r/gmcsierra

In the market to purchase a new to me truck (2020-24). Always been a Chev/GMC guy, but looking at the current engine options has me reconsidering. Specifically the GM 5.3 vs Ford 5.0 and 3.5 Ecoboost. Both Ford engines produce significantly more power (400hp vs 355)and have better mileage. On top of that, they don’t have the DFM lifter concerns of GM, and scores higher for overall reliability.
Tell me why I should still buy a GM over a Ford. It’s what I want, but the practical part of my brain is having a hard time justifying it.

“Did you know your washer fluid is low? You should add fluid.

No for real, not sure you heard me, the washer fluid is low.

Okay dude, I know you’re driving and whatnot, but don’t blame me. I’ve told you your washer fluid is low.”

— My 2024 AT4 every 3 freaking minutes

2022, 5.3L, SLT, 67,400 miles, mobile1 oil every 5k miles, oil filter every other, 0 problems.

In the light of the 6.2 engine issues would it be wise for my vehicle to go to a dealership for the "67,000" maintenance? I was thinking maybe GMC could identify some wear and tear that may be warrantied. Is there an initiative at GMC to fix small "now" problems in hopes of avoiding or taking ownership of long term "preventable" problems?

Just purchased a 2026 Denali Ultimate. Dealership is installing bilstein 5100 0-2.5” front adjustable struts and 5100 0-1” rear adjustable struts.

Question is, which adjustment level do I tell them for the front and rear for a good ride height and level.

Next, what size AT tires can I run on this? Something that looks aggressive but isn’t loud and doesn’t require any spacers.

Decided after I got home from dinner with the wife Friday night to go ahead and install the software update. Had not driven the truck since then. Went to start to truck this morning and the battery was completely dead. From what I have read that the update glitched and drained the battery. Then the display had the nerve to tell me the update was unsuccessful and to try again. So lesson learned, let it update, then check on it afterwards to be sure it went through and didnt get stuck in a cycle. I will now look at my truck as a gigantic computer and never assume everything works right and check on it. From what I have read on the internet, I am not the only person that this has happened to as well.

I slid back into a white pine last winter on my driveway hill and dented up my original tailgate pretty good. I found a replacement Chevy LT tailgate (interchangeable), and it works great. I couldn't locate a salvaged Sierra tailgate at the time.

Now I am selling the truck. It has 217K miles so not sure new owner would care so much. Suggestions? Should I buy new badges/emblems to offer as part of the sale (I do not trust myself with removing old and applying new)? I would need GMC, Sierra, and SLT badge replacements...about $175 OEM.

Thanks for any advice, including tips on doing myself?

Edit: I have the old tailgate if removal and reuse is an option.

So here's my story, I am located in northern Canada.

I had a 2017 Ram 2500 Laramie Cummins. Twice the DEF tank frozen/broke. One on warranty. One off $1400 repair. Turbo blew at about 58000miles/93000km. $10k repair.

New front end at 67100miles/108000km $4.5k repair.

Then air suspension failed at 72000miles/ 116000km. They are $2100 for each bag. And double it for installed. $8k 🤦‍♂️

That was enough, I had been paying more than a monthly finance of a new in-warranty truck

So I bought a 2026 GMC sierra 3500 Denali on June 19th. I was pretty excited about it, and immediately loved the rear bumper steps and multipro tailgate. (How other truck manufacturers haven't copied the steps is crazy)

Well a Trip to the BC coast and @2200miles/3600km catastrophic engine failure.

"Bottom end noise, and metal contamination in the oil, and all cylinders misfiring" was exact diagnosis. New engine required. Likely wont see my truck for a month.

The dealership and GMC has treated me very well, no complaints there.

I'm curious what y'all think?

Would a new engine replacement on the vehicle history reduce future resale value? Would you trust this truck again?

My excitement and trust in this vehicle has been obliterated at the very height of it. So I'm seeking outside advice on a path forward.

TLDR: Truck engine blew up at 2200miles. Replacement engine coming ~1month. How do I get excited for this truck now? How to trust the reliability of it?

Hey all, I found a 2024 GMC 2500 SLT 6.6 L Diesel for 64,750 with 30,000 miles. The reason I’m posting in here is because looking at the carfax, it has had 4 owners within 2 years. First one having it for about 2 years(18k miles), then one having it for 40 days and the rest for 8 and 20 days. It’s got a clean carfax, no accidents, no major service issues, just the basic maintenance. Would it be recommended to stay away? Especially with the 4 owners in two years?