# Service bulletin TSB190012\-081620

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: 10164730
- Published by NHTSA: 2019\-09\-16
- Manufacturer's number: TSB190012\-081620
- Manufacturer's date: 2019\-08\-16
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; EQUIPMENT

## NHTSA's summary

This Technical Service Bulletin describes a new engine control module \(ECM\) calibration code available to prevent a pressure difference across the turbocharger during certain running conditions that can lead to turbocharge compressor seal lubricating oil leaks. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164730-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164730-9999.pdf)

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

## Components

Engine, Equipment and accessories, Turbocharger or supercharger

## Vehicles listed

- CUMMINS B6.7

JSON: [/v1/bulletins/10164730](/v1/bulletins/10164730)

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