0431703 REVERSE GEAR & BRG. JOHNSON
BJ150ELECD, BJ150ELEDB, BJ150ELEUC, BJ175EXECD, BJ175EXEDB, BJ175EXEUC, BJ175PLEES, BJ175PLSIF, BJ175PLSSC, BJ200CXEDR, BJ200CXEEB, BJ200CXSSE, BJ200PLSIF, BJ225CXEEC, BJ225CXSSR, BJ225PLSIF, J150CXCEM, J150CXEES, J150CXEIE, J150CXESB, J150CXSSC, J15
REVERSE
Price: query
Rating:
Number on catalog scheme: 32
Compatible models:
BJ150ELECD
BJ150ELEDB
BJ150ELEUC
BJ175EXECD
BJ175EXEDB
BJ175EXEUC
BJ175PLEES
BJ175PLSIF
BJ175PLSSC
BJ200CXEDR
BJ200CXEEB
BJ200CXSSE
BJ200PLSIF
BJ225CXEEC
BJ225CXSSR
BJ225PLSIF
J150CXCEM
J150CXEES
J150CXEIE
J150CXESB
J150CXSSC
J150ELAIS
J150ELANC
J150ELARA
J150ELATG
J150ELEOM
J150FCXECR
J150ICXEUC
J150JPLSIF
J175EXARC
J175EXATG
J175EXEIS
J175EXENC
J175EXEOM
J175FCXECS
J175STLCEB
J175STLEID
J175STLESE
J185ESERK
J185ESXENR
J185ESXESS
J185ESXETA
J185ESXW
J200CXARC
J200CXATF
J200CXCCR
J200CXCEA
J200CXECM
J200CXEIB
J200CXENE
J200CXEOC
J200CXESM
J200CXEUA
J225CXARC
J225CXATF
J225CXCCE
J225CXCED
J225CXECS
J225CXEDE
J225CXEIC
J225CXENR
J225CXEOB
J225CXESS
J225CXEUD
J225HPLEEN
J225HPLSIF
J225HPLSSC
J250CXECD
J250CXEEN
J250CXSSS
J250VCZSIF
JOHNSON
BRP JOHNSON entire parts catalog list:
- GEARCASE -- COUNTER-ROTATION » 0431703
BJ150ELEUC, BJ150ELEUE, BJ150EXEUC, BJ150EXEUE, BJ150GLEUC, BJ150GLEUE, BJ150NXEUC, BJ150NXEUE, J150ELEUC, J150ELEUE, J150EXEUC, J150EXEUE, J150GLEUC, J150GLEUE, J150JLEUC, J150JLEUE, J150NXEUC, J150NXEUE, J150SLEUC, J150SLEUE 1997
BJ175EXECD, BJ175GLECD, BJ175NXECD, J175EXECD, J175GLECD, J175NXECD, J175SLECD 1998
BJ175EXEDB, BJ175GLEDB, BJ175NXEDB, J175EXEDB, J175GLEDB, J175NXEDB, J175SLEDB 1996
BJ175EXEUC, BJ175EXEUE, BJ175GLEUC, BJ175GLEUE, BJ175NXEUC, BJ175NXEUE, J175EXEUC, J175EXEUE, J175GLEUC, J175GLEUE, J175NXEUC, J175NXEUE, J175SLEUC, J175SLEUE 1997
BJ175PLEES, BJ175PXEES, J175CXEES, J175PLEES, J175PXEES, J175SPLEES 1999
BJ175PLSIF, BJ175VXSIF, J175PLSIF, J175VCXSIF, J175VLSIF, J175VXSIF, RJ175CXSIF, RJ175PLSIF, RJ175VXSIF 2001
BJ175PLSSC, BJ175PXSSC, BJ175VXSSS, J175CXSSS, J175PLSSC, J175PXSSC, J175SPLSSC, J175VCXSSS, J175VLSSS, J175VXSSS, RJ175CXSSS, RJ175PLSSC, RJ175VXSSS 2000
BJ200CXEDR, BJ200TXEDR, J200CXEDR, J200STLEDM, J200TXEDR, LJ200SLEDR, SJ200SLEDM 1996
BJ200CXEEB, BJ200CXEEN, BJ200PLEEB, BJ200PLEEN, BJ200PXEEB, BJ200PXEEN, J200CXEEB, J200CXEEN, J200PLEEB, J200PLEEN, J200PXEEB, J200PXEEN 1999
