Disable Active Fuel Management / Displacement on Demand Without A Delete Kit? | Good Idea?

Disable Active Fuel Management / Displacement on Demand Without A Delete Kit? | Good Idea?
Tools and parts I use in this video (may be an affiliate links):
Range Technology RA003B AFM/DFM Disabler-Blue
amzn.to/3BLQDwL
Tools & parts I use in this video (affiliate links):
SWAP LS ENGINES INTO CHEVELLES & GM A-BODIES: 1964-1972 by Jefferson Bryant: amzn.to/3BGQvwZ
How to Build and Modify GM LS-Series Engines (Motorbooks Workshop) by Joseph Potak: amzn.to/3vmGzrJ
GM LS-SERIES ENGINES: THE COMPLETE SWAP MANUAL also by Joseph Potak: www.amazon.com...
CHEVY LS ENGINE CONVERSION HANDBOOK by Shawn Henderson: amzn.to/3H7tMLY
East Coast Classics: DISPLACEMENT ON DEMAND - DOD, Repair Cost and Return on Investment. Chevy Tahoe Collapsed Lifter: • DISPLACEMENT ON DEMAND...
TWA Motorsports: How to Remove DOD (Displacement on Demand) or AFM (Active Fuel Management): • How to Remove DOD (Dis...
Jovani Dante Griego: 2007-2014 Chevy Truck Cam swap / DOD (AFM) Delete: • 2007-2014 Chevy Truck ...
The Driveway Engineer: Back to Basics HP Tuners LS Swap initial start tune how to: • Back to Basics HP Tune...
Intro Track
Track: ROY KNOX - Blue Eyed Demon [NCS Release] Music provided by NoCopyrightSounds. Watch: • ROY KNOX - Blue Eyed D...
Free Download / Stream: ncs.io/BlueEyed...

[@oldpete3153]

I've had the Range unit on my 2011 5.3 for six yrs and no problem.

[@danieltaylor4819]

I just traded in a 2011 5.3 Silverado. Had 99000 miles on it, ran perfect with no lifter issues. In fact, I didn't even know it had AFM on it until I looked up the original sticker and determined that it did. I purchased a 2021 5.3 Silverado and now I'm concerned since reading all the stories about lifter failure. Not sure what to do now, get the Range plug in device, or just drive it and hope for the best.

[@oldpete3153]

@daniel taylor a very good friend of mine bought a new 2016 and at about 65,000 miles it started to tick. Into the dealer and $9300.00 later he got it back. I saw the invoice with all the parts needed aside from the camshaft. Needless to say he had a Range unit on the way before the job was done.

[@Corsairforu]

@@danieltaylor4819 I have it in my 2016 GMC I recently bought with 91,000 miles; I change my oil at 4,500 miles (appx 33% oil life left) not 7,000 miles (no oil life left) because of that system.

[@jamesbonini8853]

I deleted the DOD on my 09 chevy avalanche 14 years ago by having a new super tune installed writing it out of the program. 90,000 miles later 2024 not one problem. No work was done on the engine and it runs awesome. Gets 21 mph and gobs of power. I run it hard all the time. I paid $300 and never regretted it.

[@stephencarr7173]

This rambling presentation could be done in about 30 seconds. Plug in a disabler to your OBD II port. The vehicle will simply stay in V8 mode, and not enter V4 mode. No codes, No damage.

[@hardball107]

Ok, I understand what you are looking for and I think you're overthinking it a little. I lost a lifter at 6,200 miles under warrantee, the lifters and the whole top of the motor was replaced including the oil solenoids, direct injection fuel pump, piping and injectors, you don't want to pay for that. Bottom line when you look at a breakdown of a DOD lifter it works just like a normal lifter until it latches under oil pressure and is held collapsed. I have a 2015 Silverado and when it hit 100,000 miles I installed a DOD Eliminator into my ALDL (OBD2) port to disable the function, it cost 50 bucks on Scamazon. If the AFM lifters aren't enabled they don't latch and continue to act as normal lifters having no detrimental effect on the engine, they just sit there doing their thing coasting along. After 35,000 miles no problems, just a fraction less mileage. Benefits ? No lag as the engine tries to switch between modes, the transmission shifts smoother and slightly firmer, again no lag. Better response and just tighter operation, the engine just feels like it is happier and no weird operation when the AFM, hung trans shift and Stabilitrak are trying to figure what to do. The engine is returned to full V8 operation all the time.

[@DJAJ101]

Good insight on AFM! I got a 2023 Blazer V6 with the new DFM in it. I put a AFM/DFM disabler in the OBD port at 7,500 miles. Hoping it at lest prolongs the lifter failure for a couple hundred thousand miles at lest. Even if I have to buy a new disabler every few years it would still be cheaper than lifter replacements after the warranty is up.

