Electronic fault codes active or high counts of inactive fault codes
View and troubleshoot the fault codes with INSITEw. Refer to the Troubleshooting and Repair
Manual, CM21 00 and CM2150 Electronic Control System, Bulletin 4021570.
Fuel grade is not correct for the application or the fuel quality is poor
Operate the engine from a tank of high-quality fuel. Refer to the Owners Manual and/or Operation and Maintenace Manual for the engine being serviced for fuel specifications.
Overhead adjustments are not correct
Measure and adjust the overhead settings. Refer to Procedure 003-004.
Injector is malfunctioning
Perform the single-cylinder cutout test. Replace the injectors as necessary. Refer to Procedures
006-026 and 014-008.
Piston is misassembled
Remove and inspect the piston. Refer to Procedure 002-004 the cylinder head and inspect the
orientation and tops of the pistons for debris.
Procedure 001-054 for piston orientation and if necessary, piston removal.
Connecting rod is bent or out of alignment
Remove and inspect the connecting rods. Refer to Procedure 001-014.
Connecting rod is misassembled
Remove and inspect the connecting rod. Refer to Procedure 001-014.
Piston pin or bushing is loose, worn, or not installed correctly
Remove the pistons and inspect the piston pin and bushing for damage, wear, and correct installation. Refer to Procedure 001-043 or 001-054.