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.)
- 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.
- 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
- Consistent Engine Operation: Helps keep your engine helps maintain more consistent engine operation for a more consistent driving experience, allowing you to enjoy reliable V6/V8 performance. Note: Please unplug the AFM DFM disabler when the vehicle is not used for an extended period of time.
- Engine Reliability & System Support: Designed to help reduce common AFM/DFM-related concerns, including valvetrain-related issues, while supporting overall engine consistency. Built with an intelligent voltage regulator for ultra-low power draw to help minimize battery drain and maintain electrical stability. Engineered for performance and long-term reliability.
- Smooth & Responsive Driving: Helps reduce rough transitions and inconsistent power delivery for a smoother drive, whether commuting, towing, or highway cruising. Experience more responsive throttle input and stronger, more consistent acceleration with fewer interruptions.
- Quick Plug-and-Play Setup: No tools or tuning required. Simply locate the OBDII port under the steering column, plug in the device, and enjoy an instant driving enhancement. When unplugged, the vehicle returns to its original state with no permanent changes to the ECU or factory settings, leaving no trace after removal.
- Wide Vehicle Compatibility: Compatible with most GM (General Motors) V6/V8 vehicles equipped with factory AFM/DFM systems, including GMC Sierra Yukon Chevy Tahoe Cadillac Escalade etc. (see full fitment chart). Not compatible with non-GM vehicles, GM models without AFM/DFM, 4-cylinder engines, vehicles equipped with 10-speed transmissions, or heavily modified vehicles. Please confirm compatibility before purchase.
This product presentation was made with AAWP plugin.