[@belden007]

The comments in this video are more valuable than the video content.

[@slalomking]

That is normally the case

[@LukeHunt419]

Right! lol

[@scottsennsibaugh885]

I disabled mine 2 years ago and no problems. I used the Diablo Sport 2 tuner and added a performance tune and very happy with the results. All software reprogramming. Didn't have any lifter issues prior or after.

[@scottsennsibaugh885]

Forgot to mention it's a 2007 Chevy 5.3 with now 209,000 miles and no issues. Had 190,000 when I did the reprogramming 2 years ago.

[@ちくてぬしくけて]

I do a lot of deliveries in my 2011 suburban lt 1500 and I bought a range technology ra003 for it. It now has about 378k miles on it, and with normal maintenance, these things last a long time! Maybe my LMG is a rarity, but it has the original rear end, original transmission, and original engine with original afm lifters. I guess it depends on your application. Obviously for an all performance engine, I'd also get rid of afm.

[@AmateurHourGarage]

Ya. Get the disabler on the vehicle early and it seems to prevent failure in the long run, as you have seen. I put my range disabler on my used suburban at 80K. I hope it was early enough.

[@wernergarcia6820]

Hi , ahh is that a plug and play device or it needs programming or any other stuff, thanks

[@kcadventure-m3u]

@@wernergarcia6820plug n play

[@blackened300a]

My thoughts is that the constant pressures on the lifters going from V8 to V4 is the cause of the failures. Moving parts wear over time and when you’re putting pressure on a spring to release tension and then reapply tension constantly, you’re wearing that part out prematurely. Disable the feature and the springs keep constant pressure which means less moving parts that are prone to failure.

[@ChevySS1968]

Seems like a crapshoot either way. AFM has lots of failures. However, in my 2010 6.2L Escalade EXT, I have simply plugged in a 'Range' AFM disabler...... and .... I am changing the oil/filter ~3k miles, which may seem like overkill, but I firmly believe the vast majority of AFM issues would never occur if owners were absolutely diligent about keeping fresh, clean oil running through the system.

[@AmateurHourGarage]

Keep me posted. I would like to hear how it goes for the long term. KZbin is full of folks disabling with AFM/DOD. The problem is they rarely come back with an update.

[@ChevySS1968]

@@AmateurHourGarage - sure thing. But I'm not a good test, 'cause this is not a daily driver, it's a 2010 and it only has 10k miles on it. It's like brand new inside and out; engine internals (looking thru oil fill cap) look and smell very clean.

[@virgil3241]

@@AmateurHourGarage Ill give you an update, or you can read my original post as well? Which had questions that were not answered

[@markfritz6367]

agree 100% alot of failures are due to poor maintenance

[@thedude5258]

Mine had 63k with religious dealership maintenance records and the #4 cylinder lifter failed. A 2017 model.

[@carltiefenthaeler5763]

2017 silverado 5.3 engine. I've had the range Disabler 6 months after my new purchase, with zero problems. I purchased 8 cylinders for a reason, I don't want 4 or 6 simple. GM needs to Add a switch to let the consumer decide how he or she wants to run their vehicle. This way, they still abide by government standards !

[@nv1493]

For years I've had a Range Technologies OBD plug-in to disable the stupid AFM on our 2011 Silverado 5.3. No issues at all, its at 120k miles currently. The only thing I have to do is unplug it before state inspection to allow all monitors to complete a drive cycle. For some reason it will prevent a couple of them from doing this, but you'd never know without using a scantool. Zero driveability issues, never a CEL. Been very pleased with this simple solution. As far as I'm concerned, GM should be sued for ALL years that had this garbage installed.

[@JovaniDanteGriego]

Hey man! Thanks for the mention! I've seen this topic come up a lot on various Facebook groups and I think my general opinion is this: I've seen and heard of engine failure caused by AFM at as early as 50k miles. So when asked the question of whether or not someone should by a Range obdii device or similar to turn off AFM I ask how many miles they have. My general advice is if its less than 100k disabling AFM via tune may prolong the life of the engine. For how long? Who knows. But without getting too technical I believe the main issue is the physical lifter design of the AFM lifters is the issue. As stated earlier people as low as 50k miles have reported lifter failure, I for example made it to right around 200k (hard miles) without them failing. So it's really anyone's guess as to whether or not a software delete would be effective. Now if I were to buy a let's say 2009 suburban with 200k on it, well of the engine hasn't been replaced yet I might just consider doing the hardware delete. One thing I want to point out Incase anyone goes to my video from this. The BTR NSR cam I used in the video is discontinued and I believe for good reason, my engine ended up knocking maybe 10k miles after this, now I'm not blaming BTR it could have been my crappy tuning skills but I'll leave it at that and highly recommend the Texas speed kits that include a stock replacement cam. It simplifies the install for the every day Joe. My final note- There's an expression that gets thrown around the LS world called "letting the magic out" whenever you open up these engines. I have first hand experience where after that heads come off, dirt debris and sludge tend to fall into the orifices. This ends up become bearing wear or potentially rod knock later on. So if you attempt this yourself keeping the engine inside the vehicle, be very clean, get a shop vac And suck up everything before removing the heads.

