# Service bulletin PIP5228C

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10099470
- Published by NHTSA: 2017\-05\-17
- Manufacturer's number: PIP5228C
- Manufacturer's date: 2016\-09\-30
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

## NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A VIBRATION THAT IS FELT BETWEEN 1200 – 1400 ENGINE REVOLUTIONS PER MINUTE WHEN IN ACTIVE FUEL MANAGEMENT V4 MODE. TECHNICIAN WILL NEED TO USE CH 51450\-NVH PICO OSCILLOSCOPE DIAGNOSTIC KIT TO MEASURE THE FREQUENCY OF THE VIBRATION. TECHNICIAN WILL NEED TO INSTALL AN EXHAUST DAMPER AND EVALUATE THE VEHICLE. IF THE VIBRATION IS NOT REDUCED, THE THREE\-WAY CATALYTIC CONVERTER AND CAB MOUNT SETTLING PROCEDURES WILL NEED TO BE COMPLETED. THIS CONSISTS OF LOOSENING THE EXHAUST CLAMPS AND BODY MOUNTS, SETTLING THE COMPONENTS AND TORQUEING THEM BACK TO SPECIFICATION.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine, Turbocharger or supercharger

## Vehicles listed

- 2014 to 2015 CHEVROLET SILVERADO 1500
- 2014 CHEVROLET SILVERADO 2500
- 2014 CHEVROLET SILVERADO 3500
- 2015 GMC SIERRA 1500
- 2014 GMC SIERRA 2500
- 2014 GMC SIERRA 3500

## Other bulletins for the same vehicles and component

- [PI0653A](/bulletins/10190955.md), 2021-04-26, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center A Service Agent \(Dealer\) during vehicle service may need to replace an engine turbocharger \(TC\). Any turbocharger that is returned to the Warranty Parts Center \(WPC\) will be inspected by engineering for root cause failure. The Warranty Part Center \(WPC\) has received turbochargers returned by Service Agents that have been disassembled, damaged during removal from the engine, electrical harnesses or connectors that have been cut or removed from the turbocharger and/or improperly packaged turbochargers resulting in shipping damage.
- [18236](/bulletins/10147335.md), 2018-11-13, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 18236 \- Special Coverage \- On some vehicles, equipped with the LML \(DURAMAX 6.6L V8 TURBO Diesel\) engine, the exhaust turbocharger outlet pipe may have a bad weld. Smoke may be noticed from under the hood at a stop or while driving. The customer may also smell exhaust gas. Dealers are to replace the exhaust turbocharger outlet pipe. The repairs will be made at no charge to the customer.
- [PI0653E](/bulletins/10139284.md), 2018-06-04, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.
- [PI0653B](/bulletins/10138688.md), 2018-05-29, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo\-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers.
- [PI0235H](/bulletins/10138619.md), 2018-05-29, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary information bulletin provides a procedure to repair the joint being loose or out of position for the turbocharger to turbocharger exhaust pipe or turbocharger exhaust pipe exhaust downpipe connection, to correct the customers concern of Exhaust Leak or Vibration/Rattle Noise at Approximately 900 RPM, Fuel Smell, White Smoke, Oily Substance on Exhaust Downpipe.
- [PI0653C](/bulletins/10126343.md), 2017-12-22, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center.
- [PI0653D](/bulletins/10118979.md), 2017-10-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo\-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers. \(New models and RPOs added\)
- [03\-06\-04\-017K](/bulletins/10116586.md), 2017-08-31, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. This Informational Bulletin provides information on availability of Diesel Fuel additives.
- [PIP5361](/bulletins/10075745.md), 2016-07-07, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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