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Service bulletin E290

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10213098
Published by NHTSA2022-06-02
Manufacturer's numberE290
Manufacturer's date2022-05-16
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

An EPA21 MX fuel injector cleaning procedure is available. The attached document details the fuel injector cleaning procedure and helps to determine when it is necessary to replace the injectors.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
PACCAR MX-112021
PACCAR MX-132021

Listing a model year does not mean every vehicle of it is concerned: the document says which.