Thoughts on 2020 engine possibilities - TerrainForum.net: GMC Terrain Forum
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post #1 of 71 (permalink) Old 05-15-2019, 11:17 AM Thread Starter
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Thoughts on 2020 engine possibilities

I am currently planning to buy a 2020 Redline with the 2.0T engine about this time next year. I have test driven a '19 twice now with the 2.0 and like it quite a lot. But I'm becoming concerned about the 2020 engine choices. On the gmauthority.com sight they say that for 2020 the 2.0T may be the LSY i4. I understand that it's speculation at this time. But further reading indicates that the LSY has cylinder deactivation. Now I'm not an engineer or a mechanic, I'm just a guy who has been driving for along time and has learned a few things about cars over the years. My gut feeling is that I don't want cylinder deactivation. It looks like the LSY drops about 20 hp. compared with the current 2.0, and torque looks about the same but comes on earlier in the new engine.

I would like to get your thoughts on this new engine choice for the NOX. That engine has not been confirmed for the Nox so I may be worried for nothing at this time. But if that engine becomes a reality then I may have to move my timeline up to purchasing a 2019. That will not make my wife happy, but sometimes ya gotta do what ya gotta do. So if you have any thoughts about the LSY engine please share them.

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post #2 of 71 (permalink) Old 05-15-2019, 12:07 PM
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A lot of pre-production info floating around.
If you go on gmfleetorderguide.com they say:

The FWD/AWD engine in the 2LT and 2LZ will be the 252 hp/260 ft lbs. LTG
I don't see where the Redline is different.
I guess wait and see.
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post #3 of 71 (permalink) Old 05-15-2019, 12:58 PM
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Quote:
Originally Posted by wbw View Post
On the gmauthority.com sight they say that for 2020 the 2.0T may be the LSY i4. I understand that it's speculation at this time. But further reading indicates that the LSY has cylinder deactivation. My gut feeling is that I don't want cylinder deactivation.
Thanks
There''ll probably be an aftermarket device to defeat that. "Repairman54" is currently running an AFM deactivator in his Tahoe:

https://www.equinoxforum.net/10-gene...who-knows.html
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post #4 of 71 (permalink) Old 05-15-2019, 01:07 PM Thread Starter
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Thanks guys.

Any thoughts on cylinder deactivation?

Colt Hero - that's good to know about the aftermarket device. I still think I'd rather have a 2.0T without deactivation.
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post #5 of 71 (permalink) Old 05-15-2019, 01:47 PM
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I honestly don't think the new 2.0t will show until the Refresh coming in 2021 unless they are doing it in 2020. The 2020 Acadia is getting the new 2.0t. Eventually all vehicles will have some sort of Cylinder deactivation. There were early problems with the technology but seems all the manufactures have fixed those issues
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post #6 of 71 (permalink) Old 05-15-2019, 06:15 PM
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I can't comment on a 2.0T with AFM but I can on the Acadia V6 with AFM. Did not notice any performance issues when it dropped down to 4. With the Denali I could not see when it dropped on the DIC like you could on the lower trim levels, but you could see the instant mpgs jump up in the 40s - 50s and sometimes 99.

Not sure what AFM would do to a 4 cylinder.

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post #7 of 71 (permalink) Old 05-15-2019, 08:49 PM
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Not sure what AFM would do to a 4 cylinder.
Good point. Why would they even put AFM on a 4-cylinder ... to drop down to only two cylinders
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post #8 of 71 (permalink) Old 05-16-2019, 10:18 AM
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I've provided some additional technical information on the SLY 2.0L engine below. GM engineer Todd Pawlik indicated that the Cadillac XT4 is the first vehicle to make use of the engine but will shift to high volume production in the corporation.

https://gm-techlink.com/?p=10221
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post #9 of 71 (permalink) Old 05-16-2019, 01:02 PM
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The sliding cam shaft is similar to what is also used on the 2.7L 4 cylinder in the trucks. Along with AFM (cylinder deactivation).
https://tiremeetsroad.com/2018/05/19...as-honda-vtec/

To me. . . it could be a nightmare and as comments indicated in the Tech-Link article, people better heed oil changes pronto rather than waiting "when they get a chance".
My adult kids treat their cars awfully. They don't check oil level regularly, wait till the Change Oil Soon light comes on, and then continue to drive it for 3, 4 or 6 weeks after. They also will stop in the driveway, or wait to pick up the kids and leave the engine idle for 10, 15, 25 minutes or more and then complain about poor MPG. This is even in summer warm weather with the windows down.

I see a lot of trashed engines on the horizon. Most millennials just want to USE things . . . not maintain or repair them. The next text message is more important than any warning lights on the DIC or keeping track of when maintenance is due.

I can see I am going to have a more and more difficult job of finding my next vehicle. I like the new Blazer with V6 enigne. But the way things are going, in a year or two all that will be offered in any vehicle are one of these Rube Goldberg genius engines.
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post #10 of 71 (permalink) Old 05-16-2019, 03:10 PM Thread Starter
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Thanks for all of the info so far.

Quote:
Originally Posted by JayTee2014 View Post
But the way things are going, in a year or two all that will be offered in any vehicle are one of these Rube Goldberg genius engines.
I hear you. That's why I want the current 2.0T if next year is going to be cylinder deactivation.

And I'm afraid you're right about most young people today.

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