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Joined: Dec 2002
Posts: 26,021 Likes: 11
Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2002
Posts: 26,021 Likes: 11 |
I bought a '14 Yukon Denali w/ <48K on it for Mama a few weeks ago. I got the AFM disabler today. It is Range Technology brand. https://www.rangetechnology.com/products/afm-dfm_disabler/I slipped it into the slot and headed for town today. I drove the rig about forty miles. If I had not pulled up the display to show V4 vs V8 activation, we would not have known the difference. If the vehicle ever needed a smog check, or other access to the OBD port, you just pull the plug out and replace it later. The mechanic assured me, no learn period. Just plug it in and go.
People who choose to brew up their own storms bitch loudest about the rain.
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Joined: Nov 2008
Posts: 4,217 Likes: 5
Campfire Tracker
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Campfire Tracker
Joined: Nov 2008
Posts: 4,217 Likes: 5 |
If I had an AFM vehicle I would probably look into one as well. As you probably know, it doesn’t really solve the root problem, as the AFM valve lifters are still in place and can still cause issues. I suppose it’s better than nothing, but I would still be nervous about the AFM/lifter related failures.
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Joined: Nov 2004
Posts: 10,052 Likes: 6
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2004
Posts: 10,052 Likes: 6 |
Do those work on the new ones that shut off different amounts of cylinders instead of just half of them. I don't know what those ladies at gm did with the newer 5.3s and 6.2s but I've head a lot of people having valve and lifter problems, major problems.
Bb
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Joined: Dec 2002
Posts: 26,021 Likes: 11
Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2002
Posts: 26,021 Likes: 11 |
I do not know about that.
My mechanic did mention a unit which disables the engine shut off at every red light, and a unit which does that as well as disables the cylinder deactivation.
People who choose to brew up their own storms bitch loudest about the rain.
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Joined: Aug 2010
Posts: 28,341 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Aug 2010
Posts: 28,341 Likes: 6 |
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Joined: Dec 2013
Posts: 23,686 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Dec 2013
Posts: 23,686 Likes: 1 |
If you loved her you’d have bought her a Toyota.
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Joined: Aug 2002
Posts: 5,759
Campfire Tracker
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Campfire Tracker
Joined: Aug 2002
Posts: 5,759 |
I had a Pulsar unit on my 2020 1/2 ton Denali. Just traded that truck for a 2024 AT4X and am going to order another a.s.a.p. Good units.
Know fat, know flavor. No fat, no flavor.
I tried going vegan, but then realized it was a big missed steak.
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Joined: May 2021
Posts: 177 Likes: 1
Campfire Member
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Campfire Member
Joined: May 2021
Posts: 177 Likes: 1 |
Range Tech doesnt have a unit for 2024 GM trucks yet. I'm waiting.
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Joined: Oct 2006
Posts: 24,644 Likes: 21
Campfire Ranger
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Campfire Ranger
Joined: Oct 2006
Posts: 24,644 Likes: 21 |
I thought this was going to be about a 270 rifle.
PRESIDENT TRUMP 2024/2028 !!!!!!!!!!
Posted by Bristoe The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Joined: Oct 2007
Posts: 7,052
Campfire Tracker
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Campfire Tracker
Joined: Oct 2007
Posts: 7,052 |
If the vehicle ever needed a smog check, or other access to the OBD port, you just pull the plug out and replace it later. The mechanic assured me, no learn period. Just plug it in and go. Every year when I pull mine for emissions I have to drive it and reset all the sensors...except one. We're allowed one not set in PA. Your mechanic is wrong. And some are a PITA to get the sensors to set. I used to drive the sob 300 miles to get them to set. Figured it out though. Drive 20 on warm engine. Let it sit overnight, cold start idle for 3-5 minutes theyre all ready.
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Joined: Sep 2021
Posts: 118
Campfire Member
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Campfire Member
Joined: Sep 2021
Posts: 118 |
I have a Pulsar on my 21 Silverado and it lets me control the AFM, Start/Stop, adjust the speedometer for tire size, speed limiter, tire pressure sensors and probably some more things I can't remember. It plugs in under the hood and lets me control things with the steering wheel buttons. Takes about 2 minutes to install or remove. https://www.rangetechnology.com/products/pulsar_lt/
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Joined: Jan 2005
Posts: 57,494
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 57,494 |
I had a Pulsar unit on my 2020 1/2 ton Denali. Just traded that truck for a 2024 AT4X and am going to order another a.s.a.p. Good units. kind of hard to say how good a unit is if its only on a vehicle 3 years or so.
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Joined: Nov 2006
Posts: 10,824 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2006
Posts: 10,824 Likes: 1 |
Didn’t realize until I saw this thread that GM had gone back to the boneyard of bad ideas to inflict this absurdity on a new generation of true believers. Thought they’d have learned their lesson 40 years ago with their Cadillac “8-6-4” disaster.
