Caterpillar

1451-040

UnclassifiedStarting

What This Code Means

Engine fails to start; Grinding noise when the engine is started; Broken or chipped teeth on the starting motor pinion or flywheel ring gear; Wear patterns on the teeth of the starting motor pinion or flywheel ring gear

Possible Causes

  • •Damaged teeth on the starting motor pinion and flywheel ring gear
  • •Dirty or loose electrical connections
  • •Irregular engagement of the starting motor pinion and flywheel ring gear
  • •Starting motor failure
  • •Starting motor pinion does not engage the flywheel ring gear

Suggested Actions

  1. 1Check and clean the electrical connections
  2. 2Check starting motor for proper operation
  3. 3Inspect the starting motor for proper operation
  4. 4Inspect the teeth of the starting motor pinion and the flywheel ring gear for wear, breaks, or chips
  5. 5Listen for grinding when the engine is started
  6. 6Replace the starting motor pinion and the flywheel ring gear if damaged teeth are found

Related Caterpillar Fault Codes

1453-0407400741814531450145614111466-543-M&S1405-04019001401-561
Browse all Caterpillar fault codes

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