# Service bulletin SB\-214064

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: 10030577
- Published by NHTSA: 2009\-10\-23
- Manufacturer's number: SB\-214064
- Manufacturer's date: 2009\-07\-15
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

## NHTSA's summary

MACK TRUCK: DISCHARGE RECIRCULATION VALVE \(DRV\) AIR LINE SERVICE KIT 21377589 HAS BEEN DEVELOPED FOR THE REPAIR OR REPLACEMENT OF DRV AIR LINE ON MACK MP7 ENGINES. IF THE DPF \(DIESEL PARTICULATE FILTER\) FAILED REGENERATION DUE TO SLOW T1 TEMPERATURE RISE DURING ACTIVATION OF DRV, THERE MAY BE AN ISSUE WITH A BROKEN DRV LINE. NO MODEL OR MODEL YEARS LISTED. \*PE

## 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

- MACK MACK

JSON: [/v1/bulletins/10030577](/v1/bulletins/10030577)

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