Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
IB09-N-001I
INFORMATION BULLETIN: THE INFORMATION SET FORTH IN THIS BULLETIN IS INTENDED TO AID TECHNICIANS IN PROPERLY TESTING THE BATTERIES AND ALTERNATORS IN THE AFFECTED ISUZU VEHICLES. IT IS IMPORTANT TO CONFIRM THE BATTERY IS IN GOOD CONDITION PRIOR TO DIAGNOSIS OF THE ALTERNATOR AND CHARGING SYSTEM. NEVER REPLACE AN ALTERNATOR BEFORE TESTING THE BATTERY’S CONDITION.
IB16-F-001E
INFORMATION BULLETIN: SOME CUSTOMERS WITH N-SERIES VEHICLES MAY NOTICE AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO LIMITED SLIP DIFFERENTIAL LUBRICANT ADDITIVE NOT HAVING BEEN USED DURING THE LAST SCHEDULED MAINTENANCE OR IN A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID. IF A CUSTOMER BRINGS AN AFFECTED VEHICLE IN AND COMPLAINS OF OR DESCRIBES THIS CONDITION, FOLLOW THE SERVICE PROCEDURE.
IB08-X-002J
INFORMATION BULLETIN: CLEAN IDLE LABEL REPLACEMENT PROCEDURES
SB23-J-001B
INFORMATION BULLETIN: THE VACUUM PUMP SERVICE PART FOR AFFECTED VEHICLES LISTED IN THIS BULLETIN HAS BEEN SUPERSEDED AND IS NOW THE SAME VACUUM PUMP THAT IS THE SERVICE PART FOR THE 6.6L GAS ENGINE. THE UPDATED PUMP REQUIRES THE OUTLET VACUUM HOSE TO BE REROUTED FOR PROPER FITMENT. FOLLOW THE SERVICE PROCEDURE BELOW TO INSTALL THE UPDATED REPLACEMENT VACUUM PUMP AND REROUTE THE OUTLET VACUUM HOSE AS SET FORTH BELOW.
IB09-N-001H
INFORMATION BULLETIN: THE INFORMATION SET FORTH IN THIS BULLETIN IS INTENDED TO AID TECHNICIANS IN PROPERLY TESTING THE BATTERIES AND ALTERNATORS IN THE AFFECTED ISUZU VEHICLES. IT IS IMPORTANT TO CONFIRM THE BATTERY IS IN GOOD CONDITION PRIOR TO DIAGNOSIS OF THE ALTERNATOR AND CHARGING SYSTEM. NEVER REPLACE AN ALTERNATOR BEFORE TESTING THE BATTERY’S CONDITION. BATTERIES MUST BE FULLY CHARGED FOR THE ECM AND/OR STARTER RELAY TO FULLY ENGAGE WITH THE STARTER. IF THE BATTERY VOLTAGE IS LOW, THE ECM WILL NOT ENGAGE OR MAY PARTIALLY ENGAGE THE STARTER. REPLACE THE ALTERNATOR ONLY IF IT FAILS THE ON VEHICLE TESTING PROCEDURE.
IB19-K-002A
THIS INFORMATION BULLETIN OUTLINES THE SERVICE PROCEDURE FOR INSTALLATION OF FLUID LEVEL INDICATOR JOINT TUBE ANYTIME THE AISIN TRANSMISSION IS REMOVED OR OIL PAN IS REMOVED AND REINSTALLED TO PREVENT WATER INTRUSION TO TRANSMISSION.
IB15-X-001C
THIS INFORMATION BULLETIN IS TO REMIND DEALERS WHENEVER THE IPC ASSEMBLY IS REPLACED IN AN AFFECTED ISUZU MANUFACTURED VEHICLE, THEY ARE TO AFFIX AN ODOMETER REPLACEMENT STICKER, AS THE ODOMETER IS NOT PROGRAMMABLE. THE STICKER SHOULD BE FILLED OUT COMPLETELY WITH THE DATE OF REPLACEMENT ALONG WITH THE MILEAGE FROM THE PREVIOUS ODOMETER READING, AND THE DEALER CODE OF THE DEALERSHIP REPLACING THE IPC.
IB18-X-002F
INFORMATION BULLETIN: THIS BULLETIN APPLIES TO ALL OEM AND REMANUFACTURED ENGINE AND TRANSMISSION ASSEMBLIES, FOR THE AFFECTED VEHICLES LISTED ABOVE, TO BE REPLACED UNDER THE ISUZU NEW VEHICLE WARRANTY, GOODWILL, ISUZU PARTS WARRANTY, GOLD STAR USED TRUCK WARRANTY AND/OR ALL EXTENDED POWERTRAIN WARRANTIES OFFERED BY ISUZU, AS WELL AS ALL OVER-THE-COUNTER ENGINE AND TRANSMISSION ASSEMBLY REPLACEMENTS.
IB16-F-001D
INFORMATION BULLETIN _SOME CUSTOMERS WITH N-SERIES VEHICLES MAY NOTICE AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO LIMITED SLIP DIFFERENTIAL LUBRICANT ADDITIVE NOT HAVING BEEN USED DURING THE LAST SCHEDULED MAINTENANCE OR IN A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.
WB11-X-001A
The following information is provided to clearly explain Isuzuâs policy for control module (engine, transmission, antilock brake, instrument panel, body control, power interface, etc.) reprogramming. Control module calibrations are regularly updated for many reasons. These reasons may include, but are not limited to: model year change, software corrections, certification compliance, product improvement and specific application requirements. However, the mere existence of a newer control module calibration does not necessarily mean that warranty coverage exists or that the calibration must be installed. It is not our policy to update control modules, under warranty or after warranty, based solely on the availability of a newer calibration file. Below are our guidelines for reprogramming control modules.
SB23-J-001A
The vacuum pump service part for affected vehicles listed in this bulletin has been superseded and is now the same vacuum pump that is the service part for the 6.6L gas engine. The updated pump requires the outlet vacuum hose be rerouted for proper fitment. Follow the service procedure below to install the updated replacement vacuum pump and reroute the outlet vacuum hose as set forth below.
IB18-X-001F
IDA is a diagnostic program that provides: 1. DTC Analysis 2. DPF Early Regeneration Warning Detailed instructions on how to use the IDA are included in this bulletin.
IB13-R-001G
This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio and component repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio and component repairs not covered under warranty.
IB18-X-001E
What is IDA? IDA is a diagnostic program that provides: 1) DTC Analysis: IDA analyzed DTCs (currently 35) and then provides quick and easy-to-understand repair solutions 2) DPF Early Regeneration Warning: IDA also reviews the three latest DPF regeneration odometer readings in the Health Report of the applicable VIN on IDA. IDA then analyzes the distances between the three regenerations. If the average of these distances is less than 55 km for a 4HK1 (5.2L) engine, or less than 70 km for a 4JJ1 (3.0L) engine, an alert will be shown on the IDA page in the form of a red regeneration icon. This is an early warning indication that a problem may be forming in the DPF regeneration cycle. However, if the enabling criteria shown above are not met, a regeneration icon will not appear on the IDA for that particular VIN. Detailed instructions on how to use IDA are included in this bulletin.