[@mathewg1747]

The short answer is yes. That’s because the computer tells the engine when to activate AFM, so all you have to do is rewrite that portion of the code essentially. That means the system will never activate and you are left carrying hardware under the hood you won’t use.

[@520dblock3]

Smh, thank you for your research. I have a Lc9 engine and I was going to do this for a swap, but after hearing this, I think I'll go another route. I don't even know how much this will cost to do this.

[@roudyforr4962]

God Bless you Bud for such detailed info! Thank you.

[@trentspearman3165]

I bought a 2021 LT1 Camaro and I decided to do a cam swap. I bought a stage 2 cam kit from Texas Speed and it required the DOD delete kit. I installed the cam and did delete kit and had to pull the heads, intakeand front cover off which was a good bit of workin the camaro. I swapped the lifters and installed the valley cover plugs. So yes I would say it would be the best idea to open the engine and replace the lifters because the way they are made they can still break down when the AFM has been disabled. So my engine runs great without it I don’t think they should have ever used AFM.

[@sschevmale24]

I have to find a good shop to do this on my 20 6.2 silverado

[@xxedelbrockxx]

I just bought a 21 LT1 Camaro as well, and installed a Amazon AFM delete via OBD2. It only has 19k miles on it but I will also probably do the stage 2 cam from Texas speed and delete kit once my warranty is up

[@sampsonramm6630]

The DOD can be disabled by simply driving in manual range in l5 (6speed) or l7 (8 speed). The DOD is only enabled in the top gear of the transmission. You can also use a DOD disabled that you leave in the OBD2 port while driving in normal automatic mode. As soon as the disabled is removed from the OBD2 port, DOD is active again, so no permanent software change. All of that said, there IS ANOTHER valve train problems these engines have that makes it imperative to open the engine and install reputable aftermarket (non GM parts). The other problems that is occurring is the lifters turning 90 degrees in the bores. So now the roller is NOT rolling on the cam, but running perpendicular to the cam lobe. That produces a loud squeak / knock and will destroy the cam in short order. I am currently suffering this exact scenario...

[@AmateurHourGarage]

I have the DoD disable plugged into to the ODBII on my 2019 Suburban

[@Jakesflyingv]

As far as I understand it, its the action of using oil pressure to activate the afm that is failure prone. Having low oil pressure or inconsistent oil viscosity from dirty oil etc causes the lifters to hang up in between either mode and causes the tick. This makes me think that just disabling with software to prevent afm from activating should prevent failure really well. I unplugged my oil pressure sender when i got my truck until i could get a disabler and have since just been too lazy to buy it…. With no oil pressure reading to the ecu AFM is disabled.

[@pauljoseph2178]

Installed the range technologies disabler. Haven't had an issue at all. Vehicle feels better. Could give 2 shytz about the gas mileage? I didn't buy an escalade for economy. I bought it to keep my wife safe driving around these road raging idiots. Stay safe out there.🙏

[@ujmrider]

I have a 2011 Suburban with 5.3 AFM engine and 6 speed trans. The way I keep it from running in the AFM mode at any speed or conditions is this - select M with the shifter, then use the +/- buttons until the display shows M5. It drives completely normal but never goes into 6th gear and always stays in V8 mode. Simple, nothing to buy and no work to do. Barely affects fuel mileage. Vehicle is currently at 258k miles, and uses very little oil and not fouling plugs!

[@MyMoe9]

But do u keep it on m5 at highway speeds, 65-70 mph etc? If you do isn't that bad for the tranny?

[@justinweng5079]

I have the range AFM disabler and it’s working great for me. No more v4

[@AmateurHourGarage]

Mm... for now.. ;)

[@justinweng5079]

@@AmateurHourGarage yeah. So far so good. I guess if it screws up that gives me a reason to get an aftermarket cam lol

[@jeremyhuntington1]

@@AmateurHourGarage ran a range on my last engine for 350k. Just put a new engine in because the last was getting tired.

[@DJAJ101]

@@jeremyhuntington1 Nice, no lifter failures for those 350k I'm guessing?

[@jakurt9458]

I have a 2012 gmc sierra 5.3. I disabled mine about 1.5 years ago with Diablo predator tuner. no problems so far.

