Technical Service Bulletin IB18J002 — 2011 ISUZU N-SERIES

RECENTLY, THE ESSENTIAL TOOLS-DPF INJECTOR CLEANING KIT (EN-52575), INJECTOR CLEANER ACCESSORY KIT (EN-52575-50), AND INJECTOR SEAL INSTALLER AND SIZER (J-46911)--WERE SHIPPED TO ISUZU DEALERS. ISUZU HAS DEVELOPED A PROCEDURE TO REMOVE THE CARBON BUILDUP FROM THE DPF FUEL INJECTOR TIP AND TO MAINTAIN THE INJECTOR PERFORMANCE LEVEL. THESE ESSENTIAL TOOLS ARE: KIT 1-AN ULTRASONIC CLEANING MACHINE, AND SUPPORT RACK (SEE FIGURE 1), KIT 2-A STAND WITH BASE, ARM WITH CLAMP, BRASS BRISTLE BRUSH, AND PYREX BEAKER (SEE FIGURE 2), AND KIT 3-AN INJECTOR SEAL PRTECTOR, SEAL PUSHER AND SEAL SIZER (SEE FIGURE 3). DPF INJECTOR CLEANING KIT EN-52575, DPF INJECTOR CLEANER ACCESSORY KIT EN-525750-50, AND INJECTOR SEAL INSTALLER AND SIZER J-46911 COMBINE TO MAKE A COMPLETE KIT FOR CLEANING. THE ESSENTIAL TOOLS ARE USED ON A BENCH TOP (SEE FIGURES 1, 2, & 3). REFER TO THE APPROPRIATE SERVICE MANUAL FOR INFORMATION ON WHEN AND HOW TO PERFORM THE DPF INJECTOR CLEANING PROCEDURE.