IB22-N-001
We have received reports of the front turn signal lenses cracking on Isuzu vehicles. These lenses are cracking from the effects of being washed with alkaline detergents. Alkaline detergents are typically used in industrial settings and are reactive with the paint, metals, and other materials used to make up the exterior components of Isuzu vehicles. Isuzu recommends that only neutral detergents be used when washing Isuzu vehicles. However, if alkaline detergents are used to wash an Isuzu vehicle, it is crucial that all traces of the detergent are rinsed away with water or wiped off as necessary. Allowing alkaline detergent to dry on the turn signal lenses will cause them to crack. Each Isuzu vehicle is originally equipped with an Owner's Manual that includes guidelines for the proper exterior maintenance of the vehicle. The following guidelines are typical of those found in an Isuzu Owner's Manual concerning the use of detergents on a vehicle's exterior.
IB16-F-001C
Some customers with N-series vehicles may notice an audible clicking or chattering noise coming from the rear of the vehicle while making tight turns. This condition may be due to incorrect axle fluid having been used during the last scheduled maintenance or in a previous repair. The condition can also result from delayed or skipped maintenance resulting in degradation of axle fluid.
WB13-X-001B
Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback. This bulletin was revised to add a Parts Warranty Form
WB13-X-001A
Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback.
IB09-X-002B
The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins. If a Threebond product is unavailable, we recommend that you utilize the chart below to find equivalent of similar products (when available) from Loctite and Permatex.
IB09-X-004C
The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.
SB10K001I
In response to requests from the field and in an effort to reduce repair costs of Aisin A465 6-speed transmission, the following On-Vehicle procedures have been approved for service at the dealer level. The following procedures have been approved for repair. Refer to the Automatic Transmission sub-section Internal Harness (Wire to Solenoid) section in the appropriate Service Manual for diagnostic and service procedures. In order to improve the quality of the original equipment manufacturer (OEM) and service replacement parts, Isuzu now requests dealers to capture TCM Freeze Frame Data for all Aisin A465 6-speed transmission component parts replaced under warranty. The primary purpose of the TCM Freeze Frame Data is to obtain faster and more accurate quality information on all Aisin A465 6-speed transmission replaced components. The collected information will be used to improve the reliability of OEM and service replacement transmission components.
IB22J001
On Isuzu N-Series Crew Cab Models, most engine and engine driven components for on-vehicle service, both for gasoline and diesel engines, can be accessed through the interior of the cab. There are 3 access points to create space for service and maintenance. The 3 access points are shown in the included images. Detailed information is now available in the Crew Cab section of all applicable Workshop Manuals (WSM). Please review the specific WSM for your vehicle for further details.
IB13R001E
This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio covered by this bulletin is repaired under warranty and may also be used for radio repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio repairs not covered under warranty.
SB18C001E
Some customers may complain about wind noise and/or water intrusion into the cab from the driver and/or passenger doors of the affected N-Series and FTR trucks. To correct this condition Isuzu Commercial Truck of America, Inc. (ITCA) is offering a new door weather strip to improve sealing of the driver and passenger doors.
IB09J003C
The following table contains many possible causes for the following symptoms. -Hard Start/No Start -Rough, Misfire, Unstable or Incorrect Idle -Surges, Lack of Power, Hesitation, Lag or Stumble While some of these symptoms may lead to component replacement, the replacement should not be considered a completed repair. These types of symptoms have a high probability for a repeat repair since the true source of the failure is typically fuel contamination. In order to improve the overall repair and reduce the potential repeat failures, the procedure below is provided to assist in identifying the source of fuel contamination. Additionally, this bulletin will provide information to clarify the meaning of injector balancing rates and how to apply the values when trying to diagnose the Isuzu common rail fuel system.
IB14L001A
Isuzu has found that many times customers are unfamiliar with the overall operation of the DPF system (including the importance of completing a regeneration), which leads to unnecessary vehicle downtime. Please make sure your sales and service staff is completely familiar with the DPF system functionality and operation so when a new truck is delivered or comes in for service, the dealership team can instruct customers on proper operation which will minimize vehicle downtime. The quick reference information below is provided to assist dealer personnel in better understanding the DPF Emission System Operation. Additional information regarding DPF Regeneration can be found in the Owner's Manual, Service Manual, the driver side sunvisor label, or on the Emission System Operation video. For your convenience, this video may be downloaded from www.isuzucv.com.
SB10K001H
In response to requests from the field and in an effort to reduce repair costs of the Aisin A465 6-speed transmission, the following On-Vehicle procedures have been approved for service at the dealer level. The following procedures have been approved for repair. Refer to the Automatic Transmission sub-section Internal Harness (Wire to Solenoid) section in the appropriate Service Manual for diagnostic and service procedures. In order to improve the quality of the original equipment manufacturer (OEM) and service replacement parts, Isuzu now requests dealers to capture TCM Freeze Frame Data for all Aisin A465 6-speed transmission component parts replaced under warranty. The primary purpose of the TCM Freeze Frame Data is to obtain faster and more accurate quality information on all Aisin A465 6-speed transmission replaced components. The collected information will be used to improve the reliability of OEM and service replacement transmission components.
IB21X003
Isuzu Commercial Truck of America, Inc. is proud to introduce the redesigned Isuzu Vehicle Health Report (VHR) program. Beginning October 2021, Isuzu dealers are able to access, through www.isuzutruckservice.com, all of the Isuzu Vehicle Health Report Data (MMU Data) associated with 2011MY and newer vehicles serviced by their dealership in a new, user friendly VHR. Look for the VHR tab after you log in. n contrast to the previous design, the new VHR exists in a central database easily accessed by dealership personnel at any time from any PC with internet access. Users will be able to quickly select vehicles by entering a VIN (partial or all 17 digits) or select from a list of the VINs most recently downloaded by their dealership to create a VHR.
IB14J002B
TURBOCHARGER INSPECTION.
IB10X004L
In an effort for continuous improvement, Isuzu has a need to obtain Mimamori ECU
IB18X001D
This bulletin supersedes information bulletin IB18-X-001C. The purpose of this bulletin is to update affected model years. Please discard previous bulletin IB18-x-001c. ISUZU DTC ANALYZER (IDA) ? PILOT PROGRAM INTRODUCTION
IB11-L-003D
THIS INFORMATION IS BEING ISSUED TO HELP DEALERS IDENTIFY APOTENTIAL 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 OCCURENCE 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.
