# Service bulletin C1634B

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: 10085642
- Published by NHTSA: 2016\-12\-07
- Manufacturer's number: C1634B
- Manufacturer's date: 2015\-11\-02
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE

## NHTSA's summary

THIS CAMPAIGN IS TO ADDRESS TURBOCHARGER ACTUATOR FAILURES IN CERTAIN ENGINES IN TRANSIT BUS APPLICATIONS. THIS CAMPAIGN AUTHORIZES THE RECALIBRATION OF THE TURBOCHARGER ACTUATOR. THIS IS A REVISION TO A PREVIOUSLY RELEASED COMMUNICATION.

## 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

- CUMMINS ISB6.7

JSON: [/v1/bulletins/10085642](/v1/bulletins/10085642)

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