B11-L-003A
Service Bulletin Details
Public Details for: B11-L-003A
If a customers 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 f
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BULLETIN NUMBER: IB11-L-003A IMPORTANT SERVICE INFORMATION FOR: SERVICE MANAGER ISSUE DATE: SERVICE ADVISOR JUNE 2016 TECHNICIAN GROUP: FUEL PARTS DEPARTMENT WARRANTY PERSONNEL FUEL CONTAMINATION – INCORRECT FUEL FILLER NECK INSTALLATION AFFECTED VEHICLES 2011 - 2017 MY Isuzu NPR/NPRHD/NPRXD/NQR/NRR Equipped with a diesel engine This bulletin supersedes bulletin IB11-L-003. This bulletin is being revised to update affected model years. Please discard Corporate Bulletin Number IB11-L003 INFORMATION 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. Detailed information regarding fuel filler neck installation can be found in Isuzu’s Body Builder Guide. FUEL FILLER NECK ASSEMBLY IMPORTANT: The Rollover Valve Hose must be installed to the rollover valve and routed into the corrugated hose protector in order for the valve to work properly. ROLLOVER VALVE POSITION The fuel filler neck must be installed with proper orientation on the body. The neck should be installed with the roll-over valve pointing upward. The bottom edge of the neck mounting flange must be parallel to the ground. See photo for reference. INCORRECT INSTALLTION Fuel filler necks found in these conditions will result in fuel contamination ROLLOVER VALVE is installed upside down. ROLLOVER VALVE TUBE is not installed. WARRANTY INFORMATION Any incorrect fuel filler neck installation or any failure resulting from fuel contamination is NOT warrantable.