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NHTSA ID Number: 10161014
Manufacturer Communication Number: PIP5647
Summary
This Preliminary information communicates
A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level will be found over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. Small gas engines (SGE) May only have the engine oil level over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. This concern is caused by marshalling the vehicle around the lot before it is sold and/or short driver cycles.
18 Affected Products
Vehicles
BUICK | ENCORE | 2016-2019 |
| CHEVROLET | CRUZE | 2016-2019 |
| CHEVROLET | EQUINOX | 2018-2019 |
| CHEVROLET | MALIBU | 2016-2019 |
| CHEVROLET | SILVERADO 1500 | 2019 |
| GMC | SIERRA 1500 | 2019 |
| GMC | TERRAIN | 2018-2019 |
SEOCONTENT-START
Bulletin No.: PIP5647
Published date: 05/13/2019
Preliminary Information
PIP5647 Low Mileage Running Poorly With Rich Fuel Trims and/or Crank Case Overfull
Models
Brand: Model: Model Years:
VIN:
from to
Engine: Transmissions:
Buick Encore 2016 – 2019 All All
1.4L LE2 All
Chevrolet Cruze 2016 – 2019 All All
1.4L LE2 All
Chevrolet Malibu 2016 – 2019 All All 1.5L
LFV All
Chevrolet Equinox 2018 – 2019 All All 1.5
LYX All Chevrolet Silverado 1500 (New Model) 2019
All All 5.3L 6.2L L82 L84 L87 All GMC Sierra 1500 (New Model)
2019 All All 5.3L 6.2L L82 L84 L87 All GMC Terrain
2018 – 2019 All All 1.5L LYX
All
Involved Region or Country North America
A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing
this condition. Fuel trims around -20% may be observed on both banks. Engine oil level will be
found over full and have a fuel odor. It will be found
Condition
that the Engine oil is diluted with fuel.
Small gas engines (SGE) May only have the engine oil level over full and have a fuel odor. It will
be found that the Engine oil is diluted with fuel.
Cause
This concern is caused by marshalling the vehicle around the lot before it is sold and/or short
driver cycles.
Correction:
Record the fuel trims and oil level.
Change the oil and filter, drive the vehicle and evaluate the fuel trims and record.
Note: Do not replace the fuel pump for this condition
If the fuel trims return to normal return the vehicle to the customer.
If the issue is not corrected by the instructions listed above, follow published SI diagnostics for
the concern.
This PI will be updated as information is gathered.
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.
Labor Operation Description
Labor Time
4086998
Change the oil and filter, drive the vehicle and evaluate the fuel trims and record
0.5 Hr.
*This is a unique Labor Operation for Bulletin use only.
Version History
Version 1
Modified 05/13/2019 – Created on
SEOCONTENT-END
Bulletin No.: PIP5647
Published date: 05/13/2019
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