Cummins

CODE 38

UnclassifiedSpeed

What This Code Means

Slow cranking speed; Engine stopped without receiving a command from the control; Low power factor loads

Possible Causes

  • •High engine oil viscosity for the ambient temperature
  • •Low fuel level
  • •Dirty air filter element
  • •Mechanical damage
  • •High number of connected appliances, especially air conditioners and battery chargers
  • •Appliances not operating properly

Suggested Actions

  1. 1Replace engine oil with oil of proper viscosity for the ambient temperature
  2. 2If fuel level is low, fill the fuel tank
  3. 3Prime the engine fuel system by positioning the control switch to STOP/PRIME for 30 seconds
  4. 4Replace the air filter if dirty
  5. 5Check for mechanical damage
  6. 6Reduce the number of connected appliances, especially air conditioners and battery chargers
  7. 7Have air conditioners and other appliances checked for proper operation

Related Cummins Fault Codes

CODE 41FUEL PRESSURE FAULT CODESCODE 36OVER CRANK FAULT513414721471143812100-04400-02800-027
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