Electronic fault codes active or high counts of inactive fault codes
View and troubleshoot the fault codes with INSITEm. Refer to Refer to the Troubleshooting
and Repair Manual, CM2100 and CM2150 Electronic Control System, Bulletin 4021570.
Crankcase ventilation system is malfunctioning
Verify crankcase vent system operation. Refer to Procedures 003-001 and 003-002.
Lubricating oil level is above specification
Check the oil level. Verify the dipstick calibration and oil pan capacity. Fill the system to the specified level.
Engine angularity during operation exceeds specification
Refer to the Engine Specification Data Sheet for angularity specifications for the engine being
serviced.
Crankcase pressure is excessive
Check for excessive blowby. Refer to Procedure 014-010.
Air compressor is excessively worn or internally damaged
Replace or rebuild the air compressor. Refer to Procedure 014-010 to check the air compressor
engine blow-by contribution. If blow-by is out of specification. Refer to Procedure 012-014.
Turbocharger oil seal is leaking
Check the turbocharger compressor and turbine seals. Refer to Procedure 014-010 to check the
turbocharger blow-by contribution. Replace the turbocharger if necessary. Refer to Procedure
010-033.
Valve stem clearance is excessive or the valve stem seals are damaged
Check the valve stems and seals. Refer to Procedure 002-004.
Cylinder head valve guides are excessively worn
Check the valve guides for wear. Replace the cylinder head if necessary. Refer to Procedure
002-004.
Piston or piston rings are worn or damaged
Check for air intake system leaks. Check the pistons and piston rings for wear or damage. Refer
to Procedures 001-047 and 010-024. Analyze the lubricating oil and oil filters to locate an area of
probable damage and cause. Refer to Procedure 007-083.