Dd15 oil separator speed sensor. Oil leak at the crankcase oil seperator vent. 2. 1x Oil Separator. Intake Feb 25, 2026 · 4720107662, EA4720108262, A4720107662. Coolant Outlet Temperature Sensor EGR Actuator Figure 2. Is the resistance more than five ohms? Yes; repair the circuit between pin 2 of the engine crankcase breather oil separator speed sensor electrical connector harness side and pin 49 of the MCM 120-pin electrical connector. Oil blow-by from the crankcase breather usually indicates excessive crankcase pressure or breather clogging. Will F it F ollowing M odels . Water Pump Solenoid 5. Inspect the oil separator for clogging or mechanical binding that restricts rotation. Inspect the breather valve and PCV system for blockages or damage. Regular maintenance of the breather system Figure 1. 8K subscribers Subscribe Detroit DD15 GHG14 (2014-16) Fault Code: SPN 5444 FMI 1 (MCM) Engine Crankcase Breather Oil Separator Speed Too Low NOTE: Please see the step by step troubleshooting procedures for this specific code. Crankcase breather How to replace your leaking crankcase breather. Code 5444 indicates low crankcase breather speed, often caused by clogged breather filters or faulty speed sensors. I was already advised to try changing the air filter but that wasn't it. Crankcase breather speed sensor connector/harness. Jul 12, 2016 · Hi I have a 2011 cascading with Detroit dd15 and I am showing a fault code spn 5444 and was wondering if anyone could help with knowing what that is. Check wiring harness continuity and voltage at sensor pins. Never installed, never test-fitted, and removed only from OEM bulk packaging to create this complete install kit. Replace the breather, sensor, and pigtail if faulty. Detroit Diesel Pigtail Replacement Kits DD13 / DD15 / DD16 MCM Sensors Crankcase Breather Speed Sensor Measure the resistance between pins 2 and 3 of the engine crankcase breather oil separator speed sensor electrical connector harness side. Engine Sensors Detroit DD15 EPA10 (2010-13) Fault Code: SPN 5444 FMI 1 (MCM) Engine Crankcase Breather Oil Separator Speed Too Low NOTE: Please see the step by step troubleshooting procedures for this specific code. Fit For Detroit DD13 DD15. Clean or replace the breather filter as needed. 3. GHG14 DD16 and DD15TC Right Side Sensor Locations Engine Oil Pressure Sensor Engine Oil Temperature Sensor Coolant Inlet Temperature Sensor 4. The crankcase breather oil separator speed low code indicates the sensor detects insufficient rotation speed. Looking for the OEM Detroit Diesel Sensor, Crankcase Breather Speed A0061535528? Find it and many more Detroit Diesel parts at the lowest prices at Big Rig World! Detroit Diesel Detroit Diesel Jan 12, 2026 · Brand-new, unused genuine Detroit Diesel, Alfdex OEM crankcase breather oil separator kit for DD15 and DD16 engines. D13 engines may face crankcase breather clogging and low breather speed sensor faults causing engine codes. Detroit DD15 EPA07 (2007-09) Fault Code: SPN 5444 FMI 1 (MCM) Engine Crankcase Breather Oil Separator Speed Too Low NOTE: Please see the step by step troubleshooting procedures for this specific code. Oil leak at the crankcase oil separator vent. Crankcase breather Jun 23, 2019 · Freightliner cascadia DD13 DD15 DD16 SPN 5444 FMI 1 crankcase oil separator speed too low Francisco Amaya 108K subscribers Subscribe Cascadia DD15 often faces crankcase breather clogging and excessive oil blow-by during operation. Water Pump Speed Sensor 6. Replacing Oil separator/Crankcase breather ventilator on 2011 Freightliner Coronado engine DD15 Make Money Trucking 36. The crankcase ventilation separator uses high-quality materials that reduce the amount of oil and contaminants entering the intake system to help prevent buildup and wear. PROBABLE CAUSES: 1. Inspect the crankcase breather assembly for blockages or oil sludge buildup. Detroit DD13 DD15. Ensure connectors are clean and secure. Includes new A4720108262 oil separator assembly, A0071535928 phase sensor, A4720180780 elastomer metal seal, A0079979271 sleeve, A4720180006 protecting ring, and new 5 days ago · 4720107662, 4720180780, A4720107662, EA4720108262. ujw fqd llvoxmai bnf gcxyclm zoqd chwedc dobpl utw nkmqu