BJ200CXSSE, BJ200PLSSC, BJ200PXSSC, BJ200VCSSS, BJ200VXSSS, J200CXSSE, J200PLSSC, J200PXSSC, J200VCXSSS, J200VXSSS, RJ200PLSSC, RJ200PXSSC, RJ200VXSSS 2000
BJ200PLSIF, BJ200VCSIF, BJ200VXSIF, J200PLSIF, J200VCXSIF, J200VLSIF, J200VXSIF, RJ200PLSIF, RJ200VXSIF 2001
BJ225CXEEC, BJ225CXEEN, BJ225PLEEC, BJ225PLEEN, BJ225PXEEC, BJ225PXEEN, J225CXEEC, J225CXEEN, J225HPLEEN, J225HPLEES, J225PLEEC, J225PLEEN, J225PXEEC, J225PXEEN 1999
BJ225CXSSR, BJ225PLSSR, BJ225PXSSR, BJ225VCSSS, BJ225VXSSS, J225CXSSR, J225HGLSSC, J225HPLSSC, J225PLSSR, J225PXSSR, J225VCXSSS, J225VXSSS, RJ225CXSSS, RJ225HGSSC, RJ225HLSSC, RJ225PLSSR, RJ225PXSSR, RJ225VXSSS 2000
BJ225PLSIF, BJ225VCSIF, BJ225VXSIF, J225HGLSIF, J225HPLSIF, J225PLSIF, J225VCXSIF, J225VLSIF, J225VXSIF, RJ225CXSIF, RJ225HLSIF, RJ225PLSIF, RJ225VXSIF 2001
J150CXCEM, J150TLAEM, J150TLCEM, J150TXCEM, TJ150TXCEM 1989
J150CXEES, J150JPLEES, J150PLEES, J150PXEES, J150SPLEES 1999
J150CXEIE, J150JLEIE, J150TLAIE, J150TLEIE, J150TXEIE, VJ150TLEIE, VJ150TXEIE 1991
J150CXESB, J150TLASB, J150TLESB, J150TXESB, VJ150TLESB, VJ150TXESB 1990
J150CXSSC, J150JPLSSC, J150MXSSD, J150PLSSC, J150PXSSC, J150SPLSSC, J150VCSSS, J150VLSSS, J150VXSSS, RJ150CXSSC, RJ150PLSSC, RJ150PXSSC, RJ150VCSSS, RJ150VLSSS, RJ150VXSSS 2000
J150ELAIS, J150ELEIS, J150EXEIS, J150GLEIS, J150NXEIS, TJ150GLEIS, VJ150ELEIS, VJ150EXEIS, VJ150GLEIS 1991
J150ELANC, J150ELENC, J150EXENC, J150GLENC, J150JLENC, J150NXENC, TJ150GLENC, VJ150ELANC, VJ150ELENC, VJ150EXENC 1992
J150ELARA, J150ELARV, J150ELERA, J150ELERV, J150EXARC, J150EXARV, J150EXERA, J150EXERV, J150GLERA, J150GLERV, J150JLERA, J150JLERV, J150NXARC, J150NXARV, J150NXERA, J150NXERV 1994
J150ELATG, J150ELATR, J150ELETG, J150ELETR, J150EXATG, J150EXATS, J150EXETG, J150EXETR, J150GLETG, J150GLETR, J150JLETG, J150JLETR, J150NXATG, J150NXATS, J150NXETG, J150NXETR, TJ150GLETG, TJ150GLETR, VJ150ELATG, VJ150ELATR, VJ150ELETG, VJ150ELETR, VJ150EXETG, VJ150EXETR, VJ150GLETG, VJ150GLETR 1993
J150ELEOM, J150EXEOM, J150GLEOM, J150JLEOM, J150NXEOM, J150SLEOM, VJ150HLEOS 1995
J150FCXECR, J150FSLECR, J150FSXECR, J150ILECR 1998
J150ICXEUC, J150ILEUC, J150IXEUC, J150PLEUC 1997
