Are AFM Disablers Safe? Active Fuel Management (2022)

AFM is intended to conserve your fuel while offering your vehicle excellent performance. Things, however, do not always go as per plans. You might either find the cylinder sound noisy or have issues with the oil consumption of AFM lifters.

AFM disablers come in handy in such scenarios. If you’re unfamiliar with how this device relates to the car parts, they basically deactivate cylinders. Now, you might ask, “Are AFM disablers safe?”. Since they prevent or keep something on hold during your ride, there remain some hazards. Let us check out this article to know if the AFM disablers are safe.

Why Use AFM Disablers?

Smart vehicle owners use AFM disablers to enhance their engine performance. Most vehicles arrive with little power from the manufacturing factory. AFM disablers retain this limited power and reduce excess oil usage.

Your vehicles will get into a full cylinder method, ensuring that no cylinders are dropped by your fuel systems. Acording to RoadWeekly, AFM disablers basically unleash the hidden power of your vehicles.

Users prefer this rather than deleting the AFM for its reasonable price and greater performance enhancement.

Is the AFM Disabling Permanent?

Many people give up on the idea of using AFM disablers thinking the disabling is permanent. However, it’s not. You can always revert and remove the AFM disabler whenever you want.

The engine jumps back to the Active Fuel Management mode. One benefit of this is that you can choose from using the engine as it is or in full power – whichever way you like it.

What Are Some Risks Associated with AFM Disablers?

Disabling AFM does not bring any immediate risks. No tech solution is flawless, though. The same goes for the AFM disablers.

Even though AFM disablers are said to stop any further harm to your vehicle engine and prevent AFM lifter issues, they are not 100% effective in this. It is possible to face AFM lifter failures even after using AFM disablers.

Though, AFM disablers are not to be blamed. It happens due to faulty manufacture or design.

Another mentionable downside is the AFM disablers cause reduced gas mileage. With decreased MPGs, you might experience small increments in your gas costs. Lucky for you, this gas cost is much less than the repair costs of AFM. If you have trouble with this, you always have the option of unplugging the AFM disabler.

One of the main problems we talked about earlier was the fuel cost. As all the cylinders are put to work, you would have to take more trips to the gas station.

The increase in fuel cost should not discourage you. You can always look up disablers that refine your fuel economy. This way, the fuel cost will not be a deal-breaker for you.

Most of the AFM disables these days come with a pre-installed fuel economy saver feature. Another risk was that AFM disablers eat up batteries. While the disablers manage to keep the engine in shape, your battery is hampered. Often, the load can be heavy as all the cylinders are in use.

The damage is not much, and the cost behind it is also negligible.

Finally, if you use an AFM disabler, make sure you use your vehicle on a regular basis. You might have to take out your disabler if your car remains idle for more than 5 days. When you do not use your car that has an AFM disabler in it, its module takes in all the battery energy.

So, Are AFM Disablers Safe?

We would say that the AFM disablers are safe to use unless your system has a flaw in it. With the AFM disablers in use, you get to unlock fun features like full power, fully reversible disabling, and enhanced engine performance.

When cylinders drop their power at unexpected times, the AFM disablers help to provide stable performance. 

Final Thoughts

That is a wrap for now. We hope you got your answer to the question – Are AFM disablers safe?

Keeping in mind all the essential features, performance, and popularity, the risks seem too little. Therefore, we would recommend you get your hands on the AFM disablers. To avoid any risk, try buying the ones from top brands.

Best Seller List of Active Fuel Managements:

