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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1380 (1.3L - DTCS P025D To P0520) >> DTC Troubleshooting >> P04FC-Crankcase Ventilation System Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
CRANKCASE HOSE LEAKING OR DAMAGED
INTAKE MANIFOLD LEAK
PCV VALVE

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

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