2017 Chevy 1500 - Program to Full Time V8

Think those motors came out in 2007ish and there were problems the first few years. but I think they have fixed that issue, although i'm not sure what years they made the fix.

If I can find it I will link it. Someone did a tear down of some higher mileage motors with this technology and couldn't find a difference in wear from the full time cylinders and the variable cylinders.

I have an '09 Chevy and had the displacement on demand crap turned off and when the lifters started coming apart, the dealership blamed it on that.

quote:

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I go ahead and program my truck so it doesn’t switch back and forth between a V8 and V4.

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The problem isn't the displacement on demand itself. It is the lifter design.
You can disable it all you want those lifters will still be used.

To fully fix the problem you need to do a DOD delete, and replace the lifters themselves.


ETA:
Just noticed "2017"
The issue with bad lifters ran in the GenIV LT base motors from 07-13.
The newer trucks like ours with the GenV motors are fine. The lifters and AFM is different. It seems they have corrected the issue as it's not a common issue anymore.

It's the crappy hydraulic lifters. My engine bombed twice. GM fixed it the first time and then refused the second time when the engine was 60 (!) miles out of warranty. frickers.

They know damn well it is a design issue and they refused to do a recall. As stated, they corrected the issue in the new engines.

First one was an 09 that had all the problems. Current one is a 19 and has had no problems.

I have a 2011 with 165k and I used a diablo sport trinity to disable the v4 thing around 100k. I didn’t notice the lifters knocking or anything like that, I had several friends with a similar truck and all of them dropped lifters between 80-120k so I thought I’d be next. I’m not sure if it did anything because the lifters still move unless you get a different cam but it helped me sleep.

I have an 2011 with 160k and I did a full DOD delete any decent mechanic says to do it automatically after warranty runs out. Diablo is a good brand I'd go ahead and just have a mech do the full DOD delete mine was just south of $600. If anything he should be more concerned with the tranny going down. Had to have mine rebuilt at 145k and that was like $3600. That one hurt!