J150JPLSIF, J150PLSIF, J150VCXSIF, J150VLSIF, J150VXSIF, RJ150PLSIF, RJ150VCSIF, RJ150VLSIF, RJ150VXSIF 2001
J175EXARC, J175EXARV, J175EXERA, J175EXERV, J175GLERA, J175NXARC, J175NXARV, J175NXERA, J175NXERV, J175SLERA 1994
J175EXATG, J175EXATS, J175EXETG, J175EXETR, J175GLETG, J175GLETR, J175NXATG, J175NXATS, J175NXETG, J175NXETR, VJ175EXETG, VJ175EXETR, VJ175GLETG, VJ175GLETR 1993
J175EXEIS, J175GLEIS, VJ175EXEIS, VJ175GLEIS 1991
J175EXENC, J175GLENC, J175NXENC, VJ175EXENC, VJ175GLENC 1992
J175EXEOM, J175GLEOM, J175NXEOM, J175SLEOM 1995
J175FCXECS, J175FSLECS, J175FSXECS, J175FTLECS 1998
J175STLCEB, J175TXCEB 1989
J175STLEID, J175TXEID, VJ175SLEID, VJ175TXEID 1991
J175STLESE, J175TXESE, VJ175SLESE, VJ175TXESE 1990
J185ESERK 1994
J185ESXENR 1992
J185ESXESS 1990
J185ESXETA, J185ESXETF 1993
J185ESXW 1989
J200CXARC, J200CXARK, J200CXERK, J200CXERS, J200CZARK, J200CZERK, J200CZERS, J200STLERK, J200STLERR, J200TXARC, J200TXARK, J200TXERK, J200TXERS, J200TZARK, J200TZERK, J200TZERS 1994
J200CXATF, J200CXATS, J200CXETD, J200CXETF, J200CZATF, J200CZATS, J200CZETD, J200CZETF, J200STLETC, J200STLETF, J200TXATF, J200TXATS, J200TXETD, J200TXETF, J200TZATF, J200TZATS, J200TZETD, J200TZETF, VJ200SLETC, VJ200SLETF, VJ200TXETD, VJ200TXETF, VJ200TZETD, VJ200TZETF 1993
J200CXCCR, J200STLACM, J200STLCCM, J200TXCCR 1988
J200CXCEA, J200STLCEB, J200TXCEA, TJ200TXCEA 1989
J200CXECM, J200STLECE, J200TLECM, J200TXECM, SJ200CXECM, SJ200SLECE, SJ200TXECM 1998
J200CXEIB, J200STLEID, J200TXEIB, VJ200SLEID, VJ200TXEIB 1991
J200CXENE, J200STLENS, J200TXENE, VJ200SLENS, VJ200TXENE 1992
J200CXEOC, J200CZEOC, J200STLEOA, J200TXEOC, J200TZEOC, LJ200SLEOC 1995
J200CXESM, J200STLESE, J200TXESM, VJ200SLESE, VJ200TXESM 1990
J200CXEUA, J200STLEUB, J200TXEUA, SJ200CXEUA, SJ200SLEUB, SJ200TXEUA 1997
J225CXARC, J225CXARK, J225CXERK, J225CXERM, J225CZARK, J225CZERK, J225CZERM, J225PLERK, J225PLERM, J225PXARC, J225PXARK, J225PXERK, J225PXERM, J225PZARK, J225PZERK, J225PZERM, J225STLERC, J225STLERK, J225TLERK, J225TLERM, J225TXARC, J225TXARK, J225TXERK, J225TXERM, J225TZARK, J225TZERK, J225TZERM 1994