IB18-J-002A
RECENTLY, THE ESSENTIAL TOOLS - DPF INJECTOR CLEANING KIT (EN-52575), INJECTOR CLEANER ACCESSORY KING (EN-52575-50), AND INJECTOR SEAL INSTALLER AND SIZER (J-46911) - WERE SHIPPED TO ISUZU DEALERS. ISUZU HAS DEVEOPED 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 PROTECTOR, SEAL PUSHER AND SEAL SIZER (SEE FIGURE 3). DPF INJECTOR CLEANING KIT EN-52575, DPF INJECTOR CLEANER ACCESSORY KIT EN-52575-50, 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.
SB18-C-001D
SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC. (ITCA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENTER DOORS.
IB08-X-002
ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARD'S (CARB) OPTIONAL IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS "CERTIFIED CLEAN IDLE" AND ARE "EXEMPT" FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMNET PURSUANT OT SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR "CERTIFICED CLEAN IDLE" VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE "CERTIFIED CLEAN IDLE" LABEL LOCATED ON THE DRIVER'S SIDE DOOR PANEL. IT IS IMPORTANT THAT THIS LABEL REMAIN, PERMANENTLY, ON THE VEHICLE TO IDENTIFY IT AS "CERTIFIED CLEAN IDLE." CARB REQUIRES THIS LABEL AS EVIDENCE THAT, AT HTE TIME OF MANUFACTURE, THE ENGINE INSTALLED MET THE APPLICABLE EMISSION STANDARDS. SHOULD THE LABEL BE FOUND MISSING OR DAMGED DURING AN INSPECTION, A CITATION AND PENALTIES MAY BE ISSUED. IF THE VEHICLE IS OPERATED IN CALIFORNIA WITH A DAMAGED OR MISSING CLEAN IDLE LABEL, ISUZU RECOMMENDS VEHICLE OPERATORS FOLLOW THE 5 MINUTE ESS REQUIREMENT BY MANUALLY TURNING OFF THE ENGINE. FOLLOWING THIS ESS REQUIREMNET WILL KEEP THE VEHICLE OPERATION COMPLIANT UNTIL A REPLACEMENT LABEL CAN BE INSTALLED. "CLEAN AIR IDLE" LABELS ARE PRINTED WITH A SERIAL NUMBER AND REGISTERED TO AN INDIVIDUAL VIN. AS A RESULT, A REPLACEMNET LABEL WILL ALSO INCLUDE A NEW SERIAL NUMBER WHICH MUST BE REGISTERED TO THE VEHICLE'S VIN BY THE MANUFACTURER. THE BELOW INFORMATION IS PROVIDED TO ASSIT IN ACQUIRING, REPLACING AND REGISTERING A REPLACEMENT LABEL.
SB18-C-001C
SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC. (ICTA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALNG OF THE DRIVER AND PASSENGER DOORS.
IB14-J-002A
AN INVESTIGATION OF RETURNED TURBOCHARGERS HAS IDENTIFIED A COMMON OCCURRENCE OF TURBOCHARGERS BEING REPLACED DUE TO INTERNAL OIL LEAKS WHEN, IN FACT, THERE IS NO OIL LEAK IN OR OTHER FAULT WITH THE TURBOCHARGER. THE PERCEIVED OIL LEAK ACTUALLY MAY BE A NORMAL CHARACTERISTIC OF THE CLOSED POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OR SOME OTHER UNIDENTIFIED CONDITION. THE PURPOSE OF THE CLOSED PCV SYSTEM IS TO KEEP HARMFUL BLOWBY GAS FROM ENTERING THE ATMOSPHERE. UNFORTUNATELY, BLOWBY GAS PRODUCTION AND AIR INTAKE DEMANDS DO NOT ALWAYS MATCH WHICH ALLOWS SOME OIL VAPOR FROM THE CRANKCASE TO ENTER THE INTAKE SYSTEM. AS A RESULT, THIS CONDITION MAY LEAD TO AN INCORRECT DIAGNOSIS. OIL IN THE INTAKE SYSTEM IS COMMON FOR A CLOSED PCV SYSTEM AND IS NOT A GOOD INDICATOR OF A TURBOCHARGER FAILURE. THE OIL SEAL INSIDE THE ISUZU TURBOCHARGER IS A DYNAMIC SEAL (NOT A RUBBER SEAL). AIR PRESSURE (I.E. BOOST PRESSURE) ON THE COMPRESSOR SIDE AND EXHAUST PRESSURE ON THE TURBINE SIDE KEEP THE LUBRICATING OIL INSIDE THE TURBOCHARGER CENTER HOUSING. A REDUCTION IN PRESSURE ON EITHER SIDE OF THE CENTER HOUSING WILL ALLOW OIL TO PASS INTO EITHER THE INTAKE OR THE EXHAUST SIDE OF THE TURBOCHARGER. IN ORDER TO STOP OIL FROM BYPASSING, THE SOURCE OF THE PRESSURE REDUCTION MUST BE LOCATED AND CORRECTED. THE MOST COMMON CAUSES OF THIS CONDITION ARE A RESTRICTED AIR FILTER, INCORRECT ENGINE OIL, LOOSE INTAKE HOSE CLAMPS, AND/OR EXCESSIVE CRANKCASE PRESSURE. IN ORDER TO BETTER SERVICE THE CUSTOMER AND HELP PREVENT THE UNNECESSARY REPLACEMENT OF UNDAMAGED TURBOCHARGERS, WE ARE PROVIDING THE FOLLOWING INSPECTION INFORMATION DESIGNED TO AID THE TECHNICIAN IN PROPERLY DIAGNOSING TURBOCHARGER CONCERNS.
