Hello all, we have been in Toyota Vans and SUVs for a while and considering making the jump due to size etc. any thoughts on the gm products vs Toyota?
Also between the 5.3, 6.2 and the diesel what engine do you recommend most for reliability? Lastly, how are the new trucks for reliability?
I'm an almost life-long Toyota nerd...but I too had to get the best full size SUV out there due to size and Toyota shrinking the Sequoia massively.
After years of research I picked a Z71 Suburban with 5.3 (with no moon roof and no air suspension) as my best chance of getting a reliable extra large SUV.
It hasn't disappointed yet but only has 10,000 miles on it. I drive it almost exclusively on very long road trips between rural and remote destinations. A decent and usable 4wd was a must have.
What I actually needed was a Tahoe but seeing the extra cargo space in the Suburban was too good to turn down. I'm glad I opted for the extra room.
Coming from Toyota Van and SUVs the first thing you will notice is the massive amount of room and the size difference a Tahoe & Suburban have.
The third row is fully usable and comfortable for long road trips for adult sized people. It also leaves a good amount of cargo space behind third row. There is slightly more leg room in Suburban vs Tahoe in third row.
The space behind third row in my 24 suburban is more than I have behind second row in my 5th gen 4runner.
Nearly all the trim levels in Yukon or Chevy will feel like a luxurious upgrade compared to the Toyotas.
You get a whole lot more SUV for the same money, essentially, in comparing prices for Sequoia and those of Yukon and Tahoe/Suburban.
The 5.3 was my pick for reliability reasons. There are very few, minimal, known issues on the 5.3 especially compared to other options.
Coming from the Toyota products you will find the 5.3 to be plenty powerful. The internet will tell you the 5.3 is a dog and a worthless engine. The reality is far, far from this.
The 6.2 is a monster of an engine but is having a rough go of it right now with serious engine problems. GM indicates the issues are ironed out for the 2025 model year. If you have to win drag races with your SUV the 6.2 is the way to go...but I'd wait it out a bit more to see if the dust is truly settled on the bearing issue.
You'll hear and read alot about lifter problems dating back a decade or more. However overall the lifter issue isn't as prevalent from 2022 on. ( The 6.2 had an oversize lifter bore issue but that has been fixed for a few years now).
The DFM system (dynamic fuel management) is a hydraulic system of sorts that actuates pins inside the lifter. This causes the lifter to move without opening the corresponding valve. This system is at the heart of engine lifter reliability. Not only is the DFM function a source of reliability issues, but the small needle bearings in the lifter roller themselves can wear out.
The good news is that you can either opt to install a DFM defeating device or drive in L9. Both will disengage the DFM function.
Changing oil on higher frequency than OEM recommendations seems to also correlate well with increased lifter life. Oil changes are super easy on these engines as well.
If fuel mileage is an absolute must have then the 3.0 diesel is the way to go. The 3.0 gets amazing fuel mileage.
I have a 2019 Tundra so I went from LOLWTF mileage to about 18 mpg in the 5.3 suburban (that is at 78 mph highway speeds with moderate amount of passing).
Although there are some valve body issues popping up, the 10 spd transmission in the GM products seem to be better executed and better tuned than the Ford (despite the 10 spd being co developed by both OEMs).
Basically if you need the size the GM product is likely your best bet.