Disable V4 mode?

hirdlej · May 7, 2016

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.

14silverado4.3 · May 9, 2016

I just bought the Range,

Cvincent · May 16, 2016

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........

20L8TSierra24 · May 17, 2016

I just bought the Range,

Shoot me a message when u get it and let me know how you like it

Cvincent · May 19, 2016

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 · May 20, 2016

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 · May 20, 2016

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.

fishrman · May 20, 2020

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 · May 20, 2020

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 May 20, 2020 by Grumpy Bear

CamGTP · May 20, 2020

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.

Grumpy Bear · May 20, 2020

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.

flyingfool · May 20, 2020

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!

no12nv · June 25, 2020

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 · June 25, 2020

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 June 25, 2020 by flyingfool

carnau · June 25, 2020

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 June 25, 2020 by carnau