IB18-X-001C
IDA IS A PILOT DIAGNOSTIC PROGRAM THAT PROVIDES TWO FUNCTIONS: 1) DTC ANALYSIS 2) DPF EARLY REGENERATION WARNING IT IS VITAL FOR ISUZU TO BE ABLE TO EVALUATE THE PERFORMANCE OF THIS PILOT TOOL. THEREFORE, IDA ALSO INCLUDES A FEADBACK PROCESS. THE FEEDBACK PROVIDED DURING THE PILOT PROGRAM WILL DEMONSTRATE IDA'S LEVEL OF EFFECTIVENESS AND ALSO HELP IMPROVE THE IDA PROGRAM. COMPLETING THE FEEDBACK PORTION OF THE IDA PROCESS AFTER REPAIRING A VEHICLE IS AN INTEGRAL PART OF UTILIZING IDA AND MUST BE DONE FOR EACH IDA SUGGESTED REPAIR. THE PILOT PROGRAM'S INITIAL ONE YEAR PERIOD HAS BEEN EXTEDED. PLEASE CONTINUE UTILIZING IDA AS MUCH AS POSSIBLE UNTIL FURTHER NOTICE. ISUZU COMMERCIAL TRUCK OF AMERICA (ICTA) IS REQUESTING ISUZU DEALERS TO USE IDA FOR ALL DTC-RELATED REPAIRS ON VEHICLES THAT ARE STILL UNDER WARRANTY. WHEN MAKING A REPAIR SUGGESTED BY IDA, PLEASE PRINT A COPY OF THE IDA-SUGGESTED REPAIR AND ATTACH IT TO THE REPAIR ORDER. IF THE IDA RECOMMENDATION DOES NOT REPAIR THE VEHICLE, ICTA WILL REIMBURSE THE DEALER FOR PERFORMING THE SUGGESTED REPAIR. COMPLETE THE FEEDBACK PROCESS WITHIN IDA BEFORE SUBMITTING A CLAIM. SUBMIT ALL DOCUMENTATION WITH THE CLAIM. FAILURE TO PROVIDE DETAILS WILL DELAY CLAIM PAYMENTS. NOTE: DO NOT USE IDA ON VEHICLES THAT ARE "OUT OF WARRANTY"
IB10-X-004K
IN AN EFFORT FOR CONTINUOUS IMPROVEMENT, ISUZU HAS A NEED TO OBTAIN MIMAMORI ECU (HEALTH REPORT) INFORMATION. IT IS CRITICAL TO OBTAIN MIMAMORI ECU INFORMATION DURING THE REPAIR PROCESS. THIS INFORMATION WILL BE USED BY ISUZU ENGINEERING TO HELP DETERMINE "ROOT CAUSE" FOR CUSTOMER'S CONCERNS AND DEVELOP/VALIDATE A FIELD FIX. ISUZU RECOGNIZES THAT THE SUCCESS OF GATHERING THIS MIMAMORI ECU INFORMATION IS DEPENDENT UPON THE DEALER TECHNICIAN. BECAUSE OF THIS NEED, ISUZU WILL COMPENSATE THE DEALER/TECHNICIAN FOR THEIR TIME AND EFFOR TO PROVIDE CRITICAL INFORMATION. WHEN A VEHICLE IS PRESENTED TO A DEALER FOR REPAIR AND A DTC IS STORED IN ONE OR MORE OF THE CONTROL MODULES LISTED BELOW, ISUZU ENGINEERING REQUESTS THE MIMAMORI ECU INFORMATION BE DOWNLOADED AND SYNCHRONIZED. IMPORTANT: PERFORM THE MIMAMORI ECU DOWNLOAD BEFORE CLEARING THE DTC AND BEFORE DIAGNOSING THE VEHICLE. BE SURE THE INFORMATION IS SYNCHRONIZED BEFORE CLAIM SUBMISSION. ISUZU ENGINEERING WILL BE REVIEWING ALL CLAIMS FOR THIS DATA. -ENGINE CONTROL MODULE (ECM) -TRANSMISSION CONTROL MODULE (TCM) -DIESEL EXHAUST FLUID (DEF) CONTROL MODULE
IB19-N-001
DIESEL ENGINES ISUZU COMMERCIAL TRUCK OF AMERICA IS PLEASED TO ANNOUNCE THE RELEASE OF OEM AND FLEET VALUE (FV) ELECTRICAL WIRE CONNECTORS FOR CERTAIN ISUZU N-SERIES AND F-SERIES TRUCKS. IN SOME INSTANCES, THE ELECTRICAL CONNECTORS LISTED IN THIS BULLETIN CAN BE A COST-EFFECTIVE REPAIR ALTERNATIVE TO REPLACING AN ENTIRE WIRING HARNESS, THEREBY REDUCING THE OPERATING EXPENCE FOR YOUR CUSTOMERS. PLEASE SEE THE TABLE BELOW FOR DETAILS REGARDING THE ELECTRICAL CONNECTORS CURRENTLY AVAILABLE
SB19J001A
SOME CUSTOMERS MAY EXPERIENCE ISSUES WITH OIL DRIPPING FROM THE AIR CLEANER OR AN OIL SOAKED FILTER ELEMENT, ALONG WITH ILLUMINATED CHECK ENGINE (CEL) AND CHECK AIR FILTER WARNING LAMPS. THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF A NEW AIR INLET DUCT THAT WILL REDUCE THE PCV OIL REMNANTS ENTERING THE AIR CLEANER AND AN UPDATED DRAIN PLATE THAT WILL PREVENT GEAR TRAIN OIL SPLASH FROM ENTERING THE PCV SYSTEM. SEE THE SERVICE PROCEDURE IN THIS BULLEIN FOR PARTS AND INSTALLATION INFORMATION.
IB13R001C
ISUZU N-SERIES TRUCKS EQUIPPED WITH OPTIONAL ISUZU-AUTHORIZED ALPINE BLUETOOTH RADIO (RPO CODES I8H, I1V, OR I2V) THIS BULLETIN OUTLINES THE PROCEDURES FOR USING THE ALPINE EXCHANGE PROGRAM (THE "EXHANGE PROGRAM"). THE EXCHANGE PROGRAM MUST BE USED WHEN ANY ALPINE RADIO COVERED BY THIS BULLETIN IS REPAIRED UNDER WARRANTY AND MAY ALSO BE USED FOR RADIO REPAIRS NOT COVERED UNDER WARRANTY. CONTACT ALPINE DIRCTLY FOR PRICING AND PAYMENT METHODS APPLICABLE TO RADIO REPAIRS NOT COVERED UNDER WARRANTY.
SB18C001A
SOME CUSTOMERS MAY COMPLAIND ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS OF THE AFFECTED N-SERIES AND FTR TRUCKS. TO CORRECT THIS CONDITION ISUZU COMMERCIAL TRUCK OF AMERICA, INC (ITCA) IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENGER DOORS.
SB19L002
ISUZU COMMERCIAL TRUCK OF AMERICA IS PLEASED TO ANNOUNCE THE AVAILABILITY OF A FRONT FRAME MOUNTED HEATED FUEL SEDIMENTER KIT FOR 2011MY-2017MY N-SERIES TRUCKS EQUIPPED WITH A 5.2L 4HK1 DIESEL ENGINE. INSTALLING THESE KITS CAN HELP MINIMIZE THE CHANCES OF FUEL FILTERS BECOMING CLOGGED DUE TO GELLING IN COLD WEATHER CONDITIONS. THE KIT PART NUMBER, ORDERING INFORMATION, AND INSTALLATION INSTRUCTIONS ARE IN THIS BULLETIN. THESE KITS ARE NOT DESIGNED FOR USE ON 2018 MY AND NEWER ISUZU TRUCKS.
IB18X001B
IDA IS A PILOT DIAGNOSTIC PROGRAM WHICH ANALYZES DTCS (CURRENTLY 29) AND PROVIDES QUICK AND EASY TO UNDERSTAND REPAIR SOLUTIONS. UTILIZING DATA CAPTURED DURING AN ISUZU MIMAMORI ECU (HEALTH REPORT) DOWNLOAD AND ACCESSIBLE FROM www.IsuzuTruckService.com, ISUZU DEALER TECHNICIANS WILL BE ABLE TO CLICK THE IDA TAB AND THE ANALYZED DTCS FOR THEIR DEALERSHIPS. EACH ANALYZED DTC WILL HAVE A RECOMMENDED REPAIR OR PROCEDURE. DETAILED INSTRUCTIONS FOR USING IDA ARE INCLUDED IN THIS BULLETIN.