Bestseller No. 1
RA003 Active Fuel Management AFM Disable Device, Compatible with GM V8 V6 Engine
  • 1.Replacement for Range Technology AFM Disable Device RA003.
  • 2. Keep the vehicle in V8 or V6 mode, easy to operate, just plug in the diagnostic port
  • 3. The product will not reprogram the factory ECU, so that the car is always in full cylinder mode
  • 4. After the device is plugged into the port, four lights will flash in sequence, and only one light will be on when it is stable. If you do not use it for a long time, please unplug the device to avoid loss of equipment life
  • 5. Please confirm whether your model is suitable before buying
Bestseller No. 2
GTMOTOR Active Fuel Management Disabler AFM RA003 Compatible with most GM Vehicles
1,687 Reviews
GTMOTOR Active Fuel Management Disabler AFM RA003 Compatible with most GM Vehicles
  • Small product, great function, make you get enough power while driving, keep V8.
  • Simple installation, manual included, plug and play.
  • Compatible with GMC BUICK CHEVROLET and other models.
  • Note: keep V8 may cause excessive water temperature in some car.
  • Will not modify your car's program, keep your car in factory ECU.
Bestseller No. 3
L&C OFFICIAL Valve Lifters Lash Adjusters for Chevy/GMC 5.3/5.3L 6.0/6.0L Active Fuel Management...
6 Reviews
L&C OFFICIAL Valve Lifters Lash Adjusters for Chevy/GMC 5.3/5.3L 6.0/6.0L Active Fuel Management...
  • If you are not sure whether the right, please contact us before purchase. Or there is noise after installation, we will help you solve this problem and give you a return
  • 100% Brand New and OE Quality
  • Package included: Hydraulic Lifters Lash Adjusters (Intake / Exhaust Hydraulic Valve Lifters)
  • 1 Year Warranty - Fast Shipping
  • OEM NO.12569256/12571595/12639516/HL177/HL178/1261119820/12645725/17122490/05234670/12564012/ 52502/12564735/12632143/12639516/12648846/17122490/HL124/HL128/HL7011S /HL2148S/ht2303/JB-7011/12499225/B-12303/ht2303/12576400/5234890/8171224900/JB2079/HT2148/28304500/12698946
Bestseller No. 4
KVAC RA003 AFM Disabler Active Fuel management AFM Disable Device Fit For GM V8 V6 Vehicles
  • EASY-TO-USE Active Fuel Management Disabler – Keep your vehicle in V8 and with full power.  Disable 4 cylinder mode on all GM Active Fuel Management Vehicles.
  • Easy to install- Disconnect your battery. Plug the KVAC device in the diagnostic port.
  • Will not reprogram factory ECU
  • Full power all the time. Increased throttle response and more consistent power delivery across the entire power band.
  • After plugging the device in, the blue light turned on. It's the indication of the device being connected.
Bestseller No. 5
Qzucar AFM/DFM Active Fuel Management Disabler Compatible with V6/V8 GM Vehicles RA003
  • The Qzucar AFM/DFM Disabler allows your V6 or V8 vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
  • Fast and easy setup; simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.
  • Keep your engine stable when cycling between half-cylinder or full-cylinder operation.
  • The Qzucar AFM/DFM Disabler does not reprogram your factory ECU. Leaves no trace. Unplug it to return to factory settings.
  • Compatible with V6 and V8 GM active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
Bestseller No. 7
Range Technology Plug & Play AFM/DFM Active Fuel Management Disabler for GM Vehicles RA003G (Green)
  • The Range AFM/DFM Disabler allows your V6 or V8 vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
  • Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU. Full power delivery all the time without factory warranty concerns.
  • Range AFM/DFM Disabler keeps you in full power 100% of the time. | Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system. | The power and control you need in any situation.
  • The Range AFM/DFM Disabler does not reprogram your factory ECU. | Leaves no trace. Unplug it to return to factory settings | Compatible with all V6 and V8 GM active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
  • Please check compatibility
Bestseller No. 8
Range Technology RA003R Plug & Play AFM/DFM Active Fuel Management Disabler (Package may vary)
  • -Compatible with select Buick, Cadillac, Chevrolet, GMC, Isuzu, SAAB, Pontiac, Saturn & Suzuki GM vehicles
  • -Keeps you in full power 100% of the time, no more shuddering or dropping cylinders
  • -Fast and easy setup; simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system
  • -Does not reprogram your factory ECU, unplug it to return to factory settings
  • -Red LED version
Bestseller No. 9
Range Technology Active Fuel Management Disable Device (Blue)
  • 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
Bestseller No. 10
GM Chevy Active Fuel Management AFM DOD Disable Kit for 5.3L engines
  • GM brand non-AFM/DOD (w/ or w/o VVT) Camshaft
  • 16 GM LS7 style lifters w/ plastic trays
  • MLS head gaskets & timing cover gasket set
  • complete head bolt set & crankshaft bolt
  • GM brand non-AFM/DOD valley plate

Last Update : 2022-05-22

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