[@AliAlhussaini]

How much does the whole process cost

[@jakurt9458]

@AliAlhussaini its just the cost of programmer.

[@acef_performance8416]

My dads 2009 silverado had lifter tick, we drain oil, put in diesel and ran truck at idle for 15 minutes, drained diesel, put new oil in and couple days of driving the lifter fixed itself

[@AliAlhussaini]

It will happen again

[@joerecio7172]

My 2015 Suburban has AFM. It failed right after a recall fix. The dealer diagnosed it and it would cost $3000+. Also they wouldn’t delete the AFM. I installed software and have not any problems for over two years.

[@weloveups831]

Bought an obd unit from summit to disable afm. 300k later an going strong. Change oil every 4 to 5k

[@shawng7902]

Ive been through both now. My truck is a 12. Had it since 14 with 30k. It has 70k on it now. Has never been ran hard at all. I used a duablo at 40k to disable the afm. It did fine and ran fine for 30k. It started to get a very light tap. Only I could hear it apparently. I went wild with full AFM/VVT delete. Used BTR 302 truck torque cam and a few other good parts. With parts on in and diablo it ran about the same other than cam signal. After a day on the dyno with HP tuners it feels like a damn hot rod. It runs and drives like a totally different vehicle. It would snatch a trailer out from under a load now. BTR claimed around 40/40 gain. Mine was closer to 20/60tq gain. Now I have to pull pan to delete that relief valve. Tuner said they have had huge oil pressure issues with that valve after delete sticking. Mehling says they cause oil consumption issues.

[@luislopez9646]

Crazy,my wife's 2017 Ford Edge has a switch to turn on or off the Flex Fuel. Easy peasy.

[@adubbelde1]

I have an L83. Im putting it in a 37 Chev PU. I ordered my wiring harness from Speartech. They reprogrammed my computer and deleted AFM. I have't driven it yet, but I've started and run it and it's smooth as Glass. Motor has 100,000 miles.

[@AmateurHourGarage]

The jury is in, even if you disable the AFM/DOD eventually it will fail. Best to delete it IMHO.

[@alanmorrison3598]

One thing not talked about much is that non-AFM lifters are also prone to failure! Over-time perhaps with less than optimal maintenance and or performance mods and aggressive driving, the clearance between lifters and lifter trays increases to the point that the roller/lifter can rotate from it's proper position enough to cause roller/cam wear and eventual failure. This could be a problem with any engine with roller cam followers. A concern I have with AFM disable is that over-time, could non-use cause varnish build up on the lifter internal sliding parts causing the lifter to jam in the collapsed position if it were to ever be re-activated even for a short period?

[@SVTCO]

That's a really good point! This to me is why choosing the best oil possible is critical. I agree, if you disable it, better make sure it stays disabled at all costs.

[@danielbonner8309]

I heard that's how a lot of them fail, being inactive and then activated. Makes sense.

[@grabbergrabbs1]

even with the AFM disabler activated, there are still oil flow into the Hydrolics lifter.. the high pressure oil that is used to compress the pin do allow the lifter to disengage is not there of course, but you still have oil passage that allow the oil to move inside the lifter. No worries at all with the Range AFM disabler.. this has save my engine Im sure. Cadillac CTS 2017 here.

[@jackofspades24]

I disabled my afm on my avalanche 2 years ago after having a lifted collapse. Haven had an issue since. If you get any gm vehicle with this option get it disabled asap.

[@markmiles9581]

Running plug-in unit to disable the AFM on my daughter's Yukon, 213k miles and no issues.

[@robertwhite1416]

Drove my 2015 Camaro SS L99 with DOD disabled by scanner almost since new for over 100k no problem. And oil changes were done at around 10k. Car was fine when totaled by Hurricane Ian. Only the Trans was a POS.

[@Skrewstoned]

bought my 2008 silverado 5.3 with 90k and some light mods(no cats/cold air) the previous owner had it tuned after the mods and removed the afm. i have had it since then and added another 70k miles so im around 160k..... finally i got a lifter issue drivers side bank cylinder 1. im now in the process of ripping her open and taking all the crap out and installing the delete kit and possibly the cam. fun fun fun. if its a newer motor i suggest turn it off. keep changing the oil regularly and get to buying the parts for dod delete and tuner anyway. the motor is solid but that BS DOD/AFM system is trash.

[@shiftymg3590]

Buddy, no need for a case study. The engine in made for full 8cyl. Function wether it be all time or DOD active. Once you disable through OS, all you did is maintain constant operation of those components to those cylinders that would otherwise be switching on and off.

[@billylongley9580]

I put my 2016 Yukon transmission in m5 manually no problems

[@PoisonShot20]

Oil changes more frequently, say every 5k instead of waiting for the "Change Oil" comes up on the desh screen, will delay the lifter failure? Just wondering!

