Maintain your vehicle’s V8 mode! Disable 4-cylinder mode on all GM Active Fuel Management vehicles. Installation takes mere seconds, simply plug it into the diagnostic port, tool-free. It doesn’t alter your factory ECU, leaving no trace. Enjoy full power at all times, with enhanced throttle response and consistent power delivery across the entire range. Ideal for high-load situations like towing, off-roading, icy or snowy conditions, or high-speed commuting.
Keep your vehicle in V8 mode; Disable 4 cylinder mode on all GM Active Fuel Management Vehicles
Installs in seconds; Plugs into diagnostic port with no tools needed
Does not reprogram factory ECU; Leaves no trace
Full power all the time; Increased throttle response and more consistent power delivery across the entire power band
Original Mem Retain Brand 9 Volt Battery Powered OBD ll Connector Vehicle Memory Saver Reliable and Easy eBaydiy Tools
$19.99
obd2 Gauges Display Car HUD Head Up Display F8 Plus ,OBD+GPS Gauge, Digital Speedometer for Car with Water Temperature, Voltage, Fuel Consumption, RPM,obd2 Gauge Speedometer Suitable for All Car eBaydiy Tools
Original price was: $59.99.$53.99Current price is: $53.99.
Range Technology Corded Electric Active Fuel Management Disable Device (Blue) eBaydiy Tools
$219.88
Or 4 interest-free payments of $55 with
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Additional information
| Brand | Range Technology |
|---|---|
| Power Source | Vehicle Powered |
| Product Dimensions | 4.1"L x 3.74"W x 4.1"H |
| Operating System | IOS |
| UPC | 855748004021 |
| Global Trade Identification Number | 00855748004021 |
| Manufacturer | Range Technology |
| Model | FBA_RA003 |
| Item Weight | 2.11 ounces |
| Item model number | FBA_RA003 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | FBA_RA003 |
| OEM Part Number | RA003 |
| ASIN | B00BR1R8N8 |
| Date First Available | March 8, 2013 |


ANTOINE –
This device works. My mileage actually improved a bit, someone at GM should explain that one to me.
This unit really works. My new 2018 Silverado 1500 (“e” model) was running well before I plugged it in the OBDII socket, but I wanted the option of disabling this V8-V4 mode because of what had happened to my friend’s 2011 Sierra 1500 (excessive oil consumption between scheduled oil changes due to worn rings on an otherwise meticulously maintained truck. This was traced to a lack of proper lubrication in V4 mode, an issue supposedly fixed since in the newer models). I just couln’t afford to take any chances at having to go through an engine disassembly so soon in my truck’s life. I mean, how long have they been messing with V8s? They should have left these engines alone instead of messing with cylinders 1, 4, 6, and 7. Since I do mostly highway trips, my mileage has actually improved, not by much, but it shouldn’t have if you believe the GM hype. You really have to wonder why all this V8-V4 complexity was added to a perfectly good V8 if as, in my case, my mileage improved!!! The ONLY thing I miss at times (easily fixed by shutting down the truck and just unplugging it from the OBDII socket) is some engine compression braking in hills from the V4 mode. It helped me maintain a set cruise speed going down some hills with a light 2000 pound trailer load, and the fact that the engine no longer shuts off at stops or red lights (the “e” model has the Lithium battery pack and induction motor to spool up the engine under these conditions but it won’t do any of that while this particular unit is plugged in). Other than that, I have the V8 I expected now, the mileage is fine and hopefully I won’t have issues with failing parts in cylinders 1,4,6 and 7. The added complexities of these otherwise old V8’s should be a cause for concern. They use a special camshaft ground differently just for cylinders 1,4,6 and 7, they have a higher-volume oil pump, and a pressure relief valve to handle the incessant oil/computer controlled operations of the intake and exhaust valves in these 4 cylinders and this device just stops all this from happening without reprogramming anything. I could be wrong of course, but I think the pressure relief valve should have no issues handling the changes for the life of the engine. The rest is literally put to sleep while this device is plugged in.If you want to take your truck in for maintenance, say while it is still under warranty, just remove it before going into the stealer. They will never know. Hopefully I’ll never have to go in for expensive repairs due to failures with cylinders 1,4,6 and 7. Make sure you get this device with the latest firmware as it is now totally stealthy to Onstar’s big brother monthly reporting. Range Technology has done its homework. I don’t work for them, I’m just a happy customer and would recommend this to anyone just wanting back the V8 truck they thought they bought.
