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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2376 (Engine Controls - Diagnostic Subroutines - 6.4L 99R Diesel -- F250-F550 Super Duty) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P2457 - Exhaust Gas RECIRCULATION (EGR) Cooler System Performance

P2457 - Exhaust Gas RECIRCULATION (EGR) Cooler System Performance

WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P2457 - EXHAUST GAS RECIRCULATION (EGR) COOLER SYSTEM PERFORMANCE

Description:  Indicates excessive EGR cooler outlet temperature. Exhaust gases not being cooled effectively by the EGR coolers.
Possible Causes: 
  • Engine is overheating
  • Cooling system restriction
  • Charge air cooler (CAC) restriction
  • EGR cooler restriction
  • Biased exhaust gas recirculation temperature 2 (EGRT2) sensor
Diagnostic Aids:  This DTC sets if the EGR cooler outlet temperature is above 165°C (329°F) for more than 20 seconds when there is no EGR flow, engine speed between 600-1300 RPM and engine torque is between 50 to 400 Nm (37 to 296 lb-ft).
Application    Key On Engine Off  Key On Engine Running  Continuous Memory 
All   refer to PINPOINT TEST AZ .