New engine 2023 Denali

[Luke01845]

I purchased a 2023 Yukon Denali Reserve with less than 2000 miles on it my 6.2 L engine is shot and I need a new one. I want GMC to buy the truck back but they want to fix it and I’ve worried about future issues. Anyone else have this experience?

 

[BrokerThis]

How is the engine shot exactly?

Make sure the dealer gives you a loaner during the extent of the repair/replacement.
Ask for extended warrenty to 6yr/100k

 

[tom3]

Was this GMC titled new when when you bought it? Or was it actually a used vehicle? The warranty is transferable but a used vehicle is probably not covered over lemon laws.

 

[UsualSuspect]

Engine swaps are generally easy, most of it is plug and play, unlike the old days. What happened to the engine where it needs to be replaced?

 

[NoYukonYet_1Jeep]

I had an engine replaced on a 2023 Denali. Rod bearings blew at 3600 miles. Owned the car for 1 Month. Engine replacement went well, car was running great, but I still worked with GM and they ended up replacing the car for us. Whole process end to end took about 5 months from when the first motor blew and when the second 2023 Denali was delivered. My second build was definitely expedited. Think it was about 9 weeks from when I submitted the order. My first order took them 9 months to build.. Good luck. New truck is also running well. 6.2L in both trucks ..

 

[nicoles747]

I purchased a 2023 Yukon Denali Reserve with less than 2000 miles on it my 6.2 L engine is shot and I need a new one. I want GMC to buy the truck back but they want to fix it and I’ve worried about future issues. Anyone else have this experience?

my 2023 ultimate Denali engine ceased while driving two weeks ago. It has under 11,000 miles. Dealer ordered a new engine but I am also worried it will happen again. According to the dealer gmc is having issues with the 6.2 engine.

 

[Burban22]

Yikes! My 2018 sierra with 6.2 has been fine but only have 24k on it. I know GM went from AFM to DFM in 2019. I thought lifter failure was the biggest problem on 5.3 and 6.2.

If engine locked up must have been oil pump failure?

 

[Doubeleive]

Yikes! My 2018 sierra with 6.2 has been fine but only have 24k on it. I know GM went from AFM to DFM in 2019. I thought lifter failure was the biggest problem on 5.3 and 6.2.

If engine locked up must have been oil pump failure?

they went to dfm in 2015 on the suv's and I believe 2014 on the pickups
plenty of engines out there with many hundreds of thousands of miles
no changes in 2019, changes occured in 2021

 

[Burban22]

AFM gen 1 started in 2007 trucks and SUV. GMT900

AFM gen 2 2014 trucks and 2015 suv. K2XX

DFM (can shut down all cylinders instead of just 4) started in 2019 Trucks / 2021 SUV T1xx and current generation.

https://gmauthority.com/blog/gm/general-motors-technology/general-motors-propulsion-technology/general-motors-dynamic-fuel-management-cylinder-deactivation-technology/

 

[Geotrash]

AFM gen 1 started in 2007 trucks and SUV. GMT900

AFM gen 2 2014 trucks and 2015 suv. K2XX

DFM (can shut down all cylinders instead of just 4) started in 2019 / 2020 when T1xx and current generation.

https://gmauthority.com/blog/gm/general-motors-technology/general-motors-propulsion-technology/general-motors-dynamic-fuel-management-cylinder-deactivation-technology/

That was only on the pickups. The SUV's still had just AFM and not DFM until 2021.