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Any one here with a GM truck using an AFM delete?

Posted on 7/26/26 at 2:14 pm
Posted by bbvdd
Memphis, TN
Member since Jun 2009
29092 posts
Posted on 7/26/26 at 2:14 pm
If so, which one are you using? Does it work as it is supposed to?
Posted by poppa1254
Moody, AL
Member since Jan 2019
609 posts
Posted on 7/26/26 at 2:33 pm to
I use the Range AFM disabler in my 2018 Silverado. You never know it's there and works great.
Posted by LanierSpots
Gulf of America / Sarasota FL
Member since Sep 2010
72180 posts
Posted on 7/26/26 at 3:49 pm to
I have one ordered for my 2020 5.3L. Should arrive tomorrow


Posted by wrongRob
Tampa FL
Member since Oct 2017
1508 posts
Posted on 7/26/26 at 5:12 pm to
I ordered the Range it should be here tomorrow.

I'm deleting the AFM/DOD altogether by swapping in a 6.6
Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23390 posts
Posted on 7/26/26 at 5:53 pm to
I have a 2020 Sierra with the 5.3 with one. Im not sure how good it works.

I have noticed that my engine doesnt burn oil anymore so there's that.

It supposed to stop your engine from cutting off at stop signs. It works for that too, but about once every 2 months it stops at a stop light. I bought one for $60 off Amazon.

Posted by LSUDUCKMAN67
DTB
Member since Sep 2020
1722 posts
Posted on 7/26/26 at 6:40 pm to
When I had my 2018 Chevy with the 5.3 I had a range and it worked great. Never had issues
Posted by JRinNOLA
Uptown New Orleans
Member since Feb 2020
166 posts
Posted on 7/27/26 at 7:22 am to
I bought Boost arm dfm delete from Amazon a year ago for $149.00 works great.
Posted by RingLeader
Slidell, LA
Member since Jan 2007
1112 posts
Posted on 7/27/26 at 7:33 am to
Range in both of our 5.3 GM’s. It’s a 5 minute install.
Posted by KemoSabe65
70605
Member since Mar 2018
7662 posts
Posted on 7/27/26 at 9:32 am to
quote:

Back to top Posted on 7/26/26 at 5:53 pm to bbvdd I have a 2020 Sierra with the 5.3 with one. Im not sure how good it works. I have noticed that my engine doesnt burn oil anymore so there's that


What a travesty that you have to buy an aftermarket gizmo to make a $70k truck not eat itself.
Posted by EllisUTiger
Prairieville, LA
Member since Oct 2009
7 posts
Posted on 7/27/26 at 11:30 am to
Range DFM from Amazon. Works perfectly.
Posted by LanierSpots
Gulf of America / Sarasota FL
Member since Sep 2010
72180 posts
Posted on 7/27/26 at 6:36 pm to
Mine is a lymayda. Installed it today.

Amazon $59


Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23390 posts
Posted on 7/27/26 at 6:59 pm to
It was 40k when I bought it but I yes, sucks.
Posted by HeftyBear
CENLA
Member since Jul 2015
64 posts
Posted on 7/28/26 at 9:34 am to
My rebuilt Jasper engine came with a delete kit....

Financially I would suggest you go with a Range or similar ASAP so you dont end up like me.
Posted by AndyCBR
Baton Rouge, LA
Member since Nov 2012
8404 posts
Posted on 7/28/26 at 12:22 pm to
I run a Range device on a 6.2L GM.

The lifters are still prone to failure but the electronic device is supposed to buy you time.

The only real way to fully delete is by replacing the cam and lifters which is a pretty costly job if you pay a shop to do it.

On my vehicle it does set an emissions flag so I have to run without it for 100 miles or so for that to clear before getting an inspection.

You can also get a tune to disable the AFM/DOD electronically but with the same caveat as my statement above regarding the root cause being the problematic AFM lifters.
This post was edited on 7/28/26 at 12:24 pm
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