I installed the same device on my ‘24 GMC Sierra and have been pleased with the results. GM should consider removing DFM all together but glad Range offers a solid solution.
When I bought my 2022 RST Z71 5.3, it was when they determined AFM finally had to go. My truck came from the factory without AFM or DFM. I'm happy I don't have any of it. Everyone i know with a 5.3 has had lifter issues or needed a full motor replacement. The failure rate is way higher than GM states publicly.
The 2021 and 2022 models had a run during the hear of the infamous "chip shortage" where some of the V8s didn't have a functioning AFM or DFM system. So yea...no DFM issues. But not so fast...the DFM would not function because of electronic/tech reasons. But unfortunately those miserable AFM or DFM lifters are still in the engine. So while they don't function as designed, they are still present. Perhaps the lifters not constantly collapsing, reactivating, etc. will help prolong the life of these crummy lifters............................or maybe not. Time will tell but one thing for sure, you folks get a much better quality driving experience and for "free!"
You’re welcome. Yes, this keeps all cylinders firing by disabling DFM but it doesn’t disable “0 cylinder mode” whereby fuel delivery shuts off when coasting at low speeds (which I don’t experience very often). I’ve now had the truck for 6K miles-first 3K without and last 3K with the module. Haven’t really noticed any difference in fuel consumption (good or bad), but it could be because I babied the engine during break in period and have been running it much harder the last 3K especially after installing a proper exhaust. So, theoretically if I drove it the same before and after I might get better mileage with the module but can’t say for sure.
Range does say coasting foot of the gas does use the collapsible lifters to go into zero cylinder mode, however it’s not Dfm. Dfm also uses the collapsible lifters. Both modes share the same hardware, the collapsible lifters.
@@Everything-k3y here’s what Range told me: “The engine will still enter 0-cylinder mode while coasting at slower speeds. Contrary to what many think, this is not a DFM function. It’s actually the engine shutting off fueling, so the cylinders don’t actually fire. It’s not the DFM system turning on and collapsing lifters to prevent the combustion cycle.”
Correct, that’s exactly what they told me, zero cylinder coasting does not use the Dfm program but it does use the collapsible lifters to keep the valves closed in zero cylinder mode.
My 2024 GMC sits for weeks at a time. Do you think this will draw my battery down if I don’t drive it often? Definitely don’t want to connect and disconnect every time my truck sits.
Man everytime I get in my f150 since buying new in 2017 I push that stupid auto start button. Curious - is the DFM system still active even with tow/haul mode on?
@ the noise comes from the engine. I’ve seen others comment that it has to do with the zero cylinder activation. Was hoping the range module would eliminate that. Maybe it’s just on the 6.2s
@@Thatairlinepilotguy AFE 0FG-I spent a lot of time researching catback exhaust sounds before buying this one and felt it produced the best sound available.
@ great to hear! Exactly what I’m getting ready to put on my ‘24 6.2 trailboss. Installing the range DFM tomorrow when the unit arrives. Your video helped a lot, thanks!
@ I should have made a video about the exhaust mod. Install itself wasn’t so difficult, but removing the stock pipe wasn’t as easy as you’d think. 6.2 may be different, but the 5.3 pipe is very long with several bends that had to snake out the rear. American Truck produced a video that makes it look simple, but it is not. I eventually gave up and cut the pipe out.
Amen brother, these auto manufactures and the EPA are killing the industry. I wouldn’t have bought a new truck if I didn’t need one. Hope to keep this one forever because I can only imagine how much worse it’s going to be 10 years from now. I got this DFM Disabler to help make this motor last as long as possible!
I have a 2013 Sub LTZ 5.3 with 187k. Had the Range product since 40k miles and never had any issues. Motor runs like a champ giving to my son. Just bought a 24 Sub HC with a 6.2 and will put this on when it arrives.
@@markfrench3665 great to hear you’ve had good experience with these things. I’m hoping this module prolongs the motor life. So far so good, and I’ll keep posting updates along the way.