[@AmateurHourGarage]

Full synthetic as well. Consider a ‘range disabler’: amzn.to/46IfTkF

[@raulrojas5594]

I have 2009 truck with ls enginedeleted it with a tuner about 13 years ago never had any prblem

[@cessnaflyer]

I installed the range technology device in a 2016 corvette and haven’t had any issues. Although I’ve never heard of a corvette having AFM engine problems, I just didn’t want to take a chance.

[@JoeWilly69]

Holy crap! You sound exactly like me word for word!

[@blt2drive492]

My E-Rod LT 1 has the hardware mechanically, but does not have the function in the E-Rod ECM.... (?) 🤔 And it came with a warranty programed that way.

[@mtjeeves1234]

Depends on which engine we're talking about. I've seen some pretty good success with the AFM shut off chips on the Gm 5.3 if it's used early enough. I haven't seen any success in that area with like the early 5.7 dodge models.

[@danielsmith8659]

There have been folks successful with the dodge as well. Same thing though, done early .

[@mortalitydriven4145]

From experience….I disabled DOD lasted couple years…then I had “catastrophic” failure when my lifter failed, shattered my rocker spring, dropped valve into piston…which destroyed my crankshaft…rebuilding as I type this🤦‍♂️🤦‍♂️🤦‍♂️

[@AmateurHourGarage]

Wow sorry to hear that. Yep, seems to be the consensus, have to delete it.

[@Saveamerica0000]

I have a C7 corvette thinking about a complete AFM delete $ 3200 for the job. new lifters and cam

[@cessnaflyer]

After much research and talking with numerous corvette service center guys, I have never heard of an AFM equipped corvette of having a problem.

[@reyperez3424]

I got my 07 DoD disabled since new but it had lifters and camshaft issues after 4 years and 60,000 miles and dealership didn’t fix , I still had warranty. Ended up getting a 6.2 and still have the 6.0 with the delete DoD and new valve springs and camshaft

[@AmateurHourGarage]

Ya. It seems the consensus is that the DoD needs to be deleted from the engine. Disabling is not enough if you want your engine to last long term.

[@markturner7825]

Good information, Thank you. I used a plug-in disabler trying to avoid lifter failure on a 2016 Silverado with 140K miles, it failed with the disabler connected within 1000 miles. I don't think the disable induced the problem, however, it didn't prevent the collapse.

[@AmateurHourGarage]

Yep, your story is not uncommon. It seems that the DOD has to eventually be deleted.

[@haroldmyers4064]

Was using the disabler on my 2011 for a couple of years. Lifter just collapsed with only 81k miles. Ordering a complete kit with new cam and everything $995 just for parts.

[@fastbuick11]

To disable the AFM (DOD) in the ecm by using HP Tuners does nothing to engine's inability to function. The engine by design are made to run on all 8 cylinders by the engineers of GM. You are thinking too hard about it. The afm coding for the 4 cylinder mode is an add on to ecm's software forced by the government. Its common sense how engines work. The Engineers brought on software to control engines, then governments brought on emissions, save gas ect... you know the deal. The springs, oil solenoids and valves in the valley cover are only activated by the ecm's software coding. Stopping the coding "Disable" in HP tuners you are just stopping the action of AFM. There is no need to buy a delete kit which is just a lifter kit. No such thing as a delete kit. Just removing parts and replacing with parts that already exist in other cars and truck/suv. All or most people doing the procedure are just modding the engine for more performance. If you use common sense the vehicles run great when in 8 but fail in v4. DISABLE DISABLE DISABLE. and don't forget to not report code in DTCs

[@noe_9568]

So I don’t have to buy no damn kit? Just disable the AFM and that it? I just bought a 2010 Silverado and oil pressure is kind of low.

[@NORCALPYRO_]

So just disable it??? And what u mean disaable the dtc codes also if i disable it dtc codes will pop up

[@sschevmale24]

@@noe_9568 depends those lifters start to mushroom and will damage the camshaft, lifters, pushrods and can fuck up the block. If you disable the afm or dfm early in engine life you should be ok. If you have 50k or more id change the lifters, check pushrod and since you have it off change camshaft too.

[@rogern5368]

@@noe_9568 one symptom of the AFM system failing is low oil pressure but it would be accompanied by a lot of lifter noise and clacking sounds if it failing. If it is fix it now because it can destroy an engine. Good luck

[@m.w.6607]

I agree with this. Those who remove lifters show the latch pin damage to the lifter's shelf and pins themselves. I don't see how stopping the switching events with a disabler (keeping the lifters static) could do anything but prolong their life. Not sure how you could blame "catastrophic damage" on keeping these lifters engaged like normal lifters. Stop AFM now and prolong your lifters would be the logical thing till proven otherwise

[@kenabi]

from what i've personally seen, its the springs. and no amount of turning off the AFM in the computer(s) is going to stop a mechanical failure from something used all the time with said feature off. best to just delete and be done with it.

