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NHTSA ID Number: 10202400
Manufacturer Communication Number: PIP5824
Summary
This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern.
Condition
A 2021 vehicle equipped with a HFV6 Gen2 engine with AFM may be brought into the dealership with misfires on cylinder 2 or 5.
This could be misfire all the time or start after an AFM event that may or may not go away.
Cause
We have determined there is an issue with some rockers / SRFF’s on the vehicles within the breakpoints listed above.
Parts Information
| Description | Part Number | QTY. |
| Switching valve rocker arm | 12666601 | 4 |
| Dual Feed Hydraulic Lash Adjuster | 12690246 | 4 |
8 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CADILLAC | CT5 | 2021 |
| CADILLAC | XT5 | 2021 |
| CADILLAC | XT6 | 2021 |
| CHEVROLET | BLAZER | 2021 |
| CHEVROLET | CAMARO | 2021 |
| CHEVROLET | COLORADO | 2021 |
| GMC | ACADIA | 2021 |
| GMC | CANYON | 2021 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5824
Published date: 09/22/2021
https://www.nhtsa.gov/recalls?nhtsaId=10202400
MC-10202400-9999.pdf 100.326KB
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- Compatible with V6 / V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- OBDCAR AFM/ DFM Disabler allows your V6/ V8 GM 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.
- Will not reprogram your factory ECU, unplug it to return to factory settings.
- Please confirm the compatibility before ordering it.
- AFM/DFM Disabler Compatibles with most V6 & V8 GM Motors.
- Keep your V6 or V8 GM motors to run in full cylinder mode at all times.
- Just plug it into your vehicle's OBD-II port and it will immediately start working to eliminate the AFM/DFM system.
- Will not reprogram your factory ECU, Unplug it to back to factory settings.
- Please verify if your model is appropriate prior to making a purchase.
- 🏁【2024 New Version】AFM/DFM Disabler is the 2024 new upgraded version, which outperforms the old model.
- 👍【Safety Guarantee】This AFM Disabler won't modify your original ECU programming; unplugging it resets to factory default settings.
- 🔧【Simple Usage】No tools required; simply plug into the OBD-II port and it starts working.
- 🛠️【Enhanced Driving Experience】AFM/DFM Disabler keeps your engine in V6/V8 mode at full power all the time, enhancing the driving experience.
- ❤️【100% After-Sales Satisfaction Guarantee】If you have any quality issues or dissatisfaction with our AFM Disabler, feel free to contact us; we'll offer returns or exchanges. We always adhere to providing a 100% satisfaction guarantee for our customers. (Note: Please check compatibility with your car model before purchase.)
- No installation required, simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM/DFM system.
- OBDAFM AFM/ DFM Disabler allows your V6/ V8 GM motors to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
- Compatible with V6 / V8 General Motors active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- Will not reprogram your factory ECU, unplug it to return to factory settings.
- Please confirm the compatibility before ordering it.
- [ENHANCED ENGINE PERFORMANCE]: 2024 New Version Benowo AFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active and Dynamic Fuel Management systems from dropping cylinders.
- [WIDE COMPATIBILITY]: Benowo AFM/DFM Disabler is compatible with a variety of General Motors' V6 and V8 engines equipped with AFM or DFM, includes cars, trucks, SUVs such as 5.3 silverado, 5.3 gmc sierra.
- [SAFE AND REVERSIBLE]: The Benowo AFM Disabler does not reprogram the factory ECU. Simply unplug it to return to factory settings. Full power delivery all the time without factory warranty concerns.
- [SAVE THE VEHICLE SAVE YOU MONEY]: No more shuddering as your engine cycles between running on half or all cylinders. Valve lifters will no longer be tasked with activating and deactivating constantly, saving you money on costly future repairs.
- [EASY TO USE]: No tools or mechanical ability needed. Simply plug the module into OBD-II port and it instantly disables the AFM or DFM system. Simply remove it if uninstallation is necessary.
- Compatible with most V6 & V8 GM active or dynamic fuel management motors, includes cars, trucks & SUVs.
- Keep your vehicle in V8 model with full power. Disable 4 cylinder mode on your car and fit for a wild range of GM V8 V6 vehicles.
- Plug and play, install without any tools. Pls unplug the OBDAFM Device if it's not used for a long time.
- Leaves no trace, Unplug it to return to factory settings. This AFM Disabler does not reprogram your factory ECU.
- When the device was plugged into the port, blue lights will flash in sequence and then turn off. It just indicated that the device was connected and working normally.
- 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.
- Replacement for GM V6 & V8
- Replacement for V6 / V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.
- AFM/ DFM Disabler allows your V6/ V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.
- The AFM/DFM Disabler is NOT currently Replacement for 2019+ Silverado and Sierra models equipped with 5.3L / 6.2L motors and 10-speed transmissions.
- Please confirm the compatibility before ordering it.
- 【COMPATIBILITY】The AFM/DFM Disabler compatible with GM V6 and V8 vehicles, includes cars, trucks and SUVs. Compatible with a wide range of vehicle makes and models equipped with AFM systems, ensuring versatility and convenience. Please check the specific models in the picture.
- 【IMPROVED PERFORMANCE】Smoother operation, improved throttle response, and enhanced power delivery by deactivating the AFM system.
- 【NO REPROGRAM】You can easily return the vehicle to its factory settings by unplugging the disabler device. Please unplug the disable device if it's not used for a long time.
- 【PLUG AND PLAY】Designed for straightforward installation, typically plugging into the vehicle's OBD-II port without the need for extensive modification or expertise.
- 【RELIABLE CHOICE】Our product is your reliable choice to improve your driving experience. If you have any questions about the product or purchase, please contact me directly.
Last update on 2024-06-04 / Affiliate links / Images from Amazon Product Advertising API
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Bulletin No.: PIP5824 Published date: 09/22/2021 Preliminary Information PIP5824 2021 HFV6 Engine Misfire On AFM Cylinders 2 or 5 Models Brand: Cadillac Cadillac Cadillac Chevrolet Chevrolet Chevrolet GMC GMC Model: CT5 XT5 XT6 Blazer Camaro Colorado Acadia Canyon Model Years: 2021 2021 2021 2021 2021 2021 2021 2021 VIN: from to 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 2/1/2021 7/1/2021 Engine: 3.0 LGY 3.6 LGX 3.6 LGX 3.6 LGX 3.6 LGX 3.6 LGZ 3.6 LGX 3.6 LGZ All All All All All All All All Transmissions: Involved Region or Country Condition Cause North America A 2021 vehicle equipped with a HFV6 Gen2 engine with AFM may be brought into the dealership with misfires on cylinder 2 or 5. This could be misfire all the time or start after an AFM event that may or may not go away. We have determined there is an issue with some rockers / SRFF’s on the vehicles within the breakpoints listed above. Correction: If you have a vehicle with this concern, swap the AFM rocker oil control solenoid in the camshaft cover from side to side and reevaluate. If the misfire remains or comes back after an AFM event on the same cylinder, replace all 4 rockers / SRFF’s and all 4 SHLA’s / lifters for the affected cylinder. If the misfire goes away or moves to the other bank, replace the AFM oil control solenoid. Parts Information Description Switching valve rocker arm Dual Feed Hydraulic Lash Adjuster Part Number 12666601 12690246 QTY. 4 4 Warranty Information For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Please use the Labor Operation for the vehicle and bank you are working on. Version History Version 1 Modified 09/22/2021 – Created on.
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