18NA118

File in Section:
Service Bulletin
-
Bulletin No.:
18-NA-118
Date:
April, 2018
INFORMATION
Subject:
Diagnostic Tip for Malfunction Indicator Lamp (MIL) Illuminated - DTC P0101, P0171,
P0172, P0300 and/or P1101 Set
Brand:
Model:
Chevrolet
Holden
Model Year:
VIN:
from
to
Cruze (Gen
II - VIN B)
2016
2018
Astra BL
2017
2018
from
Engine:
Transmission:
to
1.4L (LE2)
Involved Region or Country
North America, Australia, New Zealand
Condition
Some customers may comment that the MIL is illuminated.
Some technicians may find one or more of the following DTCs set:
• P0101: Mass Air Flow (MAF) Sensor Performance set in the Engine Control Module
• P0171: Fuel Trim System Lean set in the Engine Control Module
• P0172: Fuel Trim System Rich set in the Engine Control Module
• P0300: Engine Misfire Detected set in the Engine Control Module
• P1101: Intake Air Flow System Performance set in the Engine Control Module
Copyright 2018 General Motors LLC. All Rights Reserved.
Page 2
April, 2018
Bulletin No.: 18-NA-118
5040304
This condition may be caused by the air cleaner element bracket (2) not properly installed
onto the mount (1), causing the bracket and/or mount to become warped over time.
Cause
5039419
An improperly installed bracket may cause the air cleaner element to warp, be misaligned
and/or improperly seal onto the air cleaner housing inlet duct, creating gaps as shown
above.
Bulletin No.: 18-NA-118
April, 2018
Page 3
Correction
5042522
Perform an inspection of air cleaner element bracket:
• If damage to the bracket (1) has been found, replace the air cleaner element and
validate a secure connection between the air cleaner bracket and the mount. Refer to
the Service Procedure below.
• If no damage has been found to the bracket (2) and the air cleaner shows no signs of
improper sealing to the intake duct, refer to SI for further diagnostics.
Service Procedure
Additional Air Cleaner Element Bracket Service
5039529
Page 4
April, 2018
Bulletin No.: 18-NA-118
Important: When removing the air cleaner element,
care should be taken not to damage the bracket mount.
Follow the instructions on the bracket for air filter
removal.
1. Remove the air cleaner housing.
2. Remove the air cleaner element.
5039828
3. Squeeze the tabs (1) to release the bracket from
the mount.
4. Slide the air filter away from the intake duct.
5. Using care, lift the bracket away from the mount
and remove the air cleaner.
5040297
6. Align the new air cleaner to the air cleaner housing
intake duct.
7. Align the bracket (1) to the mount (2).
Bulletin No.: 18-NA-118
April, 2018
Page 5
8. Using care, slide the air cleaner and bracket
rearwards till an audible click can be heard.
Note: A properly installed air cleaner should not fall out
of the housing when turned over and shaken slightly.
9. Inspect the air cleaner for proper seal around the
inlet duct.
10. Install the air cleaner housing.
Parts Information
No parts are required for this repair.
Version
1
Modified
Released April 16, 2018
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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