SB18N001A
SOME CUSTOMERS MAY COMPLAIN OF AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LIGHT (MIL) ASSOCIATED WITH DIAGNOSTIC TROUBLE CODE (DTC) U0106, LOST COMMUNICATION WITH GLOW PLUG CONTROL MODULE (GPCM). THIS CONDITION MAY BE THE RESULT OF WATER INTRUSION INTO THE GPCM CONNECTOR. WATER FROM RAIN AND OTHER OUTSIDE SOURCES CAN POOL IN THE GLOW PLUG RECESSED AREA ON THE OUTSIDE OF THE CYLINDER HEAD. IF ENOUGH WATER ACCUMULATES, IT CAN SEEP INTO THE GLOW PLUG HARNESS THROUGH THE TERMINAL ENDS AND ENTER THE GPCM CONNECTOR, CAUSING THIS DTC TO SET. IF THIS DTC IS FOUND AND EVIDENCE OF WATER IS PRESENT IN THE GPCM CONNECTOR, REPLACE THE GLOW PLUG HARNESS TERMINALS AND REAR PANEL COVER AS OUTLINED IN THE SERVICE PROCEDURE IN THIS BULLETIN. THE REPLACEMENT TERMINAL ENDS ARE SEALED SO THAT WATER CANNOT GET INOT AND THROUGH THE WIRE.
SB19L001
THE DUAL FUEL TANK CONTROL MODULE AND WIRING HARNESS ASSEMBLY PREVIOUSLY SUPPLIED BY AIPDN AS REPLACEMENT PARTS FOR THE TRAX II DUAL FUEL TANK OPTION ARE NO LONGER AVAILABLE. IF EITHER ONE OF THESE COMPONENTS REQUIRES REPLACEMENT THE ENTIRE SYSTEM MUST BE CONVERTED TO A NEW TRAX 3 CONFIGURATION. THIS BULLETIN PROVIDES THE INSTALLATION PROCEDURE AND THE REPLACEMENT PART NUMBERS FOR THE PARTS NEEDED FOR THE CONVERSION TO THE TRAX 3 CONFIGURATION. FOR REPAIRS THAT ARE STILL COVERED BY THE MANUFACTURER WARRANTY, CLAIM SUBMISSION INFORMATION IS ALSO PROVIDED. TO CONFIRM INSTALLATION IS COMPLETED CORRECTLY AND THE SYSTEM IS OPERATING NORMALLY, PERFORM THE SYSTEM TEST AT THE END OF THIS BULLETIN USING SPECIAL TOL NUMBER EN-53585 TRAX 3 AUXILIARY FUEL SYSTEM DIAGNOSTIC MODULE.
SB19J001
SOME CUSTOMERS MAY EXPERIENCE ISSUES WITH OIL DRIPPING FROM THE AIR LEANER OR AN OIL SOAKED FILTER ELEMENT, ALONG WITH ILLUMINATED CHECK ENGINE (CEL) AND CHECK AIR FILTER WARNING LAMPS. THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF A NEW AIR INLET DUCT THAT WILL REDUCE THE PCV OIL REMNANTS ENTERING THE AIR CLEANER AND AN UPDATED DRAIN PLATE THAT WILL PREVENT GEAR TRAIN OIL SPLASH FROM ENTERING THE PCV SYSTEM. SEE THE SERVICE PROCEDURE IN THIS BULLETIN FOR PARTS AND INSTALLATION INFORMATION.
IB18J002
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.
IB18X001A
IDA IS A PILOT DIAGNOSTIC PROGRAM WHICH ANALYZES DTCS (CURRENTLY 29) AND PROVIDES QUICK AND EASY TO UNDERSTAND REPAIR SOLUTIONS. UTILIZING DATA CAPTURED DURING AN ISUZU MIMAMORI ECU (HEALTH REPORT) DOWNLOAD AND ACCESSIBLE FROM WWW.ISUZUTRUCKSERVICE.COM, ISUZU DEALER TECHNICIANS WILL BE ABLE TO CLICK THE IDA TAB AND THE ANALYZED DTCS FOR THEIR DEALERSHIPS. EACH ANALYZED DTC WILL HAVE A RECOMMENDED REPAIR OR PROCEDURE. DETAILED INSTRUCTIONS FOR USING IDA ARE INCLUDED IN THIS BULLETIN.
IB18X002A
IMPORTANT: EFFECTIVE JUNE 1, 2018 ? THE IQC PROCESS WILL BE TRANSFERRED TO ISUZU TECHNICAL ASSISTANCE. AS OF JUNE 1, 2018, PLEASE CONTACT THE ISUZU TECHNICAL ASSISTANCE LINE AT 1-877-ISUZUCV (1-877-478-9828), PROMPT 3, PRIOR TO REPLACING ENGINES OR TRANSMISSIONS THAT ARE BELIEVED TO BE COVERED BY THE ISUZU NEW VEHICLE WARRANTY, ISUZU PARTS WARRANTY, GOLD STAR USED TRUCK WARRANTY AND/OR ALL EXTENDED POWERTRAIN WARRANTIES OFFERED BY ISUZU AS WELL AS OVER-THE COUNTER ENGINE AND TRANSMISSION ASSEMBLY REPLACEMENTS.WE ASK YOU TO CALL THE TAL SO THAT WE MAY OBTAIN FASTER AND MORE ACCURATE QUALITY INFORMATION ON FAILED ENGINES AND TRANSMISSION ASSEMBLIES AND IMPROVE THE RELIABILITY OF OEM AND SERVICE REPLACEMENT ENGINE AND TRANSMISSION ASSEMBLIES.
IB17X003A
AIPDN IS PLEASED TO ANNOUNCE THE AVAILABILITY OF INSTRUMENT CLUSTERS PROGRAMMED WITH THE VEHICLE?S MILEAGE FOR 2011MY TO CURRENT ISUZU N-SERIES VEHICLES.
IB10X001E
THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF DIESEL PARTICULATE FILTER (DPF) CLEANING RECOMMENDATIONS, INSPECTION PRACTICES, AND RECOMMENDED R&R PROCEDURES FOR SERVICE AND CLEANING SYSTEM AVAILABILITY.
IB08X002H
ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARD?S (CARB) OPTIONAL IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS ?CERTIFIED CLEAN IDLE? AND ARE ?EXEMPT? FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMENT PURSUANT TO SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR ?CERTIFIED CLEAN IDLE? VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE ?CERTIFIED CLEAN IDLE? LABEL LOCATED ON THE DRIVER?S SIDE DOOR PANEL.
IB10X001F
DIESEL PARTICULATE FILTER.
