DFM disabler released

[Marky Dissod]

I wouldn't want someone to try to say that having the Range installed contributed to the failure.

1. Why would you even care what 'someone' TRIES to say?
1b. Which 'someone' are you concerned with?
1c. What if they try to say something you don't like, but they fail?
1d. In case we don't make it to '2', this is why I'd prefer the Range - quick connect, quick disconnect ...
quick disavowal

2. How does it make ANY sense, that disabling Cylinder (Valve) Deactivation,
would make it more likely to cause a lifter failure?
So far as I know, disabling Cylinder (Valve) Deactivation has never caused a lifter failure.
So far as I know, disabling Cylinder (Valve) Deactivation makes lifter failure less likely, and delays lifter failure.

3. No, I am not using 'the carbyte' or 'the range'.
I can tell y'all that 'the Range' is typically preferred by NYC cabdrivers / chauffeurs.

 

[KMeloney]

1. Why would you even care what 'someone' TRIES to say?
1b. Which 'someone' are you concerned with?
1c. What if they try to say something you don't like, but they fail?
1d. In case we don't make it to '2', this is why I'd prefer the Range - quick connect, quick disconnect ...
quick disavowal

2. How does it make ANY sense, that disabling Cylinder (Valve) Deactivation,
would make it more likely to cause a lifter failure?
So far as I know, disabling Cylinder (Valve) Deactivation has never caused a lifter failure.
So far as I know, disabling Cylinder (Valve) Deactivation makes lifter failure less likely, and delays lifter failure.

3. No, I am not using 'the carbyte' or 'the range'.
I can tell y'all that 'the Range' is typically preferred by NYC cabdrivers / chauffeurs.

“Someone” AT THE DEALERSHIP. I wouldn’t care what anyone else might have to say on the matter — I just wouldn’t want the dealership to try to say that the unit somehow voided the warranty (and that they therefore wouldn’t replace the engine). That’s all I’m getting at.

…And, to be clear, the current Range for these trucks has to be installed under the truck, behind the wheel liner (and so it’s not necessarily a quick install/removal like the Carbyte is). If I had the Range installed and my truck crapped out on me, I likely wouldn’t be able to remove it before it made it to the dealership.

Personally, I’m just looking to get some insight into the “liability” angle the dealership might try to take if my truck were to shit the bed with the Range installed.

 

[ShelbiTahoe]

I was just looking on their website and saw it available too. Went ahead and ordered one. Hoping it works. Anyone got one and using it?

How did it work out? And which vehicle did you get it for? We have a 21 tahoe P

 

[Antonm]

See quick google AI search link for Magnuson-Moss warranty act of 1975 below.

magnisun ferguguson act - Google Search

key point bold and underlined below;

• Protections
  The law makes it illegal for:
  • • Dealerships to deny warranty claims if a vehicle is serviced at an independent shop
    • Manufacturers to claim that a warranty is void or to deny coverage if someone other than the dealer did the work
    • Manufacturers to condition consumer warranties on the use of any original equipment part or service
    • Warrantors to void warranties on modified vehicles unless they can prove the aftermarket or recycled part caused the failure ...

 

[Scarey]

I bought a new 2002 tahoe shorly after 9/11. Best car/truck I’ve ever owned. Couple months ago I decided to replace it and bought a new 2024 tahoe 6.2. I was not aware of Dfm, never heard of it, not listed on the window sticker like some have said. Interestingly the auto stop/start is on the sticker. I like the truck, hate the Dfm. A complication that shouldn’t be on a normally aspirated V8. Would I have bought the truck had I known about it, maybe not. As I researched Dfm, Range came out with a disabler, the 007. Bought one and have been playing with it. The auto stop start is disabled but Dfm is only kind of. The biggest failure is the coasting mode. Dfm activates when you take your foot off the gas. Interesting in L9 Dfm still activates in coasting/0 cylinder mode. I know some people say L9 deactivates Dfm, not on mine. Purchased the Carbyte to see if it worked any better, and it does. Very early in my playing with it but clearly it does defeat Dfm in coasting mode. You do have to hit the 40 mph threshold for it to activate. The auto stop/start is defeated immediately. So until you hit 40 mph both the range 007 and carbyte work the same. After 40 mph the carbyte is the clear winner. It does coast longer, not the same deceleration rate as when Dfm kicks in but I think that can be an advantage, mpg, if you’re anticipating the rate of deceleration, be aware. My two cents.

 

[14point5]

I bought a new 2002 tahoe shorly after 9/11. Best car/truck I’ve ever owned. Couple months ago I decided to replace it and bought a new 2024 tahoe 6.2. I was not aware of Dfm, never heard of it, not listed on the window sticker like some have said. Interestingly the auto stop/start is on the sticker. I like the truck, hate the Dfm. A complication that shouldn’t be on a normally aspirated V8. Would I have bought the truck had I known about it, maybe not. As I researched Dfm, Range came out with a disabler, the 007. Bought one and have been playing with it. The auto stop start is disabled but Dfm is only kind of. The biggest failure is the coasting mode. Dfm activates when you take your foot off the gas. Interesting in L9 Dfm still activates in coasting/0 cylinder mode. I know some people say L9 deactivates Dfm, not on mine. Purchased the Carbyte to see if it worked any better, and it does. Very early in my playing with it but clearly it does defeat Dfm in coasting mode. You do have to hit the 40 mph threshold for it to activate. The auto stop/start is defeated immediately. So until you hit 40 mph both the range 007 and carbyte work the same. After 40 mph the carbyte is the clear winner. It does coast longer, not the same deceleration rate as when Dfm kicks in but I think that can be an advantage, mpg, if you’re anticipating the rate of deceleration, be aware. My two cents.

I have both (Range 007 and Carbyte) and my experience with our 2024 Tahoe matches your conclusions. I bought the Range when it was first released, pulled it and have the Carbyte in just for a couple weeks now.

 

[nick14226]

Great info guys…. I might have to try the carbyte myself and do the comparison. I never noticed DFM doing its thing before hitting 40 with the range, but I don’t think that happens very often, I’m over 40 out of the gate pretty much everywhere I go.

 

[Scarey]

Further playing with the carbyte device I have to give credit to Range. According to the note on their web site, when you go into zero cylinder Dfm coasting it slows as expected but with Dfm defeated it does not slow much, I mentioned that earlier. I’m in a modertly hilly area and when I drive down some of the hills with Dfm active, I control my descent by down shifting. With Dfm defeated I’m going down two or three gears more and rpm’s are continuing to climb along with the speed. I would seriously consider turning the device off or removing it if pulling even a moderate trailer load.

 

[KMeloney]

With Dfm defeated I’m going down two or three gears more and rpm’s are continuing to climb along with the speed. I would seriously consider turning the device off or removing it if pulling even a moderate trailer load.

Really appreciate your feedback, but I’m not following you with this part. If your RPMs increase going down hills, doesn’t that mean that the transmission is downshifting and the engine is providing braking? (If so, you’d want that when towing a load, no?) Hoping you can clarify this for me. Thanks.

 

[djensen9367]

I had the Carbyte unit for a couple of weeks and it worked great BUT it would not work with an OBD splitter and my Scan Guage 3. I prefer not to give up my scan guage as it gives a lot of information especially shows what gear i am running in. It is not that hard to run L9 and I already took care of auto start. I did check with scan guage and they could not see why it didn't work but no solutions from either company. So just an FYI if you use a splitter