[@AmateurHourGarage]

Ya that seems to be the case. But SO MANY people think that just disabling it solves it.

[@virgil3241]

@@AmateurHourGarage So by disabling it or not, are people not having failures for 10 years because of what, magic or luck? or is this more of a I need to be right, and prove others wrong on the internet comment. Or is it just luck of the draw?

[@danielbonner8309]

​@@virgil3241Ya I haven't done anything to mine since new, 9 yrs 130,000 no problems but I'm kinda worried hearing about all these issues. I wonder how many people never have issues. To me if a vehicle can get to 200,000 without major issues that's great.

[@davidthompson5381]

That was a whole lot of nothing

[@barrypowell829]

Whew too much what if and what about. Do or don’t do. I believe that the best engine performance is in 8 cylinder. Having the disabled engine to 4 cylinder is a radical change. From an engine purring on 8 cylinder. Also that feature 4 cylinder, has caused accelerating oil consumption. I have the Range override plugged into computer port.

[@tommartin9612]

I wonder how it would affect California emissions testing??

[@matafdo123]

It is a good idea, the way it activates the DOD is by the increase oil pressure that the ls generation has.

[@AmateurHourGarage]

Ya, it seems one needs to disable the DOD early. Before any lifter problems occur.

[@grabbergrabbs1]

its completely safe to use the Range AFM disabler. 100%

[@humes4545]

That's readings teleprompter done right

[@bluephoenix383]

You just never really know when it's going to happen I have a 2016 silverado 5.3 got it brand new disabled the DOD a few months after I got it with a tuner. I got about 7 years and 140k on it now and the lifters are done. About time for a performance cam anyway I guess

[@AmateurHourGarage]

Yep. I hear there is a class action lawsuit a out this now?

[@aaronzavala4336]

What if I do a dod afm delete like non afm lifters pushrods and non afm cam basically regular afm delete but without tune would this work rather than just tuning it give me advice up in the comments it’s 5.3 gen 4 08 Sierra

[@AmateurHourGarage]

Do the OBDII gadget to stop the vehicle from activating the AFM/DOD is your best bet. If you do have a lifter problem now, have the delete professionly done. This is because an amateur job will eventually cause other problems with the motor. IMHO

[@aaronzavala4336]

@@AmateurHourGarage yeah that what I’m gonna do just have someone come do the afm delete professionally ima do the lifters different push rods and a non afm cam then that 3 bolt cam sprocket so it can read the signal form the front like the original cam has only one

[@vadam7407]

There’s some also some class action suits, but so far GM does not want to take responsibility!

[@xtonsoffunx]

10 minutes of repeating himself... save yourself the time.... no it's not a good idea... your welcome

[@calwolfe3094]

I added the Range Technology device to my 2016 Z51 Corvette with the 6.2 V8. I added it at 9800 miles and now have 14000. The V4 indicator never appears and the engine sound and performance is perfect. I am not sure why GM produces a 460 HP engine and wants to degrade the performance and reliability. Opppps, the answer is our wonderful Federal Government. You can always rely on those clowns.

[@AmateurHourGarage]

I added it on my 2009 Suburban. Keep your fingers crossed

[@jjohnson479]

If your buying an engine from another vehicle then you already have it out of the car. Why would you NOT go ahead and put in a DOD delete kit?? Kill the possibility of failure NOW. That way you don't deal with it later. I'm assuming if you are competent enough to make the engine swap, you surely should be able to put in the delete kit.

[@acef_performance8416]

Where can i read these books

[@AmateurHourGarage]

Kindle app

[@handgunner1500]

It is not a good idea to just disable the AFM bs. I've had a range technology disabler on my 14 L83 silverado since 2017. The truck has just under 54k. Number 7 lifter collapsed yesterday afternoon. The system is worthless and needs to be removed completely. LT engines are great, but they are ticking time bombs because of the stupid AFM.