I hate to be the bearer of bad news, but that device will not prevent lifter failure. If you want to prevent lifter failure, you need to have your engine deleted of all that hardware and a tune installed so it doesn’t look for it. I just recently sold my 2022 Silverado 1500 refresh with the 6.2L engine. Although I didn’t have any problems with it because I really didn’t drive it much. I’m sure eventually I would. I currently own a 2024 Silverado 2500 diesel. None of that nonsense is on my truck however, all that emissions crap is on there so unfortunately there’s no way to get around this stuff.
@TheCarCrazyGuy I have my doubts as well, but am subjecting this truck to this test specifically to see if the module will help prolong the lifters or not. I’ll be posting updates every 25K miles (or until I experience a failure), so we’ll see…
@@ThePlotts I thought the same at first, but once I installed it I actually prefer this better-only takes 10 minutes and doesn’t clog up the OBD plug area.
With the 2022.5 refresh that extends to the 2025 MY, GM changed some things electrically so they had to completely redesign and re-engineer as their product could no longer do its job through the OBD port...
I installed the same device on my ‘24 GMC Sierra and have been pleased with the results. GM should consider removing DFM all together but glad Range offers a solid solution.
I agree!
When I bought my 2022 RST Z71 5.3, it was when they determined AFM finally had to go. My truck came from the factory without AFM or DFM. I'm happy I don't have any of it. Everyone i know with a 5.3 has had lifter issues or needed a full motor replacement. The failure rate is way higher than GM states publicly.
@@chrism1157 I’m so jealous! You bought at the right time.
The 2021 and 2022 models had a run during the hear of the infamous "chip shortage" where some of the V8s didn't have a functioning AFM or DFM system. So yea...no DFM issues. But not so fast...the DFM would not function because of electronic/tech reasons. But unfortunately those miserable AFM or DFM lifters are still in the engine. So while they don't function as designed, they are still present. Perhaps the lifters not constantly collapsing, reactivating, etc. will help prolong the life of these crummy lifters............................or maybe not. Time will tell but one thing for sure, you folks get a much better quality driving experience and for "free!"
Thanks for the video! Has your fuel consumption gone down since the install? So, this device will keep all 8 cylinders running all the time?
You’re welcome. Yes, this keeps all cylinders firing by disabling DFM but it doesn’t disable “0 cylinder mode” whereby fuel delivery shuts off when coasting at low speeds (which I don’t experience very often).
I’ve now had the truck for 6K miles-first 3K without and last 3K with the module. Haven’t really noticed any difference in fuel consumption (good or bad), but it could be because I babied the engine during break in period and have been running it much harder the last 3K especially after installing a proper exhaust. So, theoretically if I drove it the same before and after I might get better mileage with the module but can’t say for sure.
Range does say coasting foot of the gas does use the collapsible lifters to go into zero cylinder mode, however it’s not Dfm. Dfm also uses the collapsible lifters. Both modes share the same hardware, the collapsible lifters.
@@Everything-k3y here’s what Range told me: “The engine will still enter 0-cylinder mode while coasting at slower speeds. Contrary to what many think, this is not a DFM function. It’s actually the engine shutting off fueling, so the cylinders don’t actually fire. It’s not the DFM system turning on and collapsing lifters to prevent the combustion cycle.”
Correct, that’s exactly what they told me, zero cylinder coasting does not use the Dfm program but it does use the collapsible lifters to keep the valves closed in zero cylinder mode.
My 2024 GMC sits for weeks at a time. Do you think this will draw my battery down if I don’t drive it often? Definitely don’t want to connect and disconnect every time my truck sits.
@@MatthewFlint-v3p you may want to contact Range Technologies directly to confirm, but I don’t believe this module draws any power whatsoever.
@ I appreciate the response, will do. Thanks
What did you find out? I'm in the same situation@@MatthewFlint-v3p
Man everytime I get in my f150 since buying new in 2017 I push that stupid auto start button.
Curious - is the DFM system still active even with tow/haul mode on?
@@JP-ec8fe nope! This thing disables it at all times including that stupid auto start!
