# Service bulletin TSB220213\-110820

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: 10227535
- Published by NHTSA: 2022\-12\-12
- Manufacturer's number: TSB220213\-110820
- Manufacturer's date: 2022\-11\-08
- NHTSA component: EQUIPMENT

## NHTSA's summary

This Technical Service Bulletin was issued for Visible Engine Vapor Observed at Crankcase Breather Vent Tube. Symptom: Equipment experiencing visible engine vapor at crankcase breather vent tube. Root Cause: Vapors can escape the crankcase breather vent tube because of the design change to maintenance\-free impactor breather on model year 21 L9 CM2450. Verification Verify equipment has fewer than 3219 km or \[ 2,000 miles \]. Verify that no visible liquid drips from the crankcase breather vent tube"

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227535-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10227535-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- CUMMINS L9

JSON: [/v1/bulletins/10227535](/v1/bulletins/10227535)

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