[@NORCALPYRO_]

So dont disable it just run it till it fails then delete it and tune it

[@44hawk28]

I would vociferously argue that active fuel management is a step forward and engine design. It would be far more effective to operate the engine lean of peak on all eight cylinders and save more fuel without damaging the engine by shutting off four of the cylinders. Running an engine on 4 cylinders and having to push the other four cylinders around is not a way to save fuel. All it does is cause much more wear on the cylinders that are operating did relation to the cylinders that are not. You can't disable that system without any major issues, the problem with that is is that on these Gen4 engines the cylinders that are disabled, even when they're not disabled are operating at a different efficiencies than the other four cylinders so the engines not running right in the first place. I have no idea who thought of the idea of disabling for the cylinders on a V8 engine to save fuel, but they really should be made to marry my ex-wife. I don't even want that bastard dead. I want him to suffer for eternity! Just another stupid idea. But I might like to see is somebody put on some injectors, port injection only, get rid of the stupid GDI system that came out about 2014 or so. And try the 11 Port sprayer that came out on the 2005 Saturn 4 cylinder. I think that that could not only save fuel when it's running easy down the road way yeah it vaporizes fuel better because it's shooting through 11 ports instead of 2. It will give you so much better of a fuel burn that the engine may actually get better fuel mileage on all eight cylinders or at least as good as running the active fuel management. But I haven't seen anybody try that yet. It may be as simple as taking the caps off of the 11 port and put the 11 ports on the ends of the two Port injectors. Or just putting the different injectors on. The 2005 Saturn injectors are 12 ohm, I do not know what the ohms requirement is on the LS motor.

[@garystovall1902]

Common sense. I turn the DOD off all the time. The engine is made to run fine with it off or on ( until a lifter fails and one will with it on ). Think about it the factory turns it OFF more percent of the TIME than ON. The lifter can't stick down if it is not actuated. Now, they can fail other ways. The same as regular lifters.

[@RobertSmith-bh5cv]

My buddy just went through the failed lifter/bent pushrods/scored camshaft on his '99 Silverado 5.3 (his would be DFM not AFM). He luckily had the GM extended warranty and they replaced all his lifters, pushrods and installed a new cam. Funny thing happened: the jerky shifting and hunting engine (making up its mind how many cylinders to activate) is gone and it's running like it doesn't have DFM. I'm wondering if the dealer, who undoubtedly knows about the AFM/DFM issue (they had another truck in with the same problem at the same time) deleted the DFM either disabling the software or installing different lifters etc. It's so frustrating that this problem exists, and for so long, just to satisfy fuel economy requirements "on paper". It clearly doesn't do anything in the real world except cost the end consumer time, money and frustration. It's a really nice truck and until this happened, I was going to make one my next truck. Might have to look at F150's though I'm sure they have their issues too.

[@AmateurHourGarage]

Extended Warrenty for a 99’? Dang. Ford = ‘cam phaser’ = VVT variable valve timing problems

[@vadam7407]

Also found in 2014 to 2019 Corvettes. And I hate it

[@kenken-sr2vq]

Everyone get together file a class action law suit against the manufacturers of the DOD/AFM system. !!

[@alittletexasingeorgia]

Your right. You mostly don’t know what your doing, but your learning!

[@JoeWilly69]

I know this is an old video but I'm trying to understand the logic of buying an engine with dod? I bought one without realizing it, my bad but your eyes are open?

[@edwinhermanson8842]

My God !! Thanks for Nothing !!! Here is what I'm going to do actually have done. My truck at 20 000 miles I installed a Range Module to disable. Truck was running great no issues yet. Now I'll just hope it will be OK Period. Had I known earlier I'd have installed Range sooner but we shall see. Imo if you're not having any issues and have low mileage there is a good chance that disabling ONLY will be of great help.

[@JoeWilly69]

U still have the car?

[@edhughes6854]

My oil pressure sending-unit went out. Problem solved. Stays in V8 mode.

[@markgaertner5236]

In my opinion the video you just made was totally useless you did not give any information at all for the question he was asking if anything you just made more confusion for everybody do more research and come up with the answer before you put a video out like this again very very bad job on my opinion

[@virgil3241]

He doesnt want to seem to answer posts that have common sense, or people that say they have good luck for years.

[@Mash333]

Any and all engines may be susceptible to catastrophic engine failure. That single quote says nothing about the cause or type of a potential failure.

[@virgil3241]

So my question is, what's the difference from a software delete or using an AFM disabler, or just doing it by putting the transmission into Manual mode, which can prevent it from using AFM, unless you put it into Manual and the 6th speed. Even says in the manual you can do that, at least for my 2012 Avalanche I've had since new and has 175K on it and "knock on wood" no engine issues.. Which I use manual mode as much as possible. How can making your truck stay in V8 mode all the time be a bad thing? Its a V8 engine, so what's wrong with using all 8 cylinders al the time? There have been many videos and reviews of the Range AFM disabler and using it for years, and no issues. So whos right and whos wrong. Them, or you? Google reviews alone has a 4.8 average review out of 5 for 930 reviews. That many people cant be wrong? US and Canada average reviews, KZbin videos are all showing good results years later. Are you saying they are wrong, or causing engine issue that will show up years later?

