P04DB

crankcase ventilation system disconnected

NHTSA 10109032 ↗ NHTSA 10109038 ↗ NHTSA 10115955 ↗

Crankcase Ventilation System Disconnected

NHTSA 10170388 ↗ NHTSA 10170404 ↗ NHTSA 10174245 ↗

Crankcase Ventilation System Disconnected

NHTSA 10187695 ↗ NHTSA 10188793 ↗ NHTSA 10198439 ↗

KIA

TECHNICAL SERVICE BULLETIN: CRANKCASE EJECTOR INSPECTION/REPLACEMENT (SA650) - This bulletin provides instructions to inspect and, if necessary, replace the PCV ejector on certain 2027MY Telluride Hybrid (LQ2AH) vehicles produced from December 4, 2025, through March 20, 2026. Affected vehicles may display an illuminated Malfunct…

FORD

Recommended Repair Prior to Sale Customer Satisfaction Program 26P04 Certain 2025 Model Year Bronco and Ranger Vehicles with 2.7L Engine Setting Diagnostic Trouble Code (DTC) P04DB Powertrain Control Module Software Update

FORD

Some 2025 Bronco/Ranger vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P04DB stored in the powertrain control module (PCM) with no other relevant DTCs present. This may be due to the software in the PCM.

FORD

Some 2025 Bronco/Ranger vehicles equipped with a 2.7L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P04DB stored in the powertrain control module (PCM) with no other relevant DTCs present. Refer to Workshop Manual (WSM), Section 303-08B Engine Emission Control > Di…