NHTSA ID Number: 10143785
Manufacturer Communication Number: PIP5151F
TSB/Document Date: 2018-08-20
Summary
This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. After the fuel system is cleaned out test the fuel using the latest version of PIT3173.
Bulletin No.: PIP5151F
Published date: 07/30/2018
Preliminary Information
PIP5151F Diagnostic Tip - Diesel Fuel System Contamination
Models
Model Years:
VIN:
Brand:
Model:
Colorado
2016 - 2019
All
All
2.8 LWN
All
Cruze
2014 - 2016
All
All
2.0 LUZ
All
Cruze
2017 - 2019
All
All
1.6 LH7
All
Equinox
2018 - 2019
All
All
1.6 LH7
All
Express
2010 - 2016
All
All
6.6 LGH and LML
All
Express
2017
All
All
2.8 LWN
All
Silverado
2011 - 2019
All
All
6.6 L5P, LGH and LML
All
Canyon
2016 - 2019
All
All
2.8 LWN
All
Savana
2010 - 2016
All
All
6.6 LGH and LML
All
Savana
2017
All
All
2.8 LWN
All
Sierra
2011 - 2019
All
All
6.6 L5P, LGH and LML
All
Terrain
2018 - 2019
All
All
1.6 LH7
All
from
Engine:
to
Transmissions:
Supersession Statement
This PI was superseded to add Model Years. Please discard PIP5151E.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition / Concern
A dealer may encounter a customer's concern of hard start, no start, rough running, low fuel
pressure and/or DTCs P0087, P0088, P0191 and P128E. During inspection of the fuel system
and it's components, the dealer may find contamination. Below are examples of
contamination that have been found in returned parts and what we believe to be the source
of the contamination. There are also examples of diesel fuel mixed with automotive liquids
that might help identify different sources of contamination.
LGH/LML Fuel Pressure Regulator 1 Contaminated With Diesel Exhaust Fluid (DEF)
LGH/LML Fuel Pressure Regulator 1 Contaminated With DEF
LGH/LML Fuel Pressure Regulator 1 With Rust Due To Water Contamination
LGH/LML Fuel Pressure Regulator 2 With Rust (On Left) Due To Water Contamination
LGH/LML Fuel Pressure Regulator 2 With DEF Contamination
Diesel Fuel and Coolant
Diesel Fuel and Engine Oil
Diesel Fuel and Transmission Fluid
Diesel Fuel and Brake Fluid
Diesel Fuel and Power Steering Fluid
Diesel Fuel and Windshield Washer Fluid
Diesel Fuel and Water
Diesel Fuel and Gasoline
Recommendations / Instructions
If the above types of contamination are found, be sure to thoroughly inspect, clean and flush the
fuel system. Refer to SI for fuel systemcleaning procedures.
Warranty Information
This PI is being published to help the technician to be able to identify the signs of contamination in
Diesel fuel. If you see evidence ofcontamination take appropriate measures to ensure that all of the
contaminated fuel is removed from the vehicle. o
Fr fuel testing, please refer to the latest version of
PIT3173: Information On Testing Centers for Fluid Contamination Analysis. Any components that
have failed as a result of contamination should NOTbe covered by warranty.
Please see New Vehicle Limited Warranty:
Damage Due to Contaminated or Poor Quality u
Fel
Poor fuel quality or incorrect fuel ma
y cause drivability problems such as hesitation, lack of power
,
stalling, or failure to start. It may also render gauges inoperable or degrade functionality for
components such as spark plugs, oxygen sensors,and the catalytic converter
. Damage from poor
fuel quality, water contamination, or incorrect diesel fuel or gasoline ma
y not be covered.
For more on information on if the repairs should be covered under warranty review with your
District Manager of Aftersales.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.
© 2018 General Motors
. All Rights Reserved.
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TSB/Document ID: PIP5151F
Replacement Service Bulletin Number:
MFR Communication Date: 2018-07-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, GASOLINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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