J225CXATF, J225CXATS, J225CXETA, J225CXETF, J225CZATF, J225CZATS, J225CZETA, J225CZETF, J225PLETA, J225PLETF, J225PXATF, J225PXATS, J225PXETA, J225PXETF, J225PZATF, J225PZATS, J225PZETA, J225PZETF, J225STLETF, J225TLETA, J225TLETF, J225TXATF, J225TXATS, J225TXETA, J225TXETF, J225TZATF, J225TZATS, J225TZETA, J225TZETF, VJ225PLETA, VJ225PLETF, VJ225PXETA, VJ225PXETF, VJ225PZETA, VJ225PZETF, VJ225STLETF, VJ225TLETA, VJ225TLETF, VJ225TXETA, VJ225TXETF, VJ225TZETA, VJ225TZETF 1993
J225CXCCE, J225PLCCE, J225PXCCE, J225TLCCE, J225TXCCE 1988
J225CXCED, J225PLAED, J225PLCED, J225PXCED, J225TLAED, J225TLCED, J225TXCED 1989
J225CXECS, J225CZECS, J225STLECS, J225TXECS, J225TZECS, SJ225CXECS, SJ225GLECC, SJ225NXECC, SJ225NZECC, SJ225QXECC, SJ225QZECC, SJ225SLECS, SJ225TXECS 1998
J225CXEDE, J225CZEDE, J225PXEDE, J225STLEDE, J225TXEDE, J225TZEDE, SJ225CXEDE, SJ225PXEDE, SJ225SLEDE, SJ225TXEDE 1996
J225CXEIC, J225PLEIC, J225PXEIC, J225TLEIC, J225TXEIC, VJ225PLEIC, VJ225PXEIC, VJ225TLEIC, VJ225TXEIC 1991
J225CXENR, J225PLENR, J225PXENR, J225TLENR, J225TXENR, VJ225PLENR, VJ225PXENR, VJ225TLENR, VJ225TXENR 1992
J225CXEOB, J225CZEOB, J225PXEOB, J225PZEOB, J225STLEOB, J225TXEOB, J225TZEOB 1995
J225CXESS, J225PLASS, J225PLESS, J225PXESS, J225TLASS, J225TLESS, J225TXESS, VJ225PLESS, VJ225PXESS, VJ225TLASS, VJ225TLESS, VJ225TXESS 1990
J225CXEUD, J225CZEUD, J225STLEUD, J225TXEUD, J225TZEUD, SJ225CXEUD, SJ225SLEUD, SJ225TXEUD 1997
J225HPLEEN, J225HPLEES 1999
J225HPLSIF 2001
J225HPLSSC 2000
J250CXECD, J250CZECD, J250PXECD, J250PZECD 1998
J250CXEEN, J250CXEES, J250CZEEN, J250CZEES, J250PXEEN, J250PXEES, J250PZEEN, J250PZEES 1999
J250CXSSS, J250CZSSC, J250PXSSC, J250PZSSC, J250VCXSSS, J250VCZSSS, J250VXSSS, J250VZSSS, RJ250CXSSS, RJ250VXSSS, RJ250VZSSS 2000
J250VCZSIF, J250VXSIF, J250VZSSIF, RJ250VXSIF, RJ250VZSSIF 2001
Information:
Recommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 1
Troubleshooting Test Steps Values Results
1. Diagnostic Codes
Note: Certain diagnostic codes and/or event codes may cause high fuel consumption.
A. Download the Warranty Report and the Product Status Report with Histograms before performing any troubleshooting or clearing any diagnostic codes.
Note: The downloaded information will be required by the Dealer Solutions Network (DSN) if troubleshooting assistance is needed.
B. Use the electronic service tool to check for active or logged codes.
Diagnostic codes
Result: A diagnostic code is present.
