NHTSA ID Number: 10201288
Manufacturer Communication Number: PIP5776E
Summary
This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
8 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CADILLAC | ESCALADE | 2021 |
| CHEVROLET | SILVERADO 1500 | 2020-2021 |
| CHEVROLET | SUBURBAN | 2021 |
| CHEVROLET | TAHOE | 2021 |
| GMC | SIERRA 1500 | 2020-2021 |
| GMC | YUKON | 2021 |
Condition
The vehicle may come in with a P0300 – P0308 set with a bent push rod that leads to a Collapsed lifter or a lifter that come apart.
Cause
Internal lifter concern.
Correction:
If service information leads to a collapsed lifter and/or lifter has come apart including a bent pushrod it will be necessary to follow the replacement guideline.
SEOCONTENT-START
Bulletin No.: PIP5776E Published date: N/A
Preliminary Information
PIP5776E Misfire Due To Collapsed Lifter
Models
Brand:
Cadillac Chevrolet Chevrolet Chevrolet GMC GMC
Model:
Escalade Silverado 1500 Suburban Tahoe
Sierra 1500 Yukon
Model Years:
2021
2020 – 2021
2021
2021
2020 – 2021
2021
VIN:
from to
September 1, 2020 March 31, 2021
September 1, 2020 March 31, 2021
September 1, 2020 March 31, 2021
September 1, 2020 March 31, 2021
September 1, 2020 March 31, 2021
September 1, 2020 March 31, 2021
6.2 L87
5.3 L84 6.2 L87
5.3 L84 6.2 L87
5.3 L84 6.2 L87
5.3 L84 6.2 L87
5.3 L84 6.2 L87
All All All All All All
Involved Region or Country
Condition Cause
North America, Middle East, Australia and New Zealand
The vehicle may come in with a P0300 – P0308 set with a bent push rod that leads to a Collapsed
lifter or a lifter that come apart.
Internal lifter concern.
Correction:
If service information leads to a collapsed lifter and/or lifter has come apart
including a bent pushrod it will be necessary to follow the replacement guideline
below.
If vehicle has under 8000 miles (12,875km) and is within the breakpoint window it will
be necessary to replace all lifters and guides on both banks. If vehicle has over
8000 miles (12,875km) and is within the breakpoint window it will be necessary to
replace the lifters and guides on the effected bank only not both.
Breakpoint for the models effected September 1, 2020 to March 31, 2021
When replacing the lifter and guide please indicated which lifter has failed by marking
its location on the guide for inspection (please do not cover the date code). The
parts will be requested back.
Note: It is not necessary to replace the oil control solenoid for this failure mode.
If the vehicle does not fall into the breakpoint window, please follow the latest
version of 19-NA-218..
Warranty Information
For this repair use the published labor time as called out in SI Labor Time Guide.
Version History
Version 6
Modified 01/20/2021 – Created on.
02/23/2021 – Added the Middle East
03/04/2021 – Updated to clarify models.
04/23/2021 – Update to change the correction statement 05/17/2021 – Update to add breakpoint and
remove 2019 MY 06/18/2021 – Updated to add repair information
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5776E
Published date: N/A
NHTSA ID Number: 10193473
Manufacturer Communication Number: PIP5776C
Summary
This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5776C
Published date: 04/23/2021
- 🏁【2026 New Version】AFM/DFM Disabler is the 2026 new upgraded version, which outperforms the old model and compatible with much more popular vehicle models.
- 👍【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.)
- Easy Installation: No tools are required, simply plug in and start to work immediately
- Enhanced Driving Experience: OBDDFM AFM/DFM device enhances your driving experience smoothness by disabling active fuel management
- Non-Invasive Design: This AFM DOD Device does not modify your original ECU programming, unplug it to reset to factory default settings
- Wide Vehicle Compatibility: Compatible with V6 and V8 General Motors
(GM) active or dynamic fuel management vehicles, includes cars, trucks and SUVs - Compatibility Verification Required: Please check compatibility before purchasing to ensure proper fitment with your vehicle model
- Compatible with V6 / V8 General Motors
(GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs. - OBDCAR AFM/ DFM Del enhances your driving experience smoothness.
- Fast and easy setup; simply plug and it instantly starts working.
- Will not reprogram your factory ECU, unplug it to return to factory settings.
- Please confirm the compatibility before ordering it.
- Compatible with most V6 & V8 GM active or dynamic fuel management motors, includes cars, trucks & SUVs.
- Leaves no trace, unplug it to return to factory settings. This AFM/DFM device does not reprogram your factory ECU.
- Plug and play, install without any tools. Pls unplug the OBDAFM device if it's not used for a long time.
- When the device was plugged, blue lights will flash in sequence and then turn off. It just indicated that the device was connected and working normally.
- Backed by our 100% satisfaction guarantee—contact us anytime for returns or exchanges.
- 【Optimized Fuel Combustion Efficiency】The AFM DFM Disabler utilizes a full-cylinder combustion principle, ensuring fuel burns efficiently. This reduces and clears carbon deposits in the engine, helping to alleviate issues such as increased fuel consumption or engine stress caused by incomplete combustion over time
- 【Compatibility】The Active Fuel Management Disabler designed for GM vehicles from 2004 to 2019, the AFM Disabler is compatible with models like Chevy Camaro, Silverado 1500, Suburban, Tahoe, and GMC Canyon, Sierra 1500, Yukon, and Denali. Ensure compatibility with your vehicle's year and engine size (3.6L, 4.3L V6 )(5.3L, 6.0L, 6.2L V8) by checking the product details and images
- 【Plug-and-Play】The AG001 AFM Disabler plugs directly into the vehicle's OBDII port, making it safe and convenient to use. It operates without altering the factory ECU settings, so it won’t affect your vehicle's original condition
- 【Power Optimization】The AFM DFM Disabler disconnects from the power source when the vehicle is off, minimizing battery drain. Older vehicles might experience delayed ignition or battery drain if the device is left plugged in for extended periods without driving. To prevent this, either drive the vehicle regularly or remove the device if the vehicle will be unused for more than a week
This product presentation was made with AAWP plugin.





