# Service bulletin 18NA291

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: 10183157
- Published by NHTSA: 2020\-11\-30
- Manufacturer's number: 18NA291
- Manufacturer's date: 2020\-10\-29
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

## NHTSA's summary

This technical bulletin provides a procedure to replace the Schrader valve port with an open fill port to aid in filling the supercharger cooling system and to correct the engine performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183157-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183157-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Equipment and accessories, Turbocharger or supercharger

## Vehicles listed

- 2016 to 2019 CADILLAC CTS
- 2017 to 2021 CHEVROLET CAMARO

## Other bulletins for the same vehicles and component

- [PIP5319F](/bulletins/10156937.md), 2019-04-08, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 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.
- [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.
- [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. \(New models and RPOs added\)
- [PIP5319A](/bulletins/10114960.md), 2017-08-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This Preliminary Information communication provides information to the technician about vehicles that have a rattle from the turbocharger when cold. The technician will need to verify the noise is coming from the turbocharger before going forward. Technician will need to replace the turbocharger with the updated part number if verified the rattle noise when cold is from the turbocharger.
- [PIP5319E](/bulletins/10113362.md), 2017-08-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING. 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.
- [PI1234A](/bulletins/10112286.md), 2017-08-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE. This preliminary informational bulletin provides information on a turbocharger wastegate brief rattle or tick when revving engine in park or neutral being a normal characteristic and should not have any parts replaced
- [PIP5319D](/bulletins/10099765.md), 2017-05-19, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 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.
- [PIP5319C](/bulletins/10096057.md), 2017-03-21, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 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.
- [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.

JSON: [/v1/bulletins/10183157](/v1/bulletins/10183157)

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