Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2021 >> Grand Cherokee L Altitude, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0305 To P0452 >> DTC Troubleshooting >> P0401-EGR System Performance >> Possible Causes

Possible Causes

Possible Causes
EGR VALVE PASSAGE BLOCKED/RESTRICTED
EGR SYSTEM LEAK
EXHAUST GAS RECIRCULATION (EGR) VALVE ASSEMBLY

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

scientia non olet · About Mike's Workshop Manuals