Understanding Active & Dynamic Fuel Management and The Problems They Cause (AFM vs DFM)
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- เผยแพร่เมื่อ 15 มิ.ย. 2024
- In today’s video, Jake explores the world of Active Fuel Management (AFM) and its successor, Dynamic Fuel Management (DFM). AFM and DFM are technologies developed by GM to improve fuel efficiency by deactivating select cylinders during low-load driving conditions. This reduces fuel consumption by allowing the engine to operate more efficiently when full power is not required. However, are they as good as GM makes them sound? Jake covers the differences between AFM & DFM, the problems these systems can cause, and what route is best to delete or disable Active Fuel Management (AFM) or Dynamic Fuel Management (DFM). This is your go-to video for all things AFM & DFM.
Here is a link to Our AFM/DFM Disabler Device We Developed in the US:
Amazon Prime: www.amazon.com/dp/B0D1T1FMJK?...
Boost Website: boostafmdisabler.com
Also, if you would like to read up on this topic more, we have an article on our Chevy Trucks website:
chevytrucks.org/delete-or-dis...
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00:33 - What is Active Fuel Management & Dynamic Fuel Management?
01:39 - AFM vs DFM: What Are the Differences?
04:22 - Reliability Related Problems AFM & DFM Can Cause!
05:49 - Performance Related Problems AFM & DFM Can Cause!
07:06 - Delete or Disable AFM/DFM: Which is Better?
07:57 - How to Disable AFM/DFM
11:06 - How to Delete AFM/DFM - ยานยนต์และพาหนะ
![ทัศนศึกษาโรงงานผลิตโค้ก [THAI/ENG SUB]](http://i.ytimg.com/vi/M9y-TJBNem0/mqdefault.jpg)
What would have been simpler would have been if they just let the lifters work normally while shutting off fuel delivery to different cylinders as necessary. I imagine that with the valves closed while the piston is trying to induct and expel it builds pressure and forces the currently working cylinders to work harder to rotate the crankshaft thus defeating any fuel economy gain.
Great Video.
Thanks! Glad you found it helpful
I have a 07 Silverado that has the full delete normal lifters changed cam shaft valley cover and my truck runs like a dream
D - The right way to do it, we just can't recommend it publicly!
The 3.6, V6 AFM is a double overhead cam engine and the afm is done in the rocker arms. They have been trouble free.
Yepp definitely less problematic than the others!
2021 GMC Sierra 6.2 Lifter failure at 22,000 miles.
G - So sorry to hear this.. Very sad what these "emissions" systems are doing to new vehicles.
Really??? I just bought a 21 GMC AT4. 6.2. With 59k miles. So far so good.
@@George-on3zm Keep up on Oil changes. I have heard that this helps the cause.
G - Absolutely.
My brother-in-law has a 17 Sierra, cousin has an 18 Sierra and my dad has a 15 Silverado. Hardly any engine problems with the 3 of em combined.
T - Nice! Do they have any upgrades?
@@8020Media No, my dad's is a company truck. Only upgrade that was done was my cousin's tires. He's got bigger tires on his.
T - They must take great care of them! Thanks for sharing these.
When will the Boost AFM/DFM Disabler be available for 23-24 Sierra 1500 models?
R - We are working on it, but don't have any updates on this as of yet.
How do we order this ? Have a 2018 lfiters failed and replaced and dont want it to happen again.
A - So sorry to hear! We have a link in the description, but here it is for ease: www.amazon.com/dp/B0D1T1FMJK?maas=maas_adg_2CDE464277A6404D470A623F0084F062_afap_abs&ref_=aa_maas&tag=maas
Had a 2021 suburban fail at 8k
J - Wow.. So sorry to hear this. Lifter failure?
Yep, took out the cam, and bent valves and push rods @8020Media
J - That's crazy... They definitely don't make them like they used to.
Will the little afm devices work in 2006 gmc sierra 4.8?
M - Unfortunately, our device isn't compatible with your 06 Sierra.
I see the boost isnt shown as compatable for the 2023 / 24 Silverado 1500... Does it work for them also?
It does not currently work on 2022 refresh, 2023, or 2024 Silverado or Sierra's. We're working on one but aren't sure when it'll be ready yet!
@@8020Media Thanks! From your experience are there many issues with the 2022 refresh 2023 models? 6.2l. Cheers
G - It's honestly too early to tell.
You don’t make these for 2023-2024 Models with the 6.2?
L - Not currently, but this is something we are seriously looking into.
Look faster. 2023 5.3L here. Id like my V8 fulltime please.
L - lol, we wish it was that easy. But will keep you updated.
@@8020Mediai just got a 21 GMC AT4. 6.2. 59k miles. So far so good. Wonder if i should pusrchase this ?
Another '24 5.3 owner waiting for release of a compatible delete module.
Have a 21 GMC. With 6.2. So far so good.
G - Nice. How many miles do you have on it?
@@8020Media 60k
How many miles u have on it
G - Thanks for sharing your experience.
I bought a new 14 v-6 Silverado not knowing about the afm. I felt it kick in and knew it was not good for the engine. I only had to add a small amount of pedal to get it back to firing on all 6. I bought a afm delete that now prevents the afm from kicking in. It plugs into the port under the dash with no modifications. It does have a constant drain on the battery so for l/t storage just remove it. Well worth the $$$.
Yepp, that's the best way to do it. If you want a device with less drain, our Boost device only pulls 0.71mA of power while turned off. Range's device pulls up to 6mA and usually sits within 2-3mA so theirs drains battery way faster than ours does.
@@8020Media I will vouge for that.
B - Yep... That's why we took the time to make a competing device that's cheaper and addresses their faults!