JoJo1

I have a 2021 Elevation 5.3L with 45k miles. I was brought in at 40k with a steady check engine light (P0300 code) that didn't turn off on it's own. Misfires on multiple cylinders. They cleared the code and it hasn't come back, but I just brought it back for the 45k mile oil change and asked them to look at the engine again and even though the steady light hasn't stayed on, but it recently flashed on and off and then stayed off, but must have left the history on the read. Right now the truck is at the dealer and they're trying to figure out the problem... So after doing some research on my own, it seems like a bunch of similar trucks have been having lifter issues, pushrods, fuel injectors, etc. all associated with the AFM and DFM. I have two major concerns. One is I'm approaching the end of my factory powertrain warranty and the other is the reliability of breaking down on a roadtrip with my family. I read that there's a class action lawsuit against GM, but no recall issued and there's also a bulletin to replace just one side of the lifters. Also some talk about GM extending the warranty to 100k because so many have had this issue. What options or leverage do I have at this point? It says my trade-in value is around $40k to $42k, but new truck prices are just insanely high, so a trade-in is not a great idea. Do I have any leverage to try to get GM to replace all the lifters and not just the one side? I did purchase an extended warranty when I bought the truck new, but not sure about the exact coverage on this stuff. I'm going to review that contract to see what the details say, but can get something seperate from GM to cover this problem if it fails in the future? The dealer didn't come back to me yet with a diagnosis on the problem(s), but I want to be ready with my options before calling them tomorrow morning. Any advice is very helpful. Thanks!

I have a leveling kit and am trying to either find a dealer near me to install it, since I'm still under warranty or go to an aftermarket 4x4 shop or can I go to my local mechanic to have them install the spacer kit? Anyone know of any dealers within 1 hour or so from NYC that is cool with installing aftermarket parts? If not, does anyone recommend a shop that would install the kit if I supply the parts? Thanks!

Just wanted to share that if you have the GMC with existing black hooks, you can reuse the hardware and just order 2 red hooks. GM part 84338715. I purchased 2 from eBay seller partscenterplus for $68 shipped. They drop shipped from GM in a factory box and they bolted right up.

Let me know if anyone is interested in selling their GMC red hooks?

Do you still have them? Do you know if they'll fit the Elevation?

Thanks everyone for the advice! I had the installer remove all plugs except for the three on the front of the bed, because they'll get covered by the Roll-n-lock canister and should never be accessed again. I also installed the Deezee cargo tie downs. Installation was very easy and they look good. I coated the threads with a thick coating of anti-seize.

Just first wanted to thank all of you who helped me out recently when researching my new truck. I ended up going with the Elevation with the 5.3L - 10 speed. The truck is stunning! It didn't come with a bed liner, so after researching the different options (Rhino, Line-X, Bullet), I decided that for my needs the Rhino Tuff Grip should suit me best. I will also install a Roll-n-Lock cover right after. My question is what to do with the plastic or rubber tie down and other plugs in the bed? I plan to install 2 tie downs on each side. Was looking at the Dee Zee DZ97903 type. They look better than the GM ones IMO. The rest of the plugs will never be used. I read that some spray over the plugs and others remove them before spraying, but with the thicker Rhino liner, will those plugs sit back in correctly afterwards? Thanks!

Thanks for all the great info. Truly appreciated! I hit the dealer today and test drove the Custom TB in the 5.3L 6speed, LT in the 5.3L 8speed and the RST in the 3.0L TD. As much as I love the look of the TB, I'm agreeing with most of you to look at the LT or RST instead. The extra touches and drivability on the LT and RST are better suited for my needs. I can always put on off-road tires and a lift kit later on if I want. I really liked the way the 5.3L accelerated a lot. The 3.0L also felt really nice, just prefer the sound of a naturally aspired engine more than the turbo sound, but power was plenty on both. Right now I'm leaning towards the 3.0 for the MPGs, the 10 speed tranny, 100k powertrain warranty and hopefully longevity. I've never owned a diesel before, but have heard stories about costly injector replacements. Anyone know if and when they're expected to need replacing? I looked up scheduled maintenance on the 3.0 that they posted up to 150k and don't see anything besides oil, fluids, filters and oil pump belt. What costs (in general) should I expect up to 100k, 150, 200k? Thanks again!

Thanks for the info! TBH I wouldn't have any plans to mess with the tuning on it, so however it comes from Chevy, is the way it'll remain but definitely good to know. I had mentioned it in the other replies I wrote the other guys that many of you keep hinting to reliability issues. So the 5.3L AFM motors are notorious for burning oil? Is that still the case on the new ones? Any other issues that you know of with the other motors or trannys?

Thanks for the info!

Good information. Thanks. Question since you seem to track this stuff...do you remember the real world mpg's on the three engines? 3.0 vs 5.3 vs 6.2? The numbers that Chevy puts out seem off.

Thanks for the info. In reading through the other posts on my questions, others mention possible reliability issues on these trucks. I'm new to full-size pickups, but my Frontier has 215k miles on it and has been very reliable and has been mainly just normal wear and tear parts replaced. I'm pretty ****** with keeping up with scheduled services and stuff. I just hope that this new truck is realistically a long-term keeper. Is it normal for these trucks to last 200k on a stock engine, tranny, etc. or rebuilds? What are the average lifespans of one of these trucks which have been maintained?

Thanks. Are the tranny issues on the 6, 8 and 10 speeds?

Thanks for info. Any reliability issues with your truck?

Thanks for the info. I'll research he GMC's. I like the look of the Elevation. Just have to compare like for like with the Chevy's to see the differences.

What do you mean by maintenance? Keeping up with all scheduled services or these trucks are not very reliable and the engine, tranny, other expensive parts, etc. won't last 200k miles?