Repair: Troubleshoot the code and then verify that the fuel consumption is normal.
Result: A diagnostic code is not present.
Proceed to Test Step 2.
2. Misreading of Fuel Level
Note: Misreading of the fuel gauge can give a false indication of fuel consumption.
A. Monitor the fuel consumption over a period of 50 engine hours.
Fuel level
Result: Fuel consumption is normal for the operating conditions.
Return the unit to service.
Result: Fuel consumption is high for the operating conditions.
Proceed to Test Step 3.
3. Fuel Leakage
A. Check the engine for signs of fuel leakage.
Fuel leaks
Result: Evidence of a fuel leak is found.
Repair: Repair or replace the component that is leaking fuel.
Result: No evidence of a fuel leak is found.
Proceed to Test Step 4.
4. Fuel Quality
Note: The grade of the fuel affects the rate of fuel consumption. Refer to the engines Operation and Maintenance Manual for additional information.
Cold weather adversely affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold-weather operation.
A. Check the fuel quality. Refer to Systems Operation, Testing, and Adjusting, "Fuel Quality - Test".
B. Refer to Operation and Maintenance Manual for information on the proper characteristics of the fuel for the engine.
Fuel quality
Result: The fuel quality does not meet specifications.
Repair: Drain the fuel system and replace the fuel filters. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter (Water Separator) Element - Replace" and Operation and Maintenance Manual, "Fuel System Filter - Replace".
Fill the fuel system with fuel that meets the standard in the Operation and Maintenance Manual, "Fluid Recommendations".
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime".
Result: The fuel quality meets specifications.
Proceed to Test Step 5.
5. Quality of Oil
Note: The nominal viscosity of the lubricating oil that is used in the engine will affect the rate of fuel consumption. The viscosity of lubricating oil is defined by the SAE grade of the lubricating oil. The grade of the lubricating oil must be correct for the ambient conditions. Lubricating oil for high ambient temperatures will affect fuel consumption in cold ambient temperatures.
A. Check that the engine oil meets the required specification. Refer to "Engine Oil" in the Operation and Maintenance Manual, "Refill Capacities".
Engine oil quality
Result: The engine oil does not meet the required specification.
Repair: Drain and fill the oil system with oil of an acceptable quality. Refer to the applicable sections in the Operation and Maintenance Manual.
Result: The engine oil meets the required specification.
Proceed to Test Step 6.
6. Coolant Temperature
Note: The operating temperature of the engine will affect the rate of fuel consumption. Operation of the engine below the correct temperature will increase fuel consumption. Failure of the water temperature regulator can prevent the engine from operating at the correct temperature.
A. Check that the water temperature regulator is operating correctly. Refer to Systems Operation, Testing, and Adjusting, "Water Temperature Regulator - Test".
Coolant temperature
Result: The water temperature regulator is not operating correctly.
Repair: Replace the water temperature regulator. Verify that the repair corrected the fault.
Result: The water temperature regulator is operating correctly.
Proceed to Test Step 7.
7. Prolonged Operation at Idle Speed
Note: Prolonged operation of the engine at idle speed increases fuel consumption.
A. Check for extended periods of engine operation at idle speed.
Extended idle operation
Result: The engine is operating at idle speed for extended periods.
When possible, stop the engine to conserve fuel.
Result: The engine is not operating at idle speed for extended periods.
Proceed to Test Step 8.
8. Air Intake and Exhaust System
A. Check the air filter restriction indicator, if equipped.
B. Check the air intake and exhaust systems for the following defects:
Blockages
Restrictions
Damage to lines or hoses
Air and Exhaust System restrictions
Result: The air filter is restricted.
Repair: Replace the air filter.
Result: There are system restrictions.
Repair: Refer to Systems Operation/Testing and Adjusting, "Air Inlet and Exhaust System" for additional information on the air inlet and exhaust systems.
Result: The air intake and exhaust system is OK.
