17NA334

File in Section:
Bulletin No.:
Service Bulletin
Date:
17-NA-334
October, 2017
INFORMATION
Subject:
Information on Diesel Engine Soot Deposits at the Variable Turbine Geometry
(VGT) Pin
Brand:
Model:
Chevrolet
Cruze (Gen
II - VIN B)
Equinox
GMC
Terrain
Model Year:
VIN:
from
to
2017
2018
2018
Involved Region or Country
2018
from
Engine:
Transmission:
to
Diesel
(RPO LH7)
North America
Condition
4879702
Some customers may comment that combustion deposits or soot (1) can be seen coming
from the Turbo Actuator Pin/Arm (2).
Information
Parts Information
No parts are required for this repair.
Copyright 2017 General Motors LLC. All Rights Reserved.
This is normal operation and will not affect the function of the Turbocharger. There is a
small gap between the seal and the shaft to allow for proper rotation.
Do Not replace the Turbocharger.
Page 2
October, 2017
Version
1
Modified
Released October 18, 2017
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.
Bulletin No.: 17-NA-334
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