Electronic Control Module (ECM) Part Number Changes{1901}
Usage:
3116 (8WL3412-Up),
3126 (1WM14870-Up),
3176B (9CK32708-Up),
3406E (6TS8048-Up),
C-10 (2PN4895-Up),
C-12 (1YN8053-Up) Truck Engines
Description of Change: A change has been made to the ECM microprocessor in the above truck engines. The change allows the ECM manufacturer to test the product more efficiently.
NOTE: The change does not affect the performance or the features of the ECM.
Adaptable To: The change is effective with the above truck engines and adaptable back to first production. See the following chart for part number changes.
Caterpillar Information System:
1997/06/23 A New And A Remanufactured TU-FLO 1400L Air Compressor Group Is Available{1803}
1997/06/23 Improved Piston Rings Available{1215}
1997/06/23 New Chrome-Plated Stem On Exhaust Valve Increases Valve And Valve Guide Wear Life{1105,1100}
1997/06/23 Mechanical Unit Fuel Injector Groups Spill Shield Changed{1290}
1997/05/27 New Alternator Now Used{1405,7168}
1997/05/27 New Idler Gear Stub Shaft Assembly And Idler Gear Assembly Used In Front Gear Group{1206}
1997/05/27 Improved Brackets Used In Refrigerant Compressor Mounting Groups{1802}
1997/05/27 Special Installation Procedure For Alternator Support Brackets{1405}
1997/05/27 Procedure To Investigate Misfires On Engines Equipped With Electronic Unit Injectors (EUI){1290}
1997/04/01 New "Fuel System Reuse And Salvage Guides" Reference Manual Available{1250}
1997/04/01 Description Of March 1997 (MAR97) Software Modifications{1920}
1997/04/01 Improvements Made To Remanufactured 0R-3008 Fuel Transfer Pump{1256}
1997/07/01 Electronic Display Groups Available For English/Spanish And English/French{7490}
1997/07/01 Manufacturing And Design Improvements Incorporated Into Fuel Injection Nozzle Assemblies{1252,1307}
1997/07/01 Governor Control Cover Assembly Includes New Seal And Improved Cover{1264}
1997/07/01 "T" Adapter Cable Assembly Available{1901}
1997/07/01 Cylinder Head Gasket Changed For Tu-Flo 550/750 Air Compressor Groups{1803}
1997/08/01 Lubricity Limit Added To Preferred Distillate Fuel Recommendation{1280}
1997/08/01 Changes For The C-10 And C-12 1998 Model Year Truck Engines{1000}
1997/08/01 Troubleshooting Tip For Inlet Air Heater (Flame Start){1090}
1997/08/01 Improved O-Ring Seals Replace Former O-Ring Seals In Oil Cooler And Oil Filter Base{1378,1306}
1997/09/19 Special Instruction Available For 141-7060 Injector Wiring Harness Connector Repair Kit To Repair Connectors On HEUI Wiring Harness Assembly{1408,1290}
1997/09/19 3406C O-Ring Seal And Gaskets Changes Provide Improved Oil And Fuel Leak Resistence In Pump And Governor{7555}
1997/10/20 New Troubleshooting Guide Available{0374}