Proceed to Test Step 9.
9. Cooling Fan
Note: Excessive operation of the cooling fan or damage to the cooling fan will increase fuel consumption.
A. Check the operation and condition of the cooling fan.
Cooling fan
Result: The cooling fan is operating excessively.
Repair: Repair or replace the faulty cooling fan components.
Result: The cooling fan is damaged excessively.
Repair: Repair or replace the faulty cooling fan components.
Result: The cooling fan is not operating excessively and is not damaged.
Proceed to Test Step 10.
10. Reduced Pressure of Intake Air
Note: If the air pressure is lower than normal, the same power can only be achieved by the following:
Higher engine speed
Injection of more fuel
Either of these conditions will increase the fuel consumption.
A. Check all pipes from the outlet of the turbocharger compressors to the inlet manifold for leaks.
B. Check for the correct operation of the wastegate in the high-pressure turbocharger.
Intake air
Result: There is a leak in the intake air system.
Repair: Repair the leak or replace the component that is causing the leak.
Result: The turbocharger wastegate is not operating correctly.
Repair: Replace the high-pressure turbocharger.
Result: The air intake system and the wastegate are OK.
Proceed to Test Step 11.
11. Excessive Valve Lash
A. Check for excessive valve lash.
Valve lash
Result: The valve lash is incorrect.
Repair: Check the valve lash. Refer to Systems Operation, Testing, and Adjusting, "Engine Valve Lash - Inspect" for the correct procedure.
Result: The valve lash is correct.
Proceed to Test Step 12.
12. Failure of the Primary Speed/Timing Sensor
A. Crank the engine and observe the engine speed on the electronic service tool status screen.
Upon initial cranking, the status for engine speed may indicate that the engine speed signal is abnormal. This message
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 1
Troubleshooting Test Steps Values Results
1. Diagnostic Codes
Note: Certain diagnostic codes and/or event codes may cause high fuel consumption.
A. Download the Warranty Report and the Product Status Report with Histograms before performing any troubleshooting or clearing any diagnostic codes.
Note: The downloaded information will be required by the Dealer Solutions Network (DSN) if troubleshooting assistance is needed.
B. Use the electronic service tool to check for active or logged codes.
Diagnostic codes
Result: A diagnostic code is present.
Repair: Troubleshoot the code and then verify that the fuel consumption is normal.
Result: A diagnostic code is not present.
Proceed to Test Step 2.
2. Misreading of Fuel Level
Note: Misreading of the fuel gauge can give a false indication of fuel consumption.
A. Monitor the fuel consumption over a period of 50 engine hours.
Fuel level
Result: Fuel consumption is normal for the operating conditions.
Return the unit to service.
Result: Fuel consumption is high for the operating conditions.
Proceed to Test Step 3.
3. Fuel Leakage
A. Check the engine for signs of fuel leakage.
Fuel leaks
Result: Evidence of a fuel leak is found.
Repair: Repair or replace the component that is leaking fuel.
Result: No evidence of a fuel leak is found.
Proceed to Test Step 4.
4. Fuel Quality
Note: The grade of the fuel affects the rate of fuel consumption. Refer to the engines Operation and Maintenance Manual for additional information.
Cold weather adversely affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold-weather operation.
A. Check the fuel quality. Refer to Systems Operation, Testing, and Adjusting, "Fuel Quality - Test".
B. Refer to Operation and Maintenance Manual for information on the proper characteristics of the fuel for the engine.
Fuel quality
Result: The fuel quality does not meet specifications.
Repair: Drain the fuel system and replace the fuel filters. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter (Water Separator) Element - Replace" and Operation and Maintenance Manual, "Fuel System Filter - Replace".
Fill the fuel system with fuel that meets the standard in the Operation and Maintenance Manual, "Fluid Recommendations".
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime".
Result: The fuel quality meets specifications.
Proceed to Test Step 5.
