Jump to content

Disable V4 mode?

Cvincent
 Share

Recommended Posts

hirdlej Enthusiast

hirdlej

Posted
Posted

and you can remove it and reinstall it on the fly whenever you want/need to?

Yes, you can pull/insert it as needed while driving. I verified with Range that this is safe and won't hurt anything.

  • Replies 59
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

gmckenzie
gmckenzie

?????   It shouldn't.   BTW, I find the V4 mode less annoying since I started running mid-grade fuel.

Grumpy Bear
Grumpy Bear

For 115,000 miles my AFM has worked seamlessly and economically. No shudder, no weird noise. I leave it in D, use the cruise. Sit back and enjoy.    Why would I disable a device th

Rawyzf
Rawyzf

Range AFM device.   http://www.autoanything.com/performance-chips/range-active-fuel-management-disable-device?vehicleid=3525109&kc=ffprod&k_clickid=c67d1281-b925-4c78-a736-4ab98a2b11ef&a

Cvincent Enthusiast

Cvincent

Posted
  • Author
Posted

I set my screen so I could see the V4/V8 and sure enough, in manual shift mode (even when I leave it in 5th gear) it will shift back in V4 when there is no load on the engine.

So you guys are saying that mine is the only one doing this?

I guess I see another trip back to the dealership........

Cvincent Enthusiast

Cvincent

Posted
  • Author
Posted

I wasn't using M mode properly, now that I know how to do it correctly it does stay out of V4 mode. My problem with V4 is in my aftermarket exhaust it sounds like crap and I can just FEEL a big difference in how it drives when V4 kicks in all the time back and forth. It is very annoying.

20L8TSierra24 Senior Enthusiast

20L8TSierra24

Posted
Posted

It's not the same in M5 for me. Sure it stays out of V4 but my transmission acts like it doesn't know what to do. I get a loud clicking noise from 3rd to 2nd and 2nd to 1st upon decel. Upon hard acceleration it holds the gears longer than in D and shifts much harder.

Rkaroll953 Enthusiast

Rkaroll953

Posted
Posted

been using my range device for a year now works great. pull it out and v4 works normally like usual. just remember to pull it if you dont use the truck for like 4 days the battery will be dead. let it sit for the weekend u will be fine.

  • 3 years later...
fishrman Enthusiast

fishrman

Posted
Posted

Interesting topic now that the dealer tells me there is nothing they can do for my shudder issue. They tell me the shudder I am experiencing is due to the 8cyl., wanting to go to 4 cyl. when I first start up my vehicle after it sits for a period of time. I notice this at around 30 to 35 mph. After a short period of time, it will not shudder. I don't know why when it warms up some that everything seems as it should be. To me, there should be NO shuddering at all! I bought this 2017 Silverado brand new a couple of years ago. I only have 6500 miles on it and it has done this since day one. He tells me I can't hurt it and to drive it! Anyway, next vehicle may not be a Chevy!! Mine has the little button you can push for pulling a trailer. If I push that, will it then stay in 8 cyl. mode?

Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted (edited)

 

For 115,000 miles my AFM has worked seamlessly and economically.

No shudder, no weird noise.

I leave it in D, use the cruise. Sit back and enjoy. 

 

Why would I disable a device that has helped me average over 27 hand calculated lifetime mpg? 

?

 

 

 

 

Edited by Grumpy Bear
  • Like 1
  • Thanks 1
CamGTP Senior Enthusiast

CamGTP

Posted
Posted

There are always some trucks that don't run as smooth, that can be why people hate it and turn it off.

 

If I get the same freeway mileage with it off, why would I keep it on? My city gas mileage is complete garbage because of the short trips and AFM wouldn't have made it any better. Over 8,500 miles that I've put on it the avg mpg is 12.3. Even a few days ago I was doing some running around, not even trying for fuel mileage just bumming down at 60mph on the freeway, got 24-25mpg over about 100 miles with no AFM on a 5.3 with E30 in the tank too.

 

All this really is, is a personal preference. Even with it off the same failures can happen with the parts. Mileage may or may not suffer and for some they way the vehicle drives will be noticeable.

  • Like 1
Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted

My highway mileage is 10% higher with it active. Just say'n. 

If you run 75/80 mph everywhere I can see that it wouldn't matter. 

It's load based. It's on time would be small. 

I don't drive like that everywhere.

Actually, nowhere.

  • Thanks 1
flyingfool Senior Enthusiast

flyingfool

Posted
Posted

AFM works great with the 6 speed and  3.73 gears on z71 wheels and most importantly premium fuel.  these liittle motor needs as much torque advantage as possible . keep your speed under 65 and your making money!

  • Like 1
  • 1 month later...
no12nv Enthusiast

no12nv

Posted
Posted
On 5/20/2020 at 2:23 PM, flyingfool said:

AFM works great with the 6 speed and  3.73 gears on z71 wheels and most importantly premium fuel.  these liittle motor needs as much torque advantage as possible . keep your speed under 65 and your making money!