IB15-J-002B
A new Isuzu oil filter is now available for 2011MY and newer Isuzu N-Series vehicles equipped with 4HK1 diesel engines. The new oil filter?s bypass valve pressure has been changed to improve filtration in cold weather. As a result it is necessary for dealers to inventory this new oil filter cartridges for the affected model years
IB17X003
Instrument clusters now supplied with mileage programmed.
IB17L001
Damage to fuel systems, including to both low and high pressure components, often results from fuel contamination. Operating a vehicle?s diesel engine on fuels and additives that do not meet the vehicle manufacturer?s specifications for lubrication and cooling, or that have improper anti-corrosion properties, can cause drivability problems as well as component damage or even failure. Due to the tight tolerances on modern diesel engines, contaminants such as water can dilute the lubricating properties of diesel fuel and cause engine damage. For instance, water can lead to acid forming in the fuel system, which can be extremely caustic and harmful to the engine. Contamination of high pressure fuel system components may cause symptoms including, but not limited to, the following:
SB17-L-001
IF THE CURRENT DIAGNOSTIC CALLS FOR THE SUPPLY PUMP TO BE REPLACED, PLEASE PERFORM THE INSPECTION PROCEDURES OUTLINED IN THIS BULLETIN. THE PURPOSE OF THE INSPECTION PROCEDURE OUTLINED IN THIS BULLETIN IS TO PREVENT FAILURES RESULTING FROM INCOMPLETE INSPECTIONS CONDUCTED FOLLOWING A DIAGNOSIS CALLING FOR SUPPLY PUMP REPLACEMENT.
IB08-X-002F
ISUZU DIESEL ENGINES AVAILABLE IN THE ABOVE AFFECTED VEHICLES MEET THE CALIFORNIA AIR RESOURCE BOARDS (CARB) OPTIONAL IDLING EMISSIONS STANDARD OF 30 GRAMS PER HOUR OF OXIDES OF NITROGEN (NOX) WITH NO INCREASE IN THE EMISSION OF OTHER REGULATED POLLUTANTS. AS A RESULT THESE VEHICLES HAVE BEEN APPROVED AS CERTIFIED CLEAN IDLE AND ARE EXEMPT FROM THE ENGINE SHUTDOWN SYSTEM (ESS) REQUIREMENT PURSUANT TO SECTION 1956.8 OF TITLE 13, CALIFORNIA CODE OF REGULATIONS. AS REQUIRED BY THE ESS REGULATION, FOR CERTIFIED CLEAN IDLE VEHICLES, ISUZU HAS INTRODUCED A TAMPER RESISTANCE CERTIFIED CLEAN IDLE LABEL LOCATED ON THE DRIVERS SIDE DOOR PANEL. IT IS IMPORTANT THAT THIS LABEL REMAIN, PERMANENTLY, ON THE VEHICLE TO IDENTIFY IT AS CERTIFIED CLEAN IDLE. CARB REQUIRES THIS LABEL AS EVIDENCE THAT, AT THE TIME OF MANUFACTURE, THE ENGINE INSTALLED MET THE APPLICABLE EMISSION STANDARDS. SHOULD THE LABEL BE FOUND MISSING OR DAMAGED DURING AN INSPECTION, A CITATION AND PENALTIES MAY BE ISSUED. IF THE VEHICLE IS OPERATED IN CALIFORNIA WITH A DAMAGED OR MISSING CLEAN IDLE LABEL, ISUZU RECOMMENDS VEHICLE OPERATORS FOLLOW THE 5 MINUTE ESS REQUIREMENT BY MANUALLY TURNING OFF THE ENGINE. FOLLOWING THIS ESS REQUIREMENT WILL KEEP THE VEHICLE OPERATION COMPLIANT UNTIL A REPLACEMENT LABEL CAN BE INSTALLED. CLEAN AIR IDLE LABELS ARE PRINTED WITH A SERIAL NUMBER AND REGISTERED TO AN INDIVIDUAL VIN. AS A RESULT, A REPLACEMENT LABEL WILL ALSO INCLUDE A NEW SERIAL NUMBER WHICH MUST BE REGISTERED TO THE VEHICLES VIN BY THE MANUFACTURER. THE BELOW INFORMATION IS PROVIDED TO ASSIST IN ACQUIRING, REPLACING AND REGISTERING A REPLACEMENT LABEL.
IB07-X-003J
THE VEHICLE KEY HAS BEEN IMPROVED IN THE ABOVE AFFECTED VEHICLES. THE KEY DESIGN IS MORE ROBUST AND THE NUMBER OF CUTS IN THE KEY HAS BEEN INCREASED. AS A RESULT, IMPORTANT INFORMATION IS PROVIDED IN THIS BULLETIN TO ASSIST DEALERS AND CUSTOMERS IN CREATING REPLACEMENT KEYS WHEN NECESSARY. THE PART NUMBER, EQUIPMENT AND KEY NUMBER CONVERSION INFORMATION ARE LISTED BELOW:
IB10-X-004H
IN AN EFFORT FOR CONTINUOUS IMPROVEMENT, ISUZU HAS A NEED TO OBTAIN MIMAMORI ECU (HEALTH REPORT) INFORMATION. IT IS CRITICAL TO OBTAIN MIMAMORI ECU INFORMATION DURING THE REPAIR PROCESS. THIS INFORMATION WILL BE USED BY ISUZU ENGINEERING TO HELP DETERMINE "ROOT CAUSE" FOR CUSTOMER'S CONCERNS AND DEVELOP/VALIDATE A FIELD FIX.
IB11-L-003B
THIS INFORMATION IS BEING ISSUED TO HELP DEALERS IDENTIFY A POTENTIAL SOURCE FOR FUEL CONTAMINATION. 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 FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC ISUZUS 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.
IB16-F-001B
SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.
IB16-J-003
ISUZU HAS DEVELOPED NEW PARTS TO BE USED WHEN REPLACING THE DEF COOLANT PIPE ASSEMBLY ON N-SERIES VEHICLES EQUIPPED WITH THE 5.2L 4HK1 ENGINE. IN ORDER TO INSTALL A NEW DEF COOLANT PIPE ASSEMBLY PROPERLY, YOU MUST USE A NEW BRACKET AND A NEW CLIP.
IB12-L-001A
SOME CUSTOMERS MAY COMPLAIN THAT THE DEF TANK SIGHT TUBE AND DEF LEVEL GAUGE IN THE MID (MULTI INFORMATION DISPLAY) DO NOT MATCH. THE DEF TANK SIGHT TUBE IS USED FOR FILLING PURPOSES ONLY IN ORDER TO PREVENT OVERFILLING. ACTUAL DEF LEVEL SHOULD ONLY BE DETERMINED BY VIEWING THE DEF LEVEL GAUGE IN THE MID.
