NOTE: Please see the step by step troubleshooting procedures for this specific code.
PROBABLE CAUSES:
1. Oil leak at the crankcase oil separator vent.
2. Crankcase breather speed sensor connector/harness.
3. Crankcase breather speed sensor.
Detroit DD13 EPA07 (2007-09) Fault Code: SPN 5444 FMI 1 (MCM) Engine Crankcase Breather Oil Separator Speed Too Low
Posted by PerDiezel Solutions on
