System Malfunctions Related To The Injection Actuation Pressure Sensors In Excavators, Wheel Loaders, Engines, Track-Type Tractors and Track Loaders Caterpillar

System Malfunctions Related To The Injection Actuation Pressure Sensors In Excavators, Wheel Loaders, Engines, Track-Type Tractors and Track Loaders

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System Malfunctions Related To The Injection Actuation Pressure Sensors In Excavators, Wheel Loaders, Engines, Track-Type Tractors and Track Loaders

CONFIDENTIAL TIBU4680-01

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TECHNICAL INFORMATION BULLETIN	November 30, 2005
	This Technical Information Bulletin replaces the November 11, 2005 TIB "System Malfunctions Related To The Injection Actuation Pressure Sensors In Excavators, Wheel Loaders, Engines, Track-Type Tractors and Track Loaders". Disregard the November 11, 2005 TIB. Refer to the following information.
Excavators	322C (EMR215-523,MAR165-468) 325C (CRB650-1677,CSJ800-1486) (DTF276-285,JLC283-306) (JLD313-348) 330C (CAP950-2085,CGZ444-889) (JCD285-351,MKM308-316) 330CL(JNK238-343)
Wheel Loaders	938GII (PHN550-2023) 950GII (AYB693-1086) (AYL1039-2384) 962GII (AYE530-695,BAB437-758)
Engines	C9 (C9B1-266,CSN1-1070) (JLW1-279,JSC1-395) (MTB1-1550,X9X1-258)
Track-Type Tractors	D6N LGP (ALR1-715) (ALY1-1932) (CCG1-261) (CCS1-402) D6N XL (AKM1-1694,ALH1-794) (CBF1-309,CBJ1-448) (CBL1-400,CCK1-623) D6RII (AEM1-117,BPM1-104) (BRJ1-201,CAD1-257) (FDT1-362) D6RII LGP (ACJ1-113) (ADE1-1016) (AFD1-98) (BNC1-433) (BPP1-502) (BPZ1-532) D6RII XL (AAX1-139) (AGM1-111) (BMJ1-166) (BMY1-479) (BPS1-503) (BRZ1-537) D6RII XW (AEP1-711) (BRE1-501) (DAE1-192) D6RIII LGP (WCB1-111,WRG1-157) D6RIII XW (HDC1-132,MRT1-1)
Track Loader	963C (BBD1-2311)
	Component Code 1925

SUBJECT: System Malfunctions Related To The Injection Actuation Pressure Sensors In Excavators, Wheel Loaders, Engines, Track-Type Tractors and Track Loaders

PROBLEM:

The Injection Actuation Pressure (IAP) sensors are being replaced on machine applications with C7/3126 engines. Some C9 engine models are also affected. The system event code 164-11 or 164-02 leads the technician to replace the sensor. Many of these sensors are no fault found. The result of these failures is loss of production due to unscheduled downtime.

SOLUTION:

Follow current troubleshooting guidelines for highway trucks to troubleshoot the part causing the failure. This will aid the technician in finding the correct part causing the failure. Report any troubleshooting guidelines errors using the feedback function in the Service Information System (SIS Web).

COPYRIGHT 2005 CATERPILLAR
ALL RIGHTS RESERVED

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