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Home >> Jeep >> 2021 >> Cherokee High Altitude, Automatic T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P023A To P0449 >> DTC Troubleshooting >> P0401-EGR System Performance >> Possible Causes

Possible Causes

Possible Causes
EGR VALVE PASSAGE BLOCKED/RESTRICTED
EGR SYSTEM LEAK
EGR VALVE ASSEMBLY

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

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