DPF, SCR, Storage, and Cautions
Contents
1. PAGE 23 1 2014 Isuzu Truck All Fluids and Lubricants Caution Any fluids or lubricants added to the chassis during the final manufacturing process must meet Isuzu s fluids and lubricants specifications These fluids and lubricant specifications vary based on model year and chassis model code A recommended fluids list based on model and model year can be found in the Vehicle Owner s Manual or on line at www isuzutruckservice com Low Speed Applications for N Series Chassis Any low speed vehicle applications using the Aisin Transmission such as sweeper highway striping and road side mowing airport service must adhere to the following guidelines in order to prevent the over heating of the automatic transmission fluid Factory Recommendation Select Range 1 for low speed operations under 11 mph 18km h Select Range 2 for low speed operation under 22 mph 86km h Auxiliary Transmission Cooler Warning Installation of Auxiliary automatic transmission fluid cooler will void warranty on transmission engine Transmission Temperature Warning Lamp Automatic transmission fluid temperature warning lamp illuminates over 140 Centigrade 284 Fahrenheit Fuel Tank Caution Fuel fill kit must be installed on cab chassis if it will be driven for an extended distance Note fuel tank kit provides venting for the fuel tank Tapping into Engine Cooling System Do not connect any auxiliary heating devices to the chassis cooling2. e Driver MUST choose one of the following options to perform this regeneration If one of the following options is not completed Limp Home Mode may be activated e Drive vehicle above 30mph e ECM monitors sensor input and determines if regeneration is possible Running e The ECM commands the green DPF lamp ON Option 1 e Vehicle should be driven normally Emergency Regeneration e When idling at a stop the exhaust brake may activate and the idle speed may increase Important If the parking brake is set or the Park position is selected the automatic regeneration will be cancelled e Set the parking brake engine running and transmission in Park or Neutral Position e Press DPF switch Switched e Green DPF lamp comes ON Option 2 e Engine RPM increases and exhaust brake activation for about 20 minutes e f this is interrupted must press DPF switch to restart process Important Once Emergency Switched or Selectable Regeneration Modes have been selected the Automatic and Emergency Running Modes are no longer available Automatic and Emergency running modes will become available after Switched or Selectable DPF regeneration is completed Note For quickest possible regeneration be sure the vehicle is at operating temperature before performing selectable regeneration e Engine running and in Park Position e Parking brake is applied Selectable e Press and hold the DPF switch until the DPF switch jewel lamp comes ON Regeneratio
3. DEF and similar urea based products are widely used today for a variety of agricultural and industrial needs Isuzu DEF is API certified and meets IS022241 specifications for purity and composition while being Non toxic and non polluting Non flammable Stable and colorless Non hazardous DEF should be stored in an indoor place with good ventilation avoiding direct sunlight if possible Be sure containers are sealed properly to avoid contamination and evaporation To maximize shelf life ideal storage temperature is below 30 C 86 F and above 11 C 12 F to prevent freezing If frozen DEF can be thawed and used without any concerns DEF SAFETY Though it should be harmless for physical contact there may be a rare case to induce inflammation depending on the body constitution so make sure to take following actions In the event that the fluid does come into contact with your skin wash it off with water Although it is rare a person with sensitive skin may suffer from irritation If you come into contact with DEF flush the affected area with soap and or water If irritation or redness develops or persists seek medical attention If it is accidentally swallowed drink 1 2 glasses of water or milk and seek immediate medical attention If it does come into contact with the eyes immediately rinse it off with a large amount of water for at least 15 minutes and then seek medical attention Customer Assistance in
4. locating DEF DEF is available from all authorized Isuzu dealers In addition the U S Department of Energy has created an on line DEF locator that can be accessed at http www afdc energy gov afdc locator def The American Petroleum Institute API also maintains a list of API certified distributors of DEF on their web page at http www apidef org searchresults asp 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page PAGE 23 9 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page PREPARATION OF VEHICLES FOR STORAGE BEYOND 30 DAYS In the event vehicles are to be stored for extended periods beyond 30 days the following additional maintenance items are suggested NOTE When vehicles are stored outside particularly along coastal areas paint and bright metal deterioration will be more rapid due to prevailing salt water atmosphere and high humidity For this reason it may be necessary to wash the vehicle and wax the chrome and stainless steel metal parts at least once a month NOTE To prevent the possibility of a build up of mildew open the doors to air the vehicle out at least once a month depending upon climatic condition If there is condensation wipe the condensation dry with a clean cloth and air out the vehicle A Block out mechanical clutches by holding the clutch pedal partially depressed approximately 1 2 way with wooden blocks or bracing This
