1451-040
UnclassifiedStarting
What This Code Means
Engine fails to start; Grinding sound when starting the engine; Damaged, broken, or chipped teeth on starting motor pinion and flywheel ring gear; Abnormal wear patterns on gear teeth
Possible Causes
- •Irregular engagement between starting motor pinion and flywheel ring gear
- •Starting motor failure
- •Starting motor pinion does not engage flywheel ring gear
Suggested Actions
- 1Inspect starting motor (if equipped)
- 2Inspect starting motor for proper operation
- 3Inspect the teeth of the starting motor pinion and flywheel ring gear for wear patterns, chips, or breakage
- 4Listen for grinding when the engine is started
- 5Perform scheduled inspection of the starting motor
- 6Replace the starting motor pinion and flywheel ring gear if damaged teeth are found
Related Caterpillar Inc. Fault Codes
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