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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1314 (6.7L Diesel - DTCS P2066 To P245D - 2500 Hd & 3500 Hd) >> DTC Troubleshooting >> P2457-Exhaust Gas RECIRCULATION Cooling System Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
COOLANT TEMP DTCS
EGR VALVE DTCS
ENGINE OR FUEL MODIFICATIONS THAT EXCEED OEM SPECIFICATIONS
FUEL SYSTEM DTCS
EGR TEMPERATURE SENSOR
EGR COOLER FOULING

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  . 

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