5. not completed Limp Home Mode may be activated e Drive vehicle above 30mph Running e ECM monitors sensor input and determines if regeneration is possible Emergency Regeneration Option 1 e The ECM commands the green DPF lamp ON eVehicle should be driven normally Note If idling at a stop or in Park during this regeneration mode the engine RPM will increase and the exhaust brake will activate e Set the parking brake engine running and transmission in Park or Neutral Position e Press DPF switch Emergency Regeneration Switched e Green DPF lamp comes ON Option 2 e Engine RPM increases and exhaust brake activation for about 20 minutes e f this is interrupted must press DPF switch to restart process Important Once Emergency Switched or Selectable Regeneration Modes have been selected the Automatic and Emergency Running Modes are no longer available Automatic and Emergency running modes will become available after Switched or Selectable DPF regeneration is completed Note For quickest possible regeneration be sure the vehicle is at operating temperature before performing selectable regeneration e Engine running and in Park Position e Parking brake is applied Selectable e Press and hold the DPF switch until the amber DPF lamp turns ON Regeneration e If amber DPF lamp goes Off regeneration is not necessary e If the amber DPF lamp stays on ON it means that regeneration is possible e Press the DPF swit
6. system The chassis cooling system is part of the vehicle emission system and is used to thaw DEF fluid and meet mandatory emission thaw times Understanding DPF Diesel Particulate Filter Regeneration 2007 Bulletins 2007 2013 Model Years Information IBO7 L 002A Understanding DPF Diesel Particulate Filter Regeneration Modes of Regeneration Quick Reference Guide Issue Date December 2007 Affected Vehicle e 2007 and newer Isuzu N Series e 2007 and newer GMC and Chevrolet W Series e 2007 and newer Isuzu F Series e 2007 and newer GMC and Chevrolet T Series e 2007 and newer GMC and Chevrolet C Series Equipped with DPF Diesel Particulate Filter 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page Service Information PAGE 23 2 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 available in vehicles delivered from Port after 09 01 20x07 For your convenience this video may be downloaded from the following websites WWW ISUZUTRUCKSERVICE COM WWW ISUZUCV COM WWW ISUZUCV ORG and WWW ISUZUDIESELENGINE COM N W Series F T Series 2014 Isuzu Truck Gree
7. F is frozen in the DEF tank ADDING DEF Under normal conditions DEF can be added simply by removing the DEF tank fill cap and pouring in DEF A few points to be aware of when transferring DEF from its original container to the DEF tank are 1 Be sure the outside of the container is clean from any debris 2 If using a funnel or pump to transfer DEF be sure to use equipment exclusively for DEF made from polyethylene resin or stainless steel 3 Do not overfill the DEF tank Take care not to spill DEF When DEF dries it will leave a crystalline residue This condition is normal Wash with water or wipe away the residue to prevent it from entering the DEF tank If DEF is spilled on the body or frame it may cause the metal to rust so wipe it off and then rinse it away with water Note For cold weather climates ambient temperatures below 11 C 12 F Isuzu does not recommend parking the vehicle for long periods with the refill diesel exhaust fluid DEF warning light on in cold weather The DEF low level warning system may not reset when DEF is added Take the following actions to avoid this condition in cold weather 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 23 7 2014 Isuzu Truck PAGE DPF SCR Storage and Cautions continued from previous page ADDING DEF continued 1 Refill the DEF as soon as possible after parked vehicle 2 Turn the engine control switch to the ON p
8. ch again to start regeneration e The green DPF lamp and then the amber DPF lamp will turn ON indicating that regeneration is taking place This will take about 20 minutes e Engine RPM will increase and the exhaust brake will activate Caution The following actions will interrupt the stationary type regeneration Failure to restart and complete the regeneration cycle will result in filter clogging e Applying the accelerator pedal e Shifting into gear with Automatic Transmission e Pressing the clutch pedal Manual Transmission e Engine speed increases Note This condition should only be diagnosed and repaired by an Isuzu trained technician e MIL lamp is on vehicle speed is reduced Limp Home Mode e Technician diagnosis required e IDSS induced regeneration fast or slow based on diagnosis e Slow process takes 2 hours 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page F T C Series Regeneration Modes e ECM monitors sensor inputs and determines DPF regeneration is necessary Automatic e The ECM commands the green DPF lamp ON Regeneration e Vehicle should be driven normally Important If the parking brake is set or the Park position is selected the automatic regeneration will be cancelled e This process occurs at 180 mile intervals or sooner PAGE 23 4 e Orange or red light comes ON
