Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2023 >> Gladiator Freedom, Part Time T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P1129 To P152F >> DTC Troubleshooting >> P1404-EGR Close Position Performance >> Possible Causes

Possible Causes

Possible Causes
CARBON DEPOSITS IN EGR VALVE
EGR VALVE ASSEMBLY STICKING/DRAGGING
HIGH RESISTANCE IN THE EGR VALVE POSITION SIGNAL CIRCUIT
HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT
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