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Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 (3.6L - DTCS P0138 To P0456) >> DTC Troubleshooting >> P0401- EGR System Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
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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