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Home >> Jeep >> 2024 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (3.0L - DTCS P04DB-00 To P051D-00) >> DTC Troubleshooting >> P04DB-00-Crankcase Ventilation System Disconnection >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
5-VOLT SUPPLY CIRCUIT OPEN/HIGH RESISTANCE
INCORRECT OIL LEVEL - TOO HIGH
CRANKCASE VENTILATION HOSE DISCONNECTED OR LEAKING
CRANKCASE VENTILATION HOSE
CRANKCASE PRESSURE SENSOR

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .