AFM DFM Conundrum
- Thread starter DrDra
- Start date
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Marky Dissod
Full Access Member
Best time to disable Cylinder Deactivation was 35,000 miles ago. Second best time is now.
Since you're asking, you likely haven't found your plugin yet,
so use the shifter to manually avoid final gear and drastically reduce Cylinder Deactivation.
How do I use the shifter to manually avoid the final gear?
Thanks for your help!
I googled it. Got it! Question: Will this device be adequate?
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PPK_
Full Access Member
better than doing nothing. however.. it does allow the 5.3 to use DFM during coasting. bummer. i use carbyte. it works on deceleration too. and you can use 10th gear.
while you are working this... do implement a wash of the intakes with solvent... as the intake cokes up with what comes in from the intake.. this is what contributes to loosing a lifter. also install a catch can to eliminate a lot of oil on the intake valves... and think about using a 5w30 oil. the heavier oil does reduce how much comes oil off the intake...
while you are working this... do implement a wash of the intakes with solvent... as the intake cokes up with what comes in from the intake.. this is what contributes to loosing a lifter. also install a catch can to eliminate a lot of oil on the intake valves... and think about using a 5w30 oil. the heavier oil does reduce how much comes oil off the intake...
Thank you!!
I’m going to buy the carbyte.
I also have a 2014 Tahoe with 100k miles. Should i put one of these in their too?
Rygrego
Full Access Member
I installed a Range disabler in my 2016 Yukon with 50,000 miles when I purchased it in 2019. I figure if the lifters don't get to collapse they won't be able to get stuck collapsed. A little over 105,000 and zero issues. And fuel economy is not compromised at all. There is no good argument not use one. I do change my oil religiously at 5000 miles max with 5W-30 in the Arizona winter and 15W-40 in the Arizona summer, no 0W-20 for me ever.
Marky Dissod
Full Access Member
You should get that vehicle's ecm & tcm tuned. It'll disable cylinder deactivation, among many other things.
Shop around for a person who will update your tuning stereotypes by answering your questions.
The goal is to tune your vehicle to suit your tastes and use cases (which is why I never recommend 'canned' tunes),
the major side benefits are that the engine and transmission will last longer in addition to behaving more like you'd prefer, whatever that is.
I used to think that, too…until a lifter failed at 115k miles
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