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Service bulletin ENP-666

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 id10136405
Published by NHTSA2018-05-07
Manufacturer's numberENP-666
Manufacturer's date2018-04-26
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE

NHTSA's summary

This bulletin describes the procedure for adding pressure bleed valves into a multiple CNG cylinder roof pack fuel storage system. This is a customer-requested modification to verify fuel pressure in the cylinder pack.

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 FUEL SYSTEMS CNG FUEL SYSTEM

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