Mines in fulltime on my 2017. I've tested in an out hiway n city driving. Mpo is minimal mpg change if any but love the response with it in . I hate the up n down shift lag off. I feel at some point it will pre maturely wear my tranny out shifting so much.. just my opinion.. 

flyingfool Senior Enthusiast

flyingfool

Posted
Posted (edited)

if you dodnt like the AFM i think the 2500 K2 trucks  are un-equipt and might even run fuel injectors still. my 2012 model 2500 trucks shift better than my new 1500..

Edited by flyingfool
carnau Enthusiast

carnau

Posted
Posted (edited)
On 5/19/2020 at 9:40 PM, fishrman said:

Interesting topic now that the dealer tells me there is nothing they can do for my shudder issue. They tell me the shudder I am experiencing is due to the 8cyl., wanting to go to 4 cyl. when I first start up my vehicle after it sits for a period of time. I notice this at around 30 to 35 mph. After a short period of time, it will not shudder. I don't know why when it warms up some that everything seems as it should be. To me, there should be NO shuddering at all! I bought this 2017 Silverado brand new a couple of years ago. I only have 6500 miles on it and it has done this since day one. He tells me I can't hurt it and to drive it! Anyway, next vehicle may not be a Chevy!! Mine has the little button you can push for pulling a trailer. If I push that, will it then stay in 8 cyl. mode?

Check out the Range AFM disabler. ( https://amzn.to/37ZYQgJ ) I am actually doing a review video on it now. I hate to send it out because it's still not complete and private at the moment. But if you're interested send me a privcate message and I will give you a link. I will upload it here when I am completely done with it. Should be this weekend when I am done and have it completed. 

Edited by carnau

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Keith179
      Cold start Miss, oil in cylinder

      By Keith179 · Posted

      I’m out of ideas on this truck. 2020 Silverado 1500. 5.3 135,000 miles. Has a p0308 and p050d codes. Smokes From exhaust when cold. Compression test passed. New plugs, wires and coil on cyl 8. Same issue. New coil on 8, no change. Replaced injectors, no change. Bore scope showed oil pooled on the piston after sitting overnight. Pulled head and had machine shop check it out. No cracks. Stem seals looked good, replaced anyways. He also ground valve seats. Put it all back together and still have the same issue. Bore scope shows oil on the piston again. Leaning towards maybe a cracked ring but unsure. Cylinder looked good when the head was off, no scoring or scratches. Any ideas on what else I should look for?  Appreciate the help 
    • HeronLeal
      2021 Silverado 2.7L – N232395310 – Can someone with GM dealer access check my VIN?

      By HeronLeal · Posted

      Just want to make sure it is covered by Special Coverage N232395310 Evaporative Emission Purge Pump 2021 Silverado 1500 Custom 2.7L L3B ~100k miles I'm getting DTCs P146B and P146F. VIN 3GCPWBEK2MGxxxxxx   I spoke to a person that works at GM and he said it is not covered after checking my VIN.   Is there anyone here who currently works for a GM/Chevrolet dealership and has access to GM Global Warranty Management / Investigate Vehicle History who could explain how the VIN eligibility is determined?   thank you    
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thanks for all that information, I might purchase one and see if it will work for me, if not they may let me return it! Yes for sure the tires are definitely within limit for my truck empty, and when I do tow I'll definitely make sure to raise the rear psi for the amount of weight that's going to be on it.
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      Yes exactly, more and more these days people/companies are afraid of liability issues so its easier just to say no rather than risk putting their neck on the line.    I will say with the Autel unit or when I used it last year on my truck, it wasn't like I could choose the 2025 model year or even the 2024 model year as that option was not there to manipulate the placard pressures but had to go back to 2023 or there abouts and then it showed up as an option, odd but that was how the software was then and I can't say one way or the other now as they throw out updates every so often. I still would talk to your tire dealer though to start with and they may do it for nothing but also they may have a comment on a better unit to purchase. All I know is that one of the large tire shops in my area happens to use these Autel units for their use and set them up to use the wifi and all of that jazz for constant updating because each tire tech has one handed to them by the shop but I just plugged it into my laptop to update it and yes if one is bought it has to be registered so you can get the link to do updates and then the unit has to be updated before its even used. I am not at all techy so it took me a bit but anyway just a heads up for anything you buy, most likely it will need to be connected to a computer to access the internet to have it updated to the latest software version before you can put it to use.   If your truck is near empty, those tire pressures you listed are a very safe upper range pressures to carry the weight, both the front and rear as I know they could be run lower yet with an empty truck. And if its a trailer and not some motorcycle your going to strap onto the front of your truck on a rack, you shouldn't have a need to inflate your front tires if your at 55 front already, its the rear ones that would need more air if you have much hitch weight. 
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thank you, I'll check that Autel scanner out and see if it will work for me! Ya I can see GM's point of view if they lower the psi set value for someone and the person sell's the truck and the new owner puts the factory tires back on then their could be liability issues cause the psi warning light wasn't coming on when the tires were under inflated for towing their load and then it might be able to be traced back to GM lowering it.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...