# Service bulletin WB13\-64B

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: 10110681
- Published by NHTSA: 2017\-08\-04
- Manufacturer's number: WB13\-64B
- Manufacturer's date: 2013\-10\-30
- NHTSA component: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

On the vehicles affected by this bulletin, an inspection of the exhaust gas diffuser is necessary. Refer to Part 1 of this bulletin for the inspection procedure. If the inspection procedure reveals that the diffuser rain cap is not functioning properly, replace the diffuser assembly \(see Part 2\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10110681-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10110681-0001.pdf)

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

## Components

Engine, Exhaust and emissions, Fuel system

## Vehicles listed

- 2008 PREVOST WE
- 2008 to 2009 PREVOST X3

JSON: [/v1/bulletins/10110681](/v1/bulletins/10110681)

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