$79 bucks for an AFM disabler = drive better AND better gas mileage?

[tom3]

What I'm hearing is that in the pre 2021 motors the lifters are usually good for 80k miles, then it's a running on borrowed time thing. Just amazes (shocks) me that GM would put such crap in such an otherwise superb engine. This contraption:


This definition really spells it out:
con·trap·tion
/kənˈtrapSH(ə)n/
noun: contraption;
a machine or device that appears strange or unnecessarily complicated, and often badly made or unsafe.

 

[k_arnold72]

As soon as I have enough time here on the forum to post, I'm selling my range device. looks brand new.

My engine still blew up. I think in stock form theses engines have a 'grenade timer' and it can't be reset until you pull the AFM kit out of the engine.

Range afm was doing funny stuff to my transmission but I caught it early. Turned out I was using one that was only for 6 speeds. I have a 2018 with 6.2 and 10 speed. Went with a Range Pulsar LT instead and have no complaints about that. Truck took about a week to relearn shift points.

 

[MrMonte]

What I'm hearing is that in the pre 2021 motors the lifters are usually good for 80k miles, then it's a running on borrowed time thing.

I made it 89K miles with AFM tuned off at 59K. Now running non AFM setup on my 2018 Yukon Denali

 

[Ibustbravo]

What I'm hearing is that in the pre 2021 motors the lifters are usually good for 80k miles, then it's a running on borrowed time thing. Just amazes (shocks) me that GM would put such crap in such an otherwise superb engine. This contraption:

View attachment 410373
This definition really spells it out:
con·trap·tion
/kənˈtrapSH(ə)n/
noun: contraption;
a machine or device that appears strange or unnecessarily complicated, and often badly made or unsafe.

This is what that dohickey will do the an engine.