in my truck and it doesn't come up, but the I put in a 2020 truck and it comes up. Does that mean I can't put the illuminated emblems on my 2019 truck? Anyone done this with a 2019 truck, I'm wondering about wiring and maybe if the 2020s had something that my 2019 doesn't

Just installed the K&N intake on my 2019 Denali, pretty easy and definitely worth it. The quality is pretty good but it did have to sand one of the holes for the ducts down a little bit in order to fit the radius adapter. I'll post pictures if anybody wants them, but for sure worth it. Seeing a little better fuel economy around 1-3mpg more, K&N claims +15hp and +35lb ft of torque but those figures are not true. There is a noticeable difference in acceleration but it is not a 35lb ft difference. The best part about it is the intake noises, truck sounds much meaner from the cabin than with the stock air intake. Overall pretty great modification. Only other complaint is that the MAF wiring has a good amount of tension now that it is in a different spot. If you're thinking about doing this to your truck, I would definitely recommend it. I think you'll see the power difference with a tune, but the only option for tuning these trucks is the HP tuners ECM which is pricey.

I've had this issue for two months but it has been minimal until recently. While going anywhere above 30mph, at around 1200rpm if I give it about quarter throttle to half throttle i will hear a clanking/knocking noise. I have recorded it with my phone but you are unable to hear it at all. The other day while merging on the highway it made the noise much worse than it ever has. I am wondering if anyone has had this before, I know some of the 3.0 DuraMax guys have had it, but has anyone with the 6.2 had an issue similar to this. I will be taking it to the dealership tomorrow.

I really would not upgrade the head unit ever. All the OEM settings for the vehicle are in the stock one and I do not think that any aftermarket head unit would retain them perfectly

With that supercharger I am almost certain that your powertrain warranty will be 100% voided

Does this delete ARC in the rear ?

Amazing build and amazing write up. This is very needed in this community because the Bose system is so complex and weird. Thanks so much

I know there have been many threads about this topic but I have a unique question. I have a 2019 Sierra Denali, I'm wanting to just do a speaker upgrade, I've heard that with the bose system you need to upgrade the amps for subwoofers and all that. Do i need to get new amps for just a speaker upgrade or would i just need a sound processor like the LC7i and a harness from LLJ customs? Any help is appreciated thanks

My 2019 Sierra Denali 6.2 does the same thing, my 2017 Yukon Denali 6.2 does the same thing, my 2018 Yukon Denali 6.2 does the same thing. If all 3 of my 6.2 cars do it, I think it's normal, but why it's normal confuses me.