9. ction SCR INFORMATION The Selective Catalyst Reduction SCR system reduces nitrogen oxide NOx emissions emitted from a diesel engine The SCR system reduces NOx by adding injecting Diesel Exhaust Fluid DEF into the exhaust system and inducing a reaction converting NOx into water vapor and nitrogen This reaction takes place without any driver involvement In addition as long as the DEF tank is regularly filled with good quality DEF and at a satisfactory level above empty the driver may never notice the SCR system It is the driver s responsibility to keep a good supply of quality DEF in the DEF tank for the proper operation of the SCR system The SCR system will continuously monitor itself and the NOx reduction performance for any condition that will reduce or stop this emission reduction The information provided in the remainder of this bulletin will outline the SCR system functions common characteristics of the SCR system DEF quality requirements and indicator and warning lights should the SCR system detect an incorrect fluid or if the DEF level in the DEF tank becomes too low SCR System Operation Adding DEF DEF Low Level Warning System DEF Quality and Storage DEF Safety Locating DEF 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 23 6 PAGE 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page SCR SYSTEM OPERATION AND THE DRIVER The SCR sys
10. e table and engine power will be reduced so the vehicle speed will not exceed 55 MPH 89 km h Stage 2 If driving is continued without adding DEF approximately 200 miles 820 km the DEF gauge warning and indicator lights will begin blinking Again engine power will be reduced so the vehicle speed will not exceed 35 MPH 56 km h Stage 3 If driving is continued until the DEF tank is empty the DEF gauge will change color from amber to red and the warning and indicator lights will begin to blink faster Engine power will still be reduced so the vehicle speed will not exceed 35 MPH 56 km h The vehicle speed will be limited to 5 MPH 8 km h either when the vehicle is stopped after driving further on approximately 35 miles 66 km or when the engine is restarted Stage 4 The DEF gauge is red the indicator light is blinking and the buzzer is beeping continuously indicates the vehicle speed is limited to 5 MPH 8 km h 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 23 8 PAGE 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page DEF QUALITY AND STORAGE Diesel Exhaust Fluid is a urea based chemical reactant designed specifically for use in SCR systems to reduce NOx emissions The raw materials used to produce DEF include natural gas coal or other petroleum products DEF is prepared by combining high purity urea with deionized water to create a 32 5 solution
11. ended periods beyond one year the following additional maintenance is required 1 Drain and refill Diesel Exhaust Fluid DEF 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page PAGE 23 10 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page Limited Slip Differential Fluid Should it become necessary to add fluid to the rear axle of a chassis equipped with a limited slip differential please consult the Isuzu Owners Manual for the appropriate selection of lubricants to be used Axle Housing Stamp Ratio Stand LSD Axle Axle 4 300 SO HO 4 555 C9 D9 4 777 SQ H9 5 125 C8 D8 5 375 S8 H8 5 571 A7 B7 5 857 C7 D7 2014 Isuzu Truck
12. n DPF Lamp When illuminated this lamp indicates the DPF is actively regenerating No action is required Amber Orange or Red DPF Lamp One indicator with two possible colors When this lamp is Amber Orange the DPF filter is dirty Filter regeneration is necessary at this time When driving continues without regeneration this DFP lamp will change from Amber Orange to RED Continuing to drive the vehicle with the red lamp illuminated can cause filter damage Malfunction Indicator Lamp MIL This lamp indicates a possible concern with engine and or emissions performance Reduced Engine Power Lamp F T C Series Only This lamp indicates when a noticeable change in vehicle performance may occur C Series DPF SCR Storage and Cautions continued on next page 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page PAGE 23 3 N Series and W Series Regeneration Modes e ECM monitors sensor inputs and determines DPF regeneration is necessary Automatic e The ECM commands the green DPF lamp ON Regeneration e Vehicle should be driven normally Note If idling at a stop or in Park during this regeneration mode the engine RPM will increase and the exhaust brake will activate e This process occurs at 180 mile intervals or sooner e Amber or red light comes ON e Driver MUST choose one of the following options to perform this regeneration If one of the following options is
