Jump to content

Active Fuel Management - Delete?

SierraWarEagle

Recommended Posts

SierraWarEagle New Member

SierraWarEagle

Posted
Posted

I have a 2016 Sierra All Terrain, 5.3L

 

I have been reading some posts on a Facebook group, where several owners have had the AFM deleted so the engine runs V8 all the time. Some are saying that the AFM causes engine problems and/or oil to burn as it gets older.

 

My Sierra has 12,000 miles on it. I'm thinking that, if I decide to have it tuned & deleted, I should wait until after the 36K warranty is over.

 

What are your thoughts on this?

 

Thanks

15 Z71 Senior Enthusiast

15 Z71

Posted
Posted

I have a 2016 Sierra All Terrain, 5.3L

 

I have been reading some posts on a Facebook group, where several owners have had the AFM deleted so the engine runs V8 all the time. Some are saying that the AFM causes engine problems and/or oil to burn as it gets older.

 

My Sierra has 12,000 miles on it. I'm thinking that, if I decide to have it tuned & deleted, I should wait until after the 36K warranty is over.

 

What are your thoughts on this?

 

Thanks

I have thought this same thing also. And I have decided to just leave it alone. That way if I have any problems down the road it should be covered by the power train warranty. I know people who have 50-60 thounds miles on their trucks and have no issues and use no oil.
Donstar Senior Enthusiast

Donstar

Posted
Posted

I had 160,000 kms on my past truck and 20,000 on my current truck with no AFM issues. I only know I have it because I see the little green V4 once in awhile. Facebook and this forum can have some useful information if you are searching for solutions to a problem. Do you have a problem with AFM?

Rawyzf Senior Enthusiast

Rawyzf

Posted
Posted

Range device is your best bet, if you are worried about keeping the warranty.

 

Otherwise, custom tune so you not only get rid of AFM, but you also can adjust the shift points to give the truck better drivability.

 

Sent from my SM-G930V using Tapatalk

StillOffshore Enthusiast

StillOffshore

Posted
Posted

Don't listen to these clowns...they have zero idea about the active fuel management.

Here's what you will want to do:

1. Snatch that grumpy engine out of your truck.

2. Replace old sappy engine with a brand new big block crate motor built without AFM.

3. Drink a beer and be proud that you didn't mess with all this new fangled computer mumbo jumbo that will catch your truck on fire while your grandmother and orphans are stuck inside of it with your favorite dog.

 

You are very welcome.

Rawyzf Senior Enthusiast

Rawyzf

Posted
Posted

Don't listen to these clowns...they have zero idea about the active fuel management.

Here's what you will want to do:

1. Snatch that grumpy engine out of your truck.

2. Replace old sappy engine with a brand new big block crate motor built without AFM.

3. Drink a beer and be proud that you didn't mess with all this new fangled computer mumbo jumbo that will catch your truck on fire while your grandmother and orphans are stuck inside of it with your favorite dog.

 

You are very welcome.

Lol, that'd be a great solution, I like it.

 

 

 

Sent from my SM-G930V using Tapatalk

alsediri85 Enthusiast

alsediri85

Posted
Posted

Hi,

 

If you delete the AFM i would suggest to not think to get it activated back again.

 

This is what i've read in the HP tuner fourm

 

 

Sent from my iPhone using Tapatalk

FL335i Enthusiast

FL335i

Posted
Posted

60k on my '14. No issues with AFM. I think it shifts between 4 and 8 very well. Most of the time I need to look at the dash to tell what it's in. Clean oil and a good oil filter are key in keeping the AFM working from what I've read. That's why I make sure to run 0-20 Full Syn Dexos 1 approved oil and either a M1 or Wix filter. I have not even a thought about disabling this feature. It's a truck, not a SS camaro or Corvette.

StillOffshore Enthusiast

StillOffshore

Posted
Posted

I've honestly never even noticed it switching back and forth. Had it in my last truck as well. I do have to confess that I drive like grandpa everywhere. I doubt any vehicle I've owned in the past 10 years has seen past 2,000rpm. I also have stock exhaust and think those triple seals they market are the best thing ever.

Rawyzf Senior Enthusiast

Rawyzf

Posted
Posted

I had to have it gone, with aftermarket exhaust, you heard it switch and when active I had a helicopter in the back.