When I worked for them in those days, saw how they’d sequentially pull dies off the casting lines to make engineering changes to the product in the middle of a production run, just keep running them, leave the beta testing to the consumer…. Figure you might have several flow patterns in a run of intake manifolds, all the same part number, all the “correct” fit…
That’s when I bought my first Toyota, never looked back.
Mathew 22: 37-39
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Joined: Dec 2007
Posts: 16,167 Likes: 9
Campfire Ranger
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Campfire Ranger
Joined: Dec 2007
Posts: 16,167 Likes: 9 |
I had a Pulsar unit on my 2020 1/2 ton Denali. Just traded that truck for a 2024 AT4X and am going to order another a.s.a.p. Good units. kind of hard to say how good a unit is if its only on a vehicle 3 years or so. Had one on my GMC for ten years, does that count?
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Joined: Nov 2018
Posts: 3,752 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Nov 2018
Posts: 3,752 Likes: 1 |
My 2017 Silverado with the 6.2 cost me 5000 dollars for lifter repair just before I sold it. Less than 70000 miles and not abused. Edk
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Joined: Jan 2007
Posts: 3,560 Likes: 4
Campfire Tracker
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Campfire Tracker
Joined: Jan 2007
Posts: 3,560 Likes: 4 |
I have a Pulsar on my 21 Silverado and it lets me control the AFM, Start/Stop, adjust the speedometer for tire size, speed limiter, tire pressure sensors and probably some more things I can't remember. It plugs in under the hood and lets me control things with the steering wheel buttons. Takes about 2 minutes to install or remove. https://www.rangetechnology.com/products/pulsar_lt/I have this as well. It will also let you set the sensitivity of the throttle. I set it to "3" and throttle response is way better. You can set it to "5", but the pedal is way too sensitive. All things considered, it is a little peace of mind, but as stated above, the lifters are still in it. Whoever engineered this, and thought it was a good idea to activate and deactivate lifters, was/is an absolute idiot. I do believe Summit has a lifter kit to replace the 2 piece lifter design. However, the computer needs to be chipped if doing the conversion. As Ed stated, just to replace the bad lifter is a ton of money. From what I have seen, the heads have to come off in order to replace the lifters. There are also fuel rails under the intake that are one time use. Those get replaced also. Hindsight, wish I would have bought the 2500 with the 6.6 gas V8. It has regular hydraulic lifters and no DFM. Didn't really need a 3/4 ton truck, but at least I wouldn't have to worry about this issue. Clyde
The liberal mind is an endless black hole of stupidity.
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Joined: Feb 2004
Posts: 19,260 Likes: 4
Campfire Ranger
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Campfire Ranger
Joined: Feb 2004
Posts: 19,260 Likes: 4 |
My new Chevy V8 does not have the valve shut off. It was discontinued for the 2024. I still have the shutoff for the red light. I have pretty much gotten used to it.
kwg
For liberals and anarchists, power and control is opium, selling envy is the fastest and easiest way to get it. TRR. American conservative. Never trust a white liberal. Malcom X Current NRA member.
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Joined: Dec 2013
Posts: 44,653 Likes: 22
Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2013
Posts: 44,653 Likes: 22 |
If you loved her you’d have bought her a Toyota. This.
Slaves get what they need. Free men get what they want. Rehabilitation is way overrated. Orwell wasn't wrong. GOA member disappointed NRA member 24HCF SEARCH
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Joined: Dec 2013
Posts: 44,653 Likes: 22
Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2013
Posts: 44,653 Likes: 22 |
Didn’t realize until I saw this thread that GM had gone back to the boneyard of bad ideas to inflict this absurdity on a new generation of true believers. Thought they’d have learned their lesson 40 years ago with their Cadillac “8-6-4” disaster.
When I worked for them in those days, saw how they’d sequentially pull dies off the casting lines to make engineering changes to the product in the middle of a production run, just keep running them, leave the beta testing to the consumer…. Figure you might have several flow patterns in a run of intake manifolds, all the same part number, all the “correct” fit…
That’s when I bought my first Toyota, never looked back. My Dad worked on everything from cranes, power wagons, cars, trucks. Told me once he'd bought his last American car. Never bought anything but Toyota, Hondas, Nissan, Subaru after that. Too much maintenance on American cars and trucks.
Slaves get what they need. Free men get what they want. Rehabilitation is way overrated. Orwell wasn't wrong. GOA member disappointed NRA member 24HCF SEARCH
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Joined: Jan 2022
Posts: 1,203 Likes: 1
Campfire Regular
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Campfire Regular
Joined: Jan 2022
Posts: 1,203 Likes: 1 |
From conversations with a couple dealership mechanics, the problems with AFM system is most prevalent and almost guaranteed in two cases. Case one, people ignore the factory specification for oil and try to run 15-40 diesel or other higher than spec weights. Case two, people ignore the factory oil change interval. If you're avoiding those two cases then odds are greatly in your favor of not having issues.
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