George N. –
This thing saved my 5.3 Silverado!!!!!
Researched the oil consumption problem on my 2008 Chevy Silverado 5.3 with Active Fuel Management, and found that when truck goes into 4 cylinder mode it begins to use oil to the tune a quart every 1500 miles. Decided to buy Range AFM disable module and it works great! Oil consumption is virtually non existent with 85K miles on the truck I change oil every 5 K miles and surprise the oil is still there. It runs strong in constant V-8 mode which has not effected overall mileage one bit. One thing I noticed that you have to check on information center once in a while to make sure unit is working because after I let the truck sit for a few days with module plugged in I noticed it was not working. I then unplugged the unit and plugged it back in and it worked, this occurred twice in a 6 month period. If vehicle is not to be driven for more than two days I unplug the module and haven’t had the problem since. This unit is well worth the money spent to save my engine from damage from the GM blunder of Active Fuel Management, which in my opinion is inexcusable disaster inflicted on what in my opinion is one of the best trucks ever made.”Product Update 11-23-16 my truck has 93k on it and today the truck began shifting very hard… I thought maybe transmission was letting go but remembered someone commenting on how the Range module was causing this with their truck. My solution was to disconnect Range module, then connect code reader to scan the system no trouble codes found. Then I cleared system just to be sure and installed Range module again. Everything is fine shifting perfectly I assume there is a firmware update for this problem.
Kenneth sheppard –
Can remove before taking in for service
Works great to keep the engine out of the active fuel management mode and shifts a lot firmer. Just plug into diagnostic port under dash then start engine and give it a minute to re program ecm and enjoy your drive. Will lower fuel mileage slightly but worth saving lifter problems
Jacob Bradley –
Worth the price
Very expensive, but it works to keep it in 8 cylinder mode. Not as good as a dod lifter replacement and an engine tune, but does work. Only thing to keep in mind is if you have to pass emissions testing unplug it and drive 100 miles or so to reset emissions monitors or you will fail the readiness test. Also keep in mind it turns off all check engine lights, so beware of that. Worked great for me though, 10k miles and counting
Amazon Customer –
Good product, poor equipment package
Product seems to work well. Didn’t quite appear new though, the box for it the seal was open and not in very good shape.
Raul –
Bueno pero yo no sentí que cambiara mucho el desempeño del motor. Solo que si se aceleró un poco más el motor. Al último termine vendiendo el dispositivo ha alguien que le sirviera más.
Marco –
Works great. No more going into 4 cylinder mode. No more vibration. Great response from engine
Christine Riddell –
This disabler will not work on a 2024 Silverado 6.2 engine. I ran it for a while while and paid no attention to what was actually going on and upon close monitoring I realized the range disabler was doing nothing. I should have returned it but waitered to long. 300 bucks gone. It’s a scam. The disabler that plugs into your ECM do not work either after doing some research.
Amazon Customer –
I’ve been using this on my 2017 GMC Sierra for a few years now and have had no issues. Keeps the truck in V8 mode all the time.
Terry –
Range works as it states and keeps my 2017 Silverado High Country in 8 100% of the time. Bought it as I have a nice MRBP exhaust system but didn’t like the low tone when in 4v. Does it change the gas milage, that can be debated, as the liters doesn’t drop to 0 when going down a grade. Or when slowing down, I truly think it now reads correctly and will drop to 3 liters per KLM. One thing for warning is if you park the your truck for a few days , pull the unit out as I feel it’ll slow drain the battery.Reason for 4 star as the unit plugs in upside down and if Range Engineer’s did there home work. The unit would plug in right side up for aesthetics.