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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 53 (2.0L - DTCS P253F To U0109) >> DTC Troubleshooting >> P2C90 Crankcase Ventilation System - Hose "A" Disconnected >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
MUA TUBE DISCONNECTED OR LEAKING
CRANKCASE PRESSURE SENSOR HOSE LEAKING OR BROKEN
CRANKCASE PRESSURE SENSOR NOT FULLY SEATED
MAKE-UP AIR (MUA) TUBE BROKEN
CRANKCASE PRESSURE SENSOR

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