13. n e If the jewel lamp goes Off regeneration is not necessary e f the jewel lamp blinks it means that regeneration is possible e Press the DPF switch again to start regeneration e The orange DPF lamp green DPF lamp and then the jewel lamp will turn ON indicating that regeneration is taking place This will take about 20 minutes e Engine RPM will increase and the exhaust brake will activate Caution The following actions will interrupt the stationary type regeneration Failure to restart and complete the regeneration cycle will result in filter clogging e Applying the accelerator pedal e Shifting into gear with Automatic Transmission e Pressing the clutch pedal Manual Transmission e Engine speed increases e Releasing the parking brake Note This condition should only be diagnosed and repaired by an Isuzu trained technician e MIL and or Reduced Engine Power Lamp is ON vehicle speed is reduced Limp Home Mode e Technician diagnosis required e IDSS induced regeneration fast or slow based on diagnosis e Slow process takes 2 hours 2014 Isuzu Truck DPF SCR Storage and Cautions continued on next page 23 5 PAGE 2014 Isuzu Truck DPF SCR Storage and Cautions continued from previous page Understanding SCR Selective Catalyst Reduction Introduction to Selective Catalyst Reduction SCR and Diesel Exhaust Fluid DEF e 2013 MY Isuzu N Series Equipped with Selective Catalyst Redu
14. osition from the LOCK position 3 Wait for the warning buzzers and warning lights to turn off 4 If the buzzer does not stop return the engine control switch back to the LOCK position and add more DEF and then start over the step 2 above 5 Turn the engine control switch to the LOCK position Turn the engine control switch to the ON position from the LOCK position 6 Wait for the warning buzzers and warning lights to turn off 7 If the buzzer does not stop return the control switch back to the LOCK position and add more DEF and then start over the step 2 above 8 Turn the engine control switch to the LOCK position DEF LOW LEVEL WARNING SYSTEM To avoid running out of DEF the SCR system will turn on warning and indicator lights and reduce engine power in progressive stages to encourage adding DEF The following is a summary of the diesel exhaust fluid DEF low level warning lights indicator lights and engine power reductions Continuing to drive for too long after these lights come on will eventually result in a severe vehicle speed limitation These warning and indicator lights will go out automatically and engine power will be restored to normal after the SCR system detects that the DEF tank is refilled with DEF Stage 1 When the remaining level of DEF becomes excessively low the DEF gauge will change color from green to amber In addition warning and indicator lights will come on as shown in th
15. tem requires good quality DEF for proper operation The system is equipped with various sensors to detect the proper fluid is added to the DEF tank The driver s only responsibility is to add good quality DEF to the DEF tank as necessary The DEF level gauge on the instrument cluster shows the amount of DEF remaining In addition the Mutli Information Display MID will provide additional notice to encourage the driver to add DEF In order to keep the SCR system operational and emissions compliant a warning system will activate when the DEF level becomes too low see DEF Low Level Warning System After starting the engine the SCR control module will pressurize the system and based on various sensor inputs begin to reduce NOx emissions No driver action is necessary for the SCR system to function After the engine is turned OFF the SCR control module will reduce system pressure and recover all DEF in the system piping back to the DEF tank This action is taken as cold weather protection Note Drivers may notice a buzzing noise from the driver side of the vehicle near the DEF tank a few moments after turning OFF the engine This is a function of the SCR system and should be considered normal During cold weather seasons DEF may freeze in the DEF tank Once the engine is started engine coolant circulates through the DEF tank to thaw it when frozen and prevent it from freezing while the engine is running The vehicle can be driven normally when DE
16. will prevent clutch plates from rusting to the flywheel and clutch pressure plate B Remove the windshield wiper arms and blades and store in the vehicle In addition the following procedures are to be carried out at 30 day intervals and instituted after the first 30 days of vehicle storage 1 Check the battery water levels and specific gravity If voltage is under 12 20 volts recharge the battery 2 Connect the battery ground cable and start the engine Operate the engine at fast idle until normal operating temperature is reached be sure there is sufficient fuel in tank each vehicle is supplied with approximately 1 5 gallons of fuel Do not let the tank run dry While engine is warming up perform Steps 3 7 below 3 Shift the transmission lever to all positions while the engine is running 4 Move the vehicle for a distance of at least 30 feet to lubricate the wheel bearings NOTE The vehicle should be re parked so that a different area of the tires is in contact with the ground to reduce the possibility of tire damage 5 Turn the steering wheel lock to lock while the vehicle is moving slowly 6 Apply and release the service and parking brakes several times Do not apply the parking brake when the vehicle is moving 7 Stop the engine 8 Disconnect the battery ground cable 9 Drain the brake air reservoirs if appropriate and close the drain cocks VEHICLES STORED BEYOND ONE YEAR In the event vehicles are to be stored for ext
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