Disabling AFM
Thread Starter
Heel & Toe
Joined: Jan 2018
Posts: 24
Likes: 1
From: Tennessee
Disabling AFM
my 2014 stingray non npp has only 13000 miles on it,should i consider disabling the afm before i start having lifter problems? are there issues with these on new vettes? would like to know more before moving on to a after market exhaust. had a 2010 ZO6 and was always worried about the heads on it but never had any problems with it and drove it to 60000 miles and it was still running strong. any suggestions?
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
For what it's worth,I have no clue if AFM is problem but I dropped a valve due to a broken valve spring at 34,000
I now have tune out AFM , for the few miles a gallon its not worth it to me , I want a V8
Dave
Team Owner
Joined: Apr 2013
Posts: 26,227
Likes: 4,353
From: Chirper Island
Leave this particular problem behind.
Our Z06 LS7 issues aren't a concern for the LT engine.
Very few of of us have reported lifter issues for the 2014. I broke a valve spring at 80,000 miles, but I don't think I've heard of another case.
Our Z06 LS7 issues aren't a concern for the LT engine.
Very few of of us have reported lifter issues for the 2014. I broke a valve spring at 80,000 miles, but I don't think I've heard of another case.
Team Owner
Joined: Apr 2013
Posts: 26,227
Likes: 4,353
From: Chirper Island
Well, now I have heard.
However, I have spent 99.999% of Time in M. I have only rarely driven in D, and that was only to test out something someone asked here.
Methinks a broken valve spring is a weak part. Mine was cyl. #8.
However, I have spent 99.999% of Time in M. I have only rarely driven in D, and that was only to test out something someone asked here.
Methinks a broken valve spring is a weak part. Mine was cyl. #8.
Team Owner
Joined: Apr 2013
Posts: 26,227
Likes: 4,353
From: Chirper Island
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Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
It's more of a calculated choice than it is a recommendation. Many of us that have, and does own a "15-'17 C7 car with the A8 have had transmission and torques converter problems. In some cases many have reported that their car (including my previous '16) does much better when the AFM has been disabled. Mind you, this isn't all C7's in those years, and I have no idea what percentage of cars has problems. Many that have had problems, or in an attempt to avoid problems have bought the Range Technology V4 disabler. Just plug in into the OBD port, and no more V4 mode. I did, and it helped my '16. I now have a '19 GS with the A8, and have run the Range disabler since I bought the car. After owning one that had some issues, I ain't taking any chances with this one. The Range may not help one bit, but it may. I'm going to hang my hat on the "It may" catagory.
https://rangetechnology.com/
https://rangetechnology.com/
Last edited by Rebel Yell; Feb 11, 2019 at 01:42 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
It's more of a calculated choice than it is a recommendation. Many of us that have, and does own a "15-'17 C7 car with the A8 have had transmission and torques converter problems. In some cases many have reported that their car (including my previous '16) does much better when the AFM has been disabled. Mind you, this isn't all C7's in those years, and I have no idea what percentage of cars has problems. Many that have had problems, or in an attempt to avoid problems have bought the Range Technology V4 disabler. Just plug in into the OBD port, and no more V4 mode. I did, and it helped my '16. I now have a '19 GS with the A8, and have run the Range disabler since I bought the car. After owning one that had some issues, I ain't taking any chances with this one. The Range may not help one bit, but it may. I'm going to hang my hat on the "It may" catagory.
https://rangetechnology.com/
https://rangetechnology.com/
After reading all the posts about issues I disabled the AFM and have never looked back .. 39,000 miles and my trans shifts fine . Dont know if I ever would have had issues but did not want to find out
Dave
Team Owner
Joined: Aug 2007
Posts: 136,140
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Burning Brakes
Joined: Oct 2013
Posts: 1,122
Likes: 381
From: Southeastern PA
6th Gear
Joined: Feb 2019
Posts: 6
Likes: 1
From: West Central Florida
Range Technology AFM disabler
Good afternoon All,
I just installed the Range Technology AFM disabler and WOW! what a difference it makes. This thing works exactly as advertised and makes driving my 2014 Stingray more enjoyable than ever. I highly recommend this add on.
I just installed the Range Technology AFM disabler and WOW! what a difference it makes. This thing works exactly as advertised and makes driving my 2014 Stingray more enjoyable than ever. I highly recommend this add on.