 

Sent from my SM-G930V using Tapatalk

FL335i Enthusiast

FL335i

Posted
Posted

^So did I when I first put my AFE cat-back on. However after that thing was on for a while and carboned up.... the helicopter went away. Even my wife who rarely rides in my truck noticed it went away. She cannot tell what modes it's in now.

 

Edit- Very happy with the AFE cat-back system after it carboned up! However I did get a MBRP tip instead of the Gaudy AFE tip which made me look like a wannabe diesel. I would buy the setup again.

AllTerrainX Enthusiast

AllTerrainX

Posted
Posted

I have a 2016 Sierra All Terrain, 5.3L

 

I have been reading some posts on a Facebook group, where several owners have had the AFM deleted so the engine runs V8 all the time. Some are saying that the AFM causes engine problems and/or oil to burn as it gets older.

 

My Sierra has 12,000 miles on it. I'm thinking that, if I decide to have it tuned & deleted, I should wait until after the 36K warranty is over.

 

What are your thoughts on this?

 

Thanks

I just use Manual mode when I city/suburbia drive and keep it in M7 mode. M8 when I am crusing the highway. Keeping it in M7 mode never engages V4 mode.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • AndrewF
      Scan Tool Recommendation

      By AndrewF · Posted

      I am in the market for a bidirectional scan tool so was hoping someone can help point me in the right direction. There are so many options out there it is hard to narrow down which make/model to choose.   I have always done my own vehicle work so looking to maximize capability with the scanner. Ideal price is $1k or less but would be willing to exceed if it opens up significant benefits.  Currently my 24 2500 is the newest vehicle but also have a few mid to late 2010s Subarus as well.    It seems that the Autel MP900 has a decent amount of features at a reasonable price?
    • C/K Man
      Silverado 4500-5500-6500 are they still being produced? Would have sold better as GMCs as well

      By C/K Man · Posted

      There was talk over the last couple of years that the contract to build these trucks between GM and International would not be renewed.  International moved production of all their other trucks besides the companion CV model out of the Springfield plant some time ago when they opened their San Antonio plant.  That left Springfield only building the Silverado Medium Duty, International CV Series, and some Express/Savanna long wheelbase cutaways.  International also put the plant up for sale some time ago.  This all answered my earlier question as to why GM and International did nothing with these trucks since they were introduced, as they had basically become a market 'placeholder' with a finite life.    The Silverado Medium Duty/International CV trucks were interesting combination of a GM powertrain, electrical system, and K2XX Silverado cab with an International chassis that was supposedly designed for a step-van type vehicle they never produced.  They were manufactured in International's Springfield plant along with the IH MV series initially.  When first introduced, there was much talk that the Silverado Medium Duty/CV would eventually get a gasoline engine option along with other upgrades and GM and IH would work on a class 6/7 joint venture truck.  This was before VW bought Navistar out, after that happened no more was said.  Draw your own conclusions...   About the time talk started that the GM/IH joint venture was not going to be renewed, rumors started that GM would develop a new line of medium duty trucks themselves.  The story is the new trucks will be part of the next generation HD's due in 2028, and will still feature a 'straight rail' chassis design that the current medium duty has.  GM views this as a desirable feature that differentiates their truck from the competition.  A gasoline engine option is also expected.  As the current Silverado Medium Duty remains in production until September 2026 and there is still a lot of inventory available do not expect any official word for some time.   I believe GM remains committed to their successful partnership with Isuzu, and all the LCF models will still be available from Chevy Commercial dealers.  Isuzu is on the cusp of opening a new large plant in South Carolina and there is also speculation that this may result in new product for both Isuzu and Chevy Commercial dealers.                  
    • davester
      push to talk button

      By davester · Posted

      drive the truck back to the dealer and complain that the button works.
    • davester
      push to talk button

      By davester · Posted

      drive the truck back to the dealer and complain that the button works.
    • nfisherman
      Software Update

      By nfisherman · Posted

      I have a 2026 2500 HD Ultimate. My phone app says there’s a software update available. It’s something about improved battery management and something to do with the running boards. I follow the instructions for the update but the “Check for Updates” option is greyed out in my settings menu. Has anyone else seen this? How did you resolve it? The help message just says “see your dealer” if the download doesn’t work. I’m just trying to save a trip. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...