IB15-J-002A
A NEW ISUZU OIL FILTER IS NOW AVAILABLE FOR 2011MY AND NEWER ISUZU N-SERIES VEHICLES EQUIPPED WITH 4HK1 DIESEL ENGINES. THE NEW OIL FILTERS BYPASS VALVE PRESSURE HAS BEEN CHANGED TO IMPROVE FILTRATION IN COLD WEATHER. AS A RESULT IT IS NECESSARY FOR DEALERS TO INVENTORY THIS NEW OIL FILTER CARTRIDGES FOR THE AFFECTED MODEL YEARS.
IB15-L-001A
AN INVESTIGATION OF RETURNED NUMBER 1 AND 2 EGT SENSORS TO THE WARRANTY PARTS CENTER HAS IDENTIFIED A COMMON OCCURRENCE OF SENSORS BEING REPLACED WITH NO TROUBLE FOUND (NTF). IN ORDER TO BETTER SERVICE THE CUSTOMER AND STOP THE UNNECESSARY REPLACEMENT OF THESE SENSORS, ISUZU HAS PROVIDED THE FOLLOWING INSPECTION INFORMATION TO AID THE TECHNICIAN IN PROPERLY DIAGNOSING EGT SENSORS 1 AND 2.
IB16-F-001A
SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.
IB15-K-002A
AN INVESTIGATION OF INHIBITOR SWITCHES (REPLACED FOR DTC P0707) RETURNED TO THE WARRANTY PARTS CENTER HAS IDENTIFIED A HIGH FREQUENCY OF SWITCHES BEING REPLACED WITH NO TROUBLE FOUND (NTF). THE MOST LIKELY ROOT CAUSES OF THE P0707 DTC ARE AN OPEN F-18 FUSE OR A STRETCHED AND/OR IMPROPERLY ADJUSTED SHIFT CABLE. IN ORDER TO BETTER SERVICE THE CUSTOMER AND TO STOP THE UNNECESSARY REPLACEMENT OF INHIBITOR SWITCHES, ISUZU RECOMMENDS TECHNICIANS TO FIRST CHECK THE F-18 FUSE, THEN CHECK, AND IF NECESSARY, ADJUST THE SHIFT CABLE BEFORE DIAGNOSING DTC P0707. THE SHIFT CABLE ADJUSTMENT PROCEDURE IS PROVIDED BELOW FOR YOUR REFERENCE. IF ADDITIONAL INFORMATION IS REQUIRED, REFER TO THE APPROPRIATE SERVICE MANUAL.
IB12-J-003C
PROPER INSTALLATION OF THE FUEL INJECTOR PIPES INTO A LONG BLOCK ASSEMBLY. THE FUEL INJECTION PIPES SHOULD BE INSTALLED ONTO THE NEW LONG BLOCK ASSEMBLY AFTER FIRST INSTALLING THE COMMON RAIL. WHEN INSTALLING THE FUEL INJECTION PIPES, FOLLOW THE PROCEDURE BELOW TO ENSURE PROPER MATING OF THE FUEL INJECTOR HIGH PRESSURE INLET, AND THE FUEL INJECTION PIPES.
SB16-C-001
SOME CUSTOMERS MAY COMPLAIN ABOUT WIND NOISE AND/OR WATER INTRUSION INTO THE CAB FROM THE DRIVER AND/OR PASSENGER DOORS OF THE SINGLE CAB N-SERIES TRUCK. TO CORRECT THIS CONDITION ISUZU IS OFFERING A NEW DOOR WEATHER STRIP TO IMPROVE SEALING OF THE DRIVER AND PASSENGER DOORS FOR SINGLE CAB TRUCKS.
16-NA-222
THIS INFORMATIONAL BULLETIN PROVIDES THE TECHNICIAN WITH WHAT MAY HAPPEN TO AN ENGINE DUE TO LACK OF MAINTENANCE.
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 FILTERS, POOR ENGINE PERFORMANCE, CHECK ENGINE LIGHT ILLUMINATION, FUEL SYSTEM (LINES AND TANK) CORROSION (RUST), ETC ISUZUS 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.
ONV1605_20160527
IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.
CB16-E-001
IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.
DNV1605_20160520
IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.
IN_V1605_2016051
IN SOME 2012-2016MY ISUZU STRIPPED CHASSIS (REACH VANS) AND 2011-2016MY NPR-HD DIESEL TRUCKS, THE ORIGINAL FACTORY-INSTALLED GREASE IN THE FRONT WHEEL BEARINGS MAY DEGRADE UNDER CERTAIN CIRCUMSTANCES. IF LEFT UNATTENDED, THE FRONT WHEEL BEARINGS COULD EVENTUALLY SEIZE OR LOOSEN. TYPICALLY THIS CONDITION IS PRECEDED BY A NOTICEABLE GROWLING NOISE AND CAN BE AVOIDED WITH TIMELY SERVICING OF THE FRONT WHEEL BEARINGS.
IB16-F-001
SOME CUSTOMERS OF N-SERIES VEHICLES MAY COMPLAIN OF AN AUDIBLE CLICKING OR CHATTERING NOISE COMING FROM THE REAR OF THE VEHICLE WHILE MAKING TIGHT TURNS. THIS CONDITION MAY BE DUE TO INCORRECT AXLE FLUID INSTALLED AT THE LAST SCHEDULED MAINTENANCE OR DURING A PREVIOUS REPAIR. THE CONDITION CAN ALSO RESULT FROM DELAYED OR SKIPPED MAINTENANCE RESULTING IN DEGRADATION OF AXLE FLUID.
