P2457 on Ford
Exhaust Gas Recirculation Cooling System Performance
P2457 on Ford vehicles indicates exhaust gas recirculation cooling system performance. Au7o has documented this code across 1 Ford model — most commonly on F-250 Super Duty. Generic code set when the PCM determines the EGR cooler/cooling system is not lowering recirculated exhaust gas temperature as much as expected — the cooler is underperforming, often due to clogging, coolant flow loss, or a stuck bypass. Typical repair costs on Ford range from $800 to $3,500, depending on the specific model and root cause.
Common Causes of P2457
- •Carbon-clogged/restricted EGR cooler
- •Loss of coolant flow through the cooler
- •Stuck EGR cooler bypass valve
- •Faulty temperature sensors used for the monitor
P2457 on Ford by Model
Ford F-250 Super Duty(1 issue)
- 6.7L Power Stroke EGR Cooler Clogging and Failure2011-2019
The EGR (Exhaust Gas Recirculation) cooler on 2011-2019 6.7L Power Stroke diesel engines is prone to clogging with soot and eventually failing, particularly on trucks used for highway driving, light loads, or trucks that idle extensively. The EGR cooler recirculates cooled exhaust gas back into the intake to reduce NOx emissions. Over time, soot accumulates in the cooler's internal passages until coolant flow is restricted, causing the cooler to overheat and fail. When it fails, exhaust gases enter the coolant system, causing overheating and "puking" coolant from the degas bottle. The 2011-2014 models are particularly susceptible due to narrow internal coolant passages. Ford issued TSBs for 2011-2014 trucks covering EGR cooler cleaning/replacement under extended warranty up to 120,000 miles. The EGR cooler for 2011-2016 is OEM part BC3Z-9V425-A; 2017+ is HC3Z-9V425.
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View P2457 across all makes →Frequently Asked Questions
What does P2457 mean on Ford?▼
P2457 stands for "Exhaust Gas Recirculation Cooling System Performance." Generic code set when the PCM determines the EGR cooler/cooling system is not lowering recirculated exhaust gas temperature as much as expected — the cooler is underperforming, often due to clogging, coolant flow loss, or a stuck bypass. On Ford specifically, this code is documented across 1 model.
What causes P2457 on Ford vehicles?▼
Common causes on Ford: Carbon-clogged/restricted EGR cooler, Loss of coolant flow through the cooler, Stuck EGR cooler bypass valve, Faulty temperature sensors used for the monitor. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2457 on a Ford?▼
Repair costs on Ford range from $800 to $3,500, depending on the specific model and root cause.
Which Ford models have P2457 documented?▼
Au7o has documented P2457 on 1 Ford model: F-250 Super Duty.