Diagnostic Test
WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
CHECK THE MUA TUBE AND CRANKCASE PRESSURE SENSOR HOSE
- Visually inspect the MUA Tube and Crankcase Pressure Sensor hose for the following:
- Poor sensor fitting
- Disconnected at the connection points
- Holes or breaks in the hose
- Pinched hose or restriction in the hose
- Crankcase Pressure Sensor unseated
Were any issues found with the crankcase ventilation hose?
Yes
- Perform the appropriate repair.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to: 2.0L - POWERTRAIN VERIFICATION TEST .
No
- Replace the Crankcase Pressure Sensor in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to: 2.0L - POWERTRAIN VERIFICATION TEST .