IB12-N-001E
ISUZU 2007-2015 MY ISUZU N-SERIES: IN EXTREME COLD WEATHER, THERE'S NO CRANK/NO START, NO FUEL PRESSURE/ FUEL PUMP INOPERATION. *LJ
CB-14-L-001
ISUZU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL POLICY ADJUSTMENT REGARDING THE VARIOUS DIAGNOSTIC TROUBLE CODES (DTC) P2201, P2206, P2207, P1490 OR P2000, HAVE BEEN SET DUE TO AN INTERNAL FAILURE OF SELECTIVE CATALYST REDUCTION (SCR) SYSTEM AND ILLUMINATING CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL), EXHAUST SYSTEM WARNING LAMP AND DIESEL EXHAUST FLUID (DEF) INDICATOR LAMP. MODEL 2011 N SERIES. *PE
IB-12-N-001-A
ISUZU: SOME VEHICLES MAY EXPERIENCE A NO CRANK, NO START, NO TOOL COMMUNICATION CONDITION IN EXTREMELY COLD WEATHER SITUATIONS. THIS FAILURE MAY BE CAUSED BY A STUCK ECM MAIN RELAY (X-30). ALSO INCLUDED MODEL N-SERIES MODEL YEAR 2014-2015. *JS UPDATED 04/23/2014 *JS UPDATED 11/14/14. *PE
IB-14-X-001
ISUZU: INFORMATION REGARDING CORROSION INHIBITOR IMPROVEMENT THAT CHANGES COLOR OF COOLANT TO A DARK COLOR AND IS ADDED AT PORT TO BOTH RADIATOR AND SURGE TANK. *PE
SPA-CB-14L001
ISUZU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DUE TO AN INTERNAL FAILURE OF THE NUMBER 1 NOX SENSOR OF SELECTIVE CATALYST REDUCTION (SCR) SYSTEM IN CERTAIN VEHICLES, VARIOUS DIAGNOSTIC TROUBLE CODES (DTC) WILL BE SET. MODEL 2011 N SERIES. *PE
SB-12-K-003-A
ISUZU: REPROGRAMMING TRANSMISSION CONTROL MODULE (TCM), WITH REVISED CALIBRATIONS, DUE TO ILLUMINATION OF CHECK TRANSMISSION LAMP, WILL PREVENT UNNECESSARY REPLACEMENT OR REPAIRS TO AISIN 6 SPEED AUTOMATIC TRANSMISSION. MODEL 2007-13 N SERIES, W SERIES. *PE
SB-14-L-001
ISUZU: MOST PUMP FAILURES ARE DUE TO DEBRIS CAUSING A STICK/SEIZING CONDITION OF THE INTERNAL CONTROL MECHANISM. IMPROVED FUEL FILTER KITS WERE DEVELOPED. ALSO INCLUDED MAKE: ISUZU/ MODEL: N-SERIES/ MODEL YEAR: 2014. *JS
IB-12-J-003-B
ISUZU: INFORMATION CONCERNING THE INSTALLATION OF THE FUEL INJECTOR PIPES INTO A LONG BLOCK ASSEMBLY. 1999 - 2002 ISUZU FSR/FTR/FVR, 1999 - 2009 CHEVROLET OR GMC T6500/T7500/T8500, 2000 - 2004 CHEVROLET OR GMC WT5500, 2000 - 2004 ISUZU FRR, 2003 - 2009 CHEVROLET OR GMC C6500/C7500/C8500, 2004 - 2009 ISUZU FTR/FVR/FXR, 2005 - 2007 ISUZU HTR/HVR/HXR, 2005 - 2010 CHEVROLET OR GMC W3500/W4500/W5500, 2005 - 2015 ISUZU NPR/NPRHD/NQR/NRR, AND 2013 - 2014 ISUZU NPR. *JS
IB-12-J-004-B
ISUZU: INFORMATION CONCERNING EXHAUSTS LEAKS, LOSS OF COOLANT OR OVER HEATING CONDITION AFTER A RECENT REPAIR TO ONE OR BOTH EGR COOLERS. APPPLIES TO 2007 - 2010 CHENVROLET OR GMC W3500/W4500/W5500, 2007 - 2015 ISUZU NPR/NPRHD/NQR/NRR, 2007 CHEVROLET OR GMC C6500/C7500/C8500, 2007 CHEVROLET OR GMC T6500/T7500/T8500, 2007 ISUZU FTR/FVR/FXR, AND 2007 ISUZU HTR/HVR/HXR. *JS
IB-14-J-002
ISUZU: INFORMATION CONCERNING THE TURBOCHARGER INSPECTION. A COMMON OCCURRENCE OF TURBOCHARGES BEING REPLACED FOR INTERNAL OIL LEAKS. RESULTS SHOW THAT THERE IS NO FAULT WITH THE TURBOCHARGER. THE PERCEIVED OIL LEAK ACTUALLY MAY BE A NORMAL CHARACTERISTIC OF THE CLOSED POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM OR SOME OTHER UNIDENTIFIED CONDITION. APPLIES TO MAKE: ISUZU MODEL: N-SERIES MODEL YEAR: 2011-2015. *JS
SB-09-J-002-C
ISUZU (GMC, CHEVROLET): DIESEL ENGINES EQUIPPED WITH EGR COOLER WAS DIAGNOSE FOR LEAKS WITH AN EGR COOLER TESTER CONSISTING OF PRESSURE REGULATOR. MODELS ISUZU N SERIES-2005-2015, GMC/CHEVROLET W SERIES 2005-10, ISUZU F SERIES 2007-09 AND GMC/CHEVROLET T AND C SERIES 2007-09. *PE UPDATED 04/29/2014 *JS
IB-13-E-001
ISUZU: MAINENANCE AND LUBRICATION REMINDER OF THE FRONT AXLE KINGPIN. THIS IS IMPORTANT FOR THE STEERING SYSTEM. *KB
IB-13-E-002
ISUZU: INSTALLATION OF A THREE BOND 1215 PART IS RECOMMENDED WHEN INSTALLING THE KINGPIN SEALING PLUG. *KB
SB-13-J-001
ISUZU: A CRACK MAY HAVE DEVELOPED IN THE VACUUM HOSE FOR TURBOCHARGER VACUUM SWITCHING VALVE CAUSING ILLUMINATION OF CHECK ENGINE MALFUNCTION INDICATOR. MODELS 2011-2012 N SERIES. *PE UPDATED 8/21/13. *PE
IB-12-L-002
ISUZU: DUE TO DTC FOUND, HARNESS CONNECTORS FOR CORROSION, POOR CONNECTION, DAMAGE SHOULD BE INSPECTED FOR CAUSE OF LOW DIESEL EXHAUST FLUID (DEF) LIGHT AND CHECK ENGINE LIGHT. MODELS 2011-2013 N SERIES. *PE
SB-12-K-002
ISUZU: DUE TO INSECT NESTING AND/OR DEBRIS LEFT BY FLOODING, FLUID IS LEAKING AT TOP OF AUTOMATIC TRANSMISSION DIPSTICK TUBE, AND A NEW BREATHER HOSE VENT WAS DESIGNED TO REDUCE THIS CONDITION. MODELS 2007-2012 N SERIES, 2007-2010 W SERIES. *PE
IB-11-J-005-A
ISUZU: THE ENGINE CONTROL MODULE (ECM) MAY CAUSE A MALFUNCTION IN THE INDICATOR LAMP TO ILLUMINATE. THE CALIBRATIONS AND LATEST SOFTWARE FOR ECM NEEDS TO BE REPROGRAM. MODEL N SERIES. MODEL YEARS 2011-1012 *PE
SB-12-J-002-A
ISUZU: EXPERIENCING REDUCED ENGINE VEHICLE SPEED AND CHECK ENGINE MALFUNCTION INDICATOR LIGHT ILLUMINATED. *PE
SB-10-L-001
ISUZU: SERVICE PROCEDURE TO REPLACE THE FUEL PUMP. 2011 N-SERIES. *RM UPDATED 7/8/11. *PE
IB-11-L-003
ISUZU: THERE IS FUEL CONTAMINATION AND IT COULD BE CAUSED BY AN IMPROPERLY INSTALLED FUEL FILLER NECK. 2011-2012 N SERIES. *RM
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.