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Service bulletin IB11-L-003B

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 id10096863
Published by NHTSA2017-04-04
Manufacturer's numberIB11-L-003B
Manufacturer's date2017-02-28
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

THIS INFORMATION IS BEING ISSUED TO HELP DEALERS IDENTIFY A POTENTIAL SOURCE FOR FUEL CONTAMINATION. IF A CUSTOMER’S COMPLAINT LEADS TO THE DISCOVERY OF CONTAMINATED FUEL, THE SOURCE OF THE CONTAMINATION MUST BE FOUND AND REPAIRED. CONTAMINATED FUEL MAY RESULT IN MANY DIFFERENT FAILURES. SOME EXAMPLES OF THESE FAILURES ARE: PLUGGED FUEL FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC… ISUZU’S FAILURE INVESTIGATIONS HAVE FOUND A COMMON OCCURRENCE OF THE FUEL FILLER NECK BEING INSTALLED INCORRECTLY. THIS POOR INSTALLATION WILL ALLOW UNWANTED MATERIAL TO ENTER THE FUEL TANK CONTAMINATING THE FUEL. USE THE INFORMATION BELOW TO CONFIRM THE FUEL FILLER NECK IS INSTALLED CORRECTLY. IF THE FILLER NECK INSTALLATION IS INCORRECT, USE THE INFORMATION BELOW TO REPAIR THE FUEL FILLER NECK.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system

Vehicles listed
ISUZU N-SERIES2011 to 2018

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