# Service bulletin PI 663

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: 10025789
- Published by NHTSA: 2008\-09\-06
- Manufacturer's number: PI 663
- Manufacturer's date: 2008\-05\-16
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

MACK TRUCK: ENGINE MANAGEMENT SYSTEM \(EMS\) SOFTWARE UPGRADE \- MACK MP8 ENGINES. THE SOFTWARE INCLUDES A REDUCTION IN THE PEAK INJECTION PRESSURE. MODEL AND MODEL YEARS UNKNOWN. \*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

Electrical system, Engine, Software

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/10025789](/v1/bulletins/10025789)

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