# Service bulletin ATC1685

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: 10086002
- Published by NHTSA: 2016\-12\-13
- Manufacturer's number: ATC1685
- Manufacturer's date: 2015\-07\-21
- NHTSA component: ENGINE

## NHTSA's summary

THIS ACCOUNT TEAM COVERAGE ADDRESSES CERTAIN ENGINES THA HAVE EXPERIENCED INTERNALLY LEAKING DEF PUMPS CAUSED BY FREEZING DEF DUE TO INCOMPLETE PURGES ON SHUT DOWN. CERTIFIED REPAIR LOCATIONS ARE AUTHORIZED TO REPLACE THE BACK FLOW CONNECTOR ON BOSCH DENOX 2.2 SUPPLY MODULES. REPLACEMENT OF THE CONNECTOR WILL IMPROVE POST SHUT DOWN PURGE EFFECTIVENESS.

## 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

## Vehicles listed

- CUMMINS ISB6.7
- CUMMINS ISL9
- CUMMINS ISX12
- CUMMINS ISX15

JSON: [/v1/bulletins/10086002](/v1/bulletins/10086002)

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