5. Quality of Oil
Note: The nominal viscosity of the lubricating oil that is used in the engine will affect the rate of fuel consumption. The viscosity of lubricating oil is defined by the SAE grade of the lubricating oil. The grade of the lubricating oil must be correct for the ambient conditions. Lubricating oil for high ambient temperatures will affect fuel consumption in cold ambient temperatures.
A. Check that the engine oil meets the required specification. Refer to "Engine Oil" in the Operation and Maintenance Manual, "Refill Capacities".
Engine oil quality
Result: The engine oil does not meet the required specification.
Repair: Drain and fill the oil system with oil of an acceptable quality. Refer to the applicable sections in the Operation and Maintenance Manual.
Result: The engine oil meets the required specification.
Proceed to Test Step 6.
6. Coolant Temperature
Note: The operating temperature of the engine will affect the rate of fuel consumption. Operation of the engine below the correct temperature will increase fuel consumption. Failure of the water temperature regulator can prevent the engine from operating at the correct temperature.
A. Check that the water temperature regulator is operating correctly. Refer to Systems Operation, Testing, and Adjusting, "Water Temperature Regulator - Test".
Coolant temperature
Result: The water temperature regulator is not operating correctly.
Repair: Replace the water temperature regulator. Verify that the repair corrected the fault.
Result: The water temperature regulator is operating correctly.
Proceed to Test Step 7.
7. Prolonged Operation at Idle Speed
Note: Prolonged operation of the engine at idle speed increases fuel consumption.
A. Check for extended periods of engine operation at idle speed.
Extended idle operation
Result: The engine is operating at idle speed for extended periods.
When possible, stop the engine to conserve fuel.
Result: The engine is not operating at idle speed for extended periods.
Proceed to Test Step 8.
8. Air Intake and Exhaust System
A. Check the air filter restriction indicator, if equipped.
B. Check the air intake and exhaust systems for the following defects:
Blockages
Restrictions
Damage to lines or hoses
Air and Exhaust System restrictions
Result: The air filter is restricted.
Repair: Replace the air filter.
Result: There are system restrictions.
Repair: Refer to Systems Operation/Testing and Adjusting, "Air Inlet and Exhaust System" for additional information on the air inlet and exhaust systems.
Result: The air intake and exhaust system is OK.
Proceed to Test Step 9.
9. Cooling Fan
Note: Excessive operation of the cooling fan or damage to the cooling fan will increase fuel consumption.
A. Check the operation and condition of the cooling fan.
Cooling fan
Result: The cooling fan is operating excessively.
Repair: Repair or replace the faulty cooling fan components.
Result: The cooling fan is damaged excessively.
Repair: Repair or replace the faulty cooling fan components.
Result: The cooling fan is not operating excessively and is not damaged.
Proceed to Test Step 10.
10. Reduced Pressure of Intake Air
Note: If the air pressure is lower than normal, the same power can only be achieved by the following:
Higher engine speed
Injection of more fuel
Either of these conditions will increase the fuel consumption.
A. Check all pipes from the outlet of the turbocharger compressors to the inlet manifold for leaks.
B. Check for the correct operation of the wastegate in the high-pressure turbocharger.
Intake air
Result: There is a leak in the intake air system.
Repair: Repair the leak or replace the component that is causing the leak.
Result: The turbocharger wastegate is not operating correctly.
Repair: Replace the high-pressure turbocharger.
Result: The air intake system and the wastegate are OK.
Proceed to Test Step 11.
11. Excessive Valve Lash
A. Check for excessive valve lash.
Valve lash
Result: The valve lash is incorrect.
Repair: Check the valve lash. Refer to Systems Operation, Testing, and Adjusting, "Engine Valve Lash - Inspect" for the correct procedure.
Result: The valve lash is correct.
Proceed to Test Step 12.
12. Failure of the Primary Speed/Timing Sensor
A. Crank the engine and observe the engine speed on the electronic service tool status screen.
Upon initial cranking, the status for engine speed may indicate that the engine speed signal is abnormal. This message