NHTSA ID Number: 10099765
Manufacturer Communication Number: PIP5319D
TSB/Document Date: 2017-05-19
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT SOME VEHICLES MAY HAVE A RATTLE COMING FROM THE TURBO ON A COLD START. IF THE TECHNICIAN HAS VERIFIED THE RATTLE NOISE WHEN COLD IS FROM THE TURBOCHARGER, AND THE NOISE IS UNFORCED, THERE IS A REVISED PART AVAILABLE FOR THIS CONCERN.
Bulletin No.: PIP5319D
Date: Sep-2016
Subject:
Rattle From the Turbocharger on Cold Start
Models:
2014 - 2016 Cadillac
CTS-V Sport and XTS
Equipped with LF3 Twin Turbocharged Engine
This PI was superseded to update Part Information. Please discard PIP5319C.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
You may have one of the above vehicles come into your dealership with the concern of a rattle from the turbocharger when cold.
This will be a cold start noise at idle, not to be confused with the noise when revving the engine referred to in PI1234.
Please verify that the noise is from the turbocharger before going forward.
Recommendation/Instructions
If you have verified the rattle noise when cold is from the turbocharger, and the noise is unforced, there is a revised part available for this concern.
Note: There are sound bites of the 2 different types of noise in the January 29, 2016 Version of TechLink available from the SI home page.
The new part has a revised spring for the wastegate to limit movement when cold.
The new part numbers are 12673349 and 12673350 for CTS-V Sport and 12666540 for the XTS.
If the vehicle already has these part numbers installed, DO NOT REPLACE AGAIN.
Parts Information
Part Number
Description
Quantity
12673349
Turbo charger Assembly - LH
CTS
1
12673350
Turbo charger Assembly - RH
CTS
1
12666540
Turbo Charger Assembly (RH/LH) XTS
2
Labor Operation
Description
Labor Time
4068290
Turbocharger Replacement
Use Published Labor Operation Time
Warranty Information
For vehicles repaired under warranty use:
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.
1
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.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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TSB/Document ID: PIP5319D
Replacement Service Bulletin Number:
MFR Communication Date: 2016-09-19
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
MFR Component System:
MFR Component Subsystem:
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