[@danielsmith8659]

I think the general synopsis is that the lifters by design are prone to failure whether you delete them or not, but possibly sooner with all the swapping from v4 to v8. So disabling it electronically may allow you to get more life out of it prior to failure. I think if a lifter is stuck and you have damage , sure you might as well do the full delete while you have it apart, however , if you have had no issues, I do not think there is some mechanical threat added by deciding to use a range plug in device. I’m at 137k, 2014 sierra. Timely oil changes , no issues , that doesn’t mean it won’t happen …. But I have decided I’m going to buy a range and here’s why . I had my tranny rebuilt at 125k miles. Torque converter failure . Common obviously. Some say it is because of heat with the thermostat block not opening to the cooler until 194F… others say the torque converter doesn’t something special to prevent excessive vibration when cycling from v8 to v4 eventually leading to premature failure and the TQ coming apart and ruining the transmission. Both are right….. I’ve already put the GM TSB approved thermostat in my new tranny operating at 154F verses 194F . I bought a remand tranny from GM. No idea if it has a better torque converter or not… so I’ll assume not. By using the range plug in, I can keep my vehicle in V8 and prolong the life of my torque converter and ultimately the transmission. So that alone is a reason to do it…. Will my engine have a lifter failure eventually. It’s possible , but it probably happen anyway whether I disabled AFM or not .

[@virgil3241]

@@danielsmith8659 Very true, I also think it maybe how people treat their trucks compared to others, or as simple as synthetic oil vs convectional. Ive been using synthetic for a couple decades now in all my vehicles. In Canada, we can get temps as low as -40 i the winter, to +40 in the summer. I like synthetic for winter due to it flowing better for cold engine starts. Am I wrong, who knows, IM not a mechanic. Ive also never been stranded on the side of the road or had engine issues for 20 year plus, so I must be doing something right. I do admit, adding the AFM disabler has done more than just removing the V4 shudder, etc. MY truck is more responsive, I dont have weird downshifts at low speeds, and I don't have excessive shifting either anymore, seems to want to stay in gear more. When you commute the same places for years you know how you vehicle drives. And the small annoyances I had with the AFM shift when I forgot to put it into M mode, are gone, as well as the weird downshifts I used to have when stopping for red lights at certain speeds. Live in a city with a lot of hills as well and not having V4 kick in is great as you come out of the hill. Is that science, or proof, or a fact. Nope, just me observing something from a truck Ive owned 10.5 years. Maybe having the AFM diabler is redundant, since I keep up on all fluid flushes and oil changes, and thats why Im having good luck with my truck. But that aside, the benefits of a better throttle response, less and better shifting, and not having to put it into M every time I drive, are all a plus for me

[@danielsmith8659]

@@virgil3241 personally I’ve never had an actual internal engine failure either . But I’m scared to death this AFM could be the first . I’m at 137k on my 2014 sierra. Same as you , regular on time maintenance with oem spec fluids. Glad to hear you have liked disabling AFM. Im going to give it a go. I just want to get the truck to 200k safely and without having to go into the engine .

[@virgil3241]

@@danielsmith8659 Im the same, but then I think, well Ive been using M mode for years, which disables the AFM as well. Whats the difference between that and the disabler? I assume theres more to it than that, but if M has worked all these years and nothing happened, why would this change?

[@danielsmith8659]

@@virgil3241 I hope you’re right

[@perrygibbons1816]

Long winded video, never got to the point 👉

[@AmateurHourGarage]

Well the consensus is, delete it sooner than later.

[@lordofreason549]

I did ecm only disable and no issues

[@danielbonner8309]

I didn't disable it and no issues.

[@davntelisha19]

Have to pull those junk lifter out buddy no good period remove and replace with regular lifters

[@MrBuddy7798]

ride till it taps then cam and lifer swap it

[@yodo6414]

Dude, this is common sense, period. Lol

[@David-li4uw]

Best idea is to not buy GM until they fix this bs.

[@sschevmale24]

Dodge and Ford have problems too

[@rogern5368]

@@sschevmale24 yup cm phasers filing ford idea. No dodge AFM DFM same deal no winning when .gov says do it

[@michaelfuller7635]

Depends on where you live and how you drive in my opinion. I live in the country and live 10 minutes from work. I don't put on high mileage or alot of highway miles. ... unless my wife uses it. 😮

[@michaelfuller7635]

I have a 05 5.3 how much of a job would it be to just swap engines.

[@jjohnson479]

Darn if you do: Darn if you don't: So why not put the kit in?? You have wasted so much time with your research!!

[@davidradziseskijr2096]

Just leave it in all v8

[@easyhangit604]

No help.

[@littlej3777]

Sorry you’ve study a whole bunch of nothing

[@fitzwilly7132]

You talked a lot but said nothing!!! Useless!!!

[@davidradziseskijr2096]

Just leave it in all v8