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Old Jul 5, 2021 | 04:57 PM
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Default Range DisableG

I've read about the AFM failure issues and seen You Tube videos on this product, but is it worth it for a 2019 GS? I see a lot of them for sale on the forum. Is there a reason so many are selling them? Keeping it in manual mode keeps in V8 but sometimes I just want to let the automatic do what it does.

Thanks
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Old Jul 5, 2021 | 05:25 PM
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I have one and I think the car runs better with it (the displacement on demand system in my 2008 Pontiac G8 GT works far smoother that the AFM in the Vette IMHO) I don’t think it will spare you from the A8 shudder, if you’re going to get it you’re going to get it (I ended up needing the triple flush even with the Range device.

According to others on the forum, there are a bunch for sale here due to people selling their cars while the market is high.

Good luck!
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Old Jul 5, 2021 | 05:36 PM
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Also - the older models are known to draw power when the car is off. The latest version doesnt do it.
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Old Jul 5, 2021 | 05:37 PM
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Originally Posted by l.i. bruce fan

According to others on the forum, there are a bunch for sale here due to people selling their cars while the market is high.

Good luck!

That makes sense. The car is a 2019 with 3000 miles so no issues yet. I'm thinking the Range is more preventative than trying solve an existing problem.
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Old Jul 5, 2021 | 05:42 PM
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Default Range

I have one but only use it on the track. Never to work. Better mpg without it and when I nail the accelerator, its v8 time.
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Old Jul 5, 2021 | 06:05 PM
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Originally Posted by Maxpowers
Also - the older models are known to draw power when the car is off. The latest version doesnt do it.
This hasn’t been an issue for several years now. Buy it from Range and you’ll be sure to get the most recent version (they used to do mail-in updates for people who bought direct from them too).

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Old Jul 5, 2021 | 06:34 PM
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Originally Posted by RRC19966
That makes sense. The car is a 2019 with 3000 miles so no issues yet. I'm thinking the Range is more preventative than trying solve an existing problem.
Yes. And if you have a car build date of Feb 2019 or later you have the latest fluid. It's win win to have the range and the newest fluid.
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Old Jul 5, 2021 | 06:59 PM
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Originally Posted by joemessman
Yes. And if you have a car build date of Feb 2019 or later you have the latest fluid. It's win win to have the range and the newest fluid.
I couldn't agree more. I have one on my corvette and I have one on my Cadillac which it prevents the stop-start mode. Love them both!
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Old Jul 5, 2021 | 09:05 PM
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Originally Posted by Cedar
I couldn't agree more. I have one on my corvette and I have one on my Cadillac which it prevents the stop-start mode. Love them both!
I HATE the stop/start function on other cars, cannot stand it.
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Old Jul 5, 2021 | 09:44 PM
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I have one for sale. 8.6 version. No battery draw. Blue. Had it for 2 months. Them got car tuned.

Pm me
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Old Jul 5, 2021 | 10:41 PM
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Some of the reason for the number of Range AFM Eliminators for sale is people trading in or selling their C7s to move up to a C8. Owners may also be selling their C7s for other vehicle models. The Range device works well - just be sure you get the most current version of the device.
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Old Jul 6, 2021 | 10:48 AM
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Originally Posted by johnfin
I have one but only use it on the track. Never to work. Better mpg without it and when I nail the accelerator, its v8 time.
That use seemed backwards to me, but then I saw that you are more concerned with mpg’s than the tranny switching between 8 and 4-cylinder mode. To each his own, but I’m in the camp that just leaves the AFM plugged in all the time…that is, until I go to the dealer.
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Old Jul 6, 2021 | 11:08 AM
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I'm not much for wasting money on "performance enhancers" and the like. For that reason I never considered using the Range AFM Disabler on my GM Vehicles. I've always considered the AFM feature a plus for highway driving. Consequently, when I purchased a C7 I never gave elimination of AFM a second thought until I read this: The real reason why Corvette C7 Stingray uses steel torque tube and why this signifies the fundamental failure of the new car | corvette c7 stingray and Z06 exposed (wordpress.com)

This article is something to consider when deciding whether or not to disable AFM in your Corvette. Granted it's a dated article but I haven't seen any changes in design coming from GM so I presume that the information contained in the article is still valid. Also, you have to ask yourself, why all the drive train issues with the A8 (AFM all the time) and not with the M7(AFM only in Eco mode)?
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Old Jul 6, 2021 | 12:04 PM
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Originally Posted by WPGZ06
I HATE the stop/start function on other cars, cannot stand it.
I have that start/stop on my Ford, and it's never worked thankfully.
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Old Jul 6, 2021 | 03:49 PM
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Default Feature

What is the stop start feature
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Old Jul 6, 2021 | 05:00 PM
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A number of cars turn their engine off when the car is stopped to save fuel (such as waiting for a light). The engine automatically restarts upon releasing the brake. Restart can also occur with moving the wheel, touch the accelerator, etc.
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Old Jul 7, 2021 | 11:10 AM
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Along the same topic line, is there any advantage to disabling the AFM valves back near the exhaust? I understand that the Range device does not address the valves.
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Old Jul 7, 2021 | 01:26 PM
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The Range keeps the car from going into V4 mode. Thus it does address the AFM valves as they remain in V8 mode at all times with the Range installed.
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Old Jul 7, 2021 | 02:34 PM
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Originally Posted by Elk
The Range keeps the car from going into V4 mode. Thus it does address the AFM valves as they remain in V8 mode at all times with the Range installed.
Cool. I saw a post or two that said that the Range does not effect the valve operation at all. In other words, the valves still open and close and the Range just keeps it in V8 mode.
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