One thing I noticed is the oil pressure goes up when you accelerate and decrease when you start breaking. I thought it would stay at a constant rate.
its called RPM. higher rpm - more oil pressure. This happens even with v8's from the 60's era. Normal operation
I installed the range module on my 2023 Chevy Silverado trail boss 6.2 and when it goes to zero cylinder mode it makes a squeak noise
@@juancamarena6810 interesting, I don’t have that squeak on my 5.3. Is it coming from the engine or from the module?
@ the noise comes from the engine. I’ve seen others comment that it has to do with the zero cylinder activation. Was hoping the range module would eliminate that. Maybe it’s just on the 6.2s
@robbsgarage what exhaust do you have on your ‘24??
@@Thatairlinepilotguy AFE 0FG-I spent a lot of time researching catback exhaust sounds before buying this one and felt it produced the best sound available.
@ great to hear! Exactly what I’m getting ready to put on my ‘24 6.2 trailboss. Installing the range DFM tomorrow when the unit arrives. Your video helped a lot, thanks!
@ I should have made a video about the exhaust mod. Install itself wasn’t so difficult, but removing the stock pipe wasn’t as easy as you’d think. 6.2 may be different, but the 5.3 pipe is very long with several bends that had to snake out the rear. American Truck produced a video that makes it look simple, but it is not. I eventually gave up and cut the pipe out.
@ good to know. A buddy of mine owns a body shop, so we’ll throw it up on the lift and install at his place. Shouldn’t be too hateful for us.
@@robbsgarage "AWE 0FG" out of Pennsylvania...
I was seriously thinking about trading in my GX for this.
@@jongwoo do it!
@@robbsgarage checking measurements on the bed for my splitter and height for my garage at work. lol
Did you hear how good the exhaust sounded at Buttonwillow? Factory exhaust is too quiet, now it roars!
@@robbsgarage I don't remember it... you should have rev-ed it when you drive by
MPVI3 and some credits and this problems solved
These pricks are killing the V8...This is why I wont buy a new truck..Keep it,it does not save shit and I am paying for 8 cyls and I want them 24/7
Amen brother, these auto manufactures and the EPA are killing the industry. I wouldn’t have bought a new truck if I didn’t need one. Hope to keep this one forever because I can only imagine how much worse it’s going to be 10 years from now. I got this DFM Disabler to help make this motor last as long as possible!
I have a 2013 Sub LTZ 5.3 with 187k. Had the Range product since 40k miles and never had any issues. Motor runs like a champ giving to my son. Just bought a 24 Sub HC with a 6.2 and will put this on when it arrives.
@@markfrench3665 great to hear you’ve had good experience with these things. I’m hoping this module prolongs the motor life. So far so good, and I’ll keep posting updates along the way.
I hate to be the bearer of bad news, but that device will not prevent lifter failure. If you want to prevent lifter failure, you need to have your engine deleted of all that hardware and a tune installed so it doesn’t look for it. I just recently sold my 2022 Silverado 1500 refresh with the 6.2L engine. Although I didn’t have any problems with it because I really didn’t drive it much. I’m sure eventually I would. I currently own a 2024 Silverado 2500 diesel. None of that nonsense is on my truck however, all that emissions crap is on there so unfortunately there’s no way to get around this stuff.
@TheCarCrazyGuy I have my doubts as well, but am subjecting this truck to this test specifically to see if the module will help prolong the lifters or not. I’ll be posting updates every 25K miles (or until I experience a failure), so we’ll see…
Oh, hell no not doing this to my new Silverado 1500 RST.
why not?
I wish they would have left it as an OBD plug in.
@@ThePlotts I thought the same at first, but once I installed it I actually prefer this better-only takes 10 minutes and doesn’t clog up the OBD plug area.
why? the OBD port one drains the battery I hear. This newer one does not drain the battery.
With the 2022.5 refresh that extends to the 2025 MY, GM changed some things electrically so they had to completely redesign and re-engineer as their product could no longer do its job through the OBD port...