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Service bulletin ENP-604

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 id10144256
Published by NHTSA2018-09-10
Manufacturer's numberENP-604
Manufacturer's date2018-08-29
NHTSA componentFUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE

NHTSA's summary

This service bulletin includes ESA valve information provided by OMB Saleri spa and is reproduced with permission. The two procedures in this bulletin are: (1) removing and replacing an OMB ESA cylinder valve coil and (2) installing a pressure relief device (PRD) into an OMB ESA cylinder valve.

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

Fuel system

Vehicles listed
AGILITY ROOFMOUNT CNG FUEL SYSTEM
AGILITY SIDE-MOUNT CNG FUEL
AGILITY SIDEMOUNT CNG FUEL SYSTEM
AGILITY FUEL SYSTEMS CNG FUEL SYSTEM
AGILITY FUEL SYSTEMS CNG FUEL TANK
AGILITY FUEL SYSTEMS LNG FUEL SYSTEM

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