Trouble codes › By vehicle › Ford F-250 and F-350 Super Duty
Common check-engine codes on the Ford F-250 and F-350 Super Duty
2011-2025
Ford Super Duty pickups since 2011 come with the 6.7L Power Stroke diesel or a gas V8 (6.2L, and the 7.3L from 2020). On the diesel, most codes come from the emissions equipment (particulate filter, DEF and EGR), the turbo and the Bosch CP4 high-pressure fuel pump, which recall 24V-957 addresses on 2020-2022 trucks. On the gas engines, misfires are usually ignition parts first.
Most common: P0087, P0299, P2463, P20EE, P0401, P0300.
Known problems on the Ford F-250 and F-350 Super Duty
P0087 Fuel Rail/System Pressure - Too Low
P0087 means fuel rail pressure is lower than the engine computer commanded, from a weak pump, clogged filter or failing high-pressure pump.
On the Ford F-250 and F-350 Super Duty: The 6.7L Power Stroke uses a Bosch CP4 high-pressure pump that can fail and contaminate the fuel system with metal; water and poor fuel are common triggers, so drain the water separator regularly. On 2020-2022 trucks, recall 24V-957 (Ford 24S78) updates the software because deposits from aged biodiesel can make the pump fail. Check the fuel filters first.
P0087: causes, can I keep driving, and what to check first →
P0299 Turbocharger/Supercharger "A" Underboost Condition
P0299 means the turbo or supercharger isn't making the boost the engine asked for, most often from a boost leak.
On the Ford F-250 and F-350 Super Duty: Underboost: the original turbo on 2011-2014 trucks had well-known bearing failures (Ford changed the turbo in 2015). On any year, check for boost leaks at the intercooler pipes and boots and for sticking turbo vanes.
P0299: causes, can I keep driving, and what to check first →
P2463 Diesel Particulate Filter Restriction - Soot Accumulation (Bank 1)
P2463 means the diesel particulate filter (DPF) is clogged with soot that normal regeneration hasn't cleared.
On the Ford F-250 and F-350 Super Duty: Soot loading in the diesel particulate filter: short trips and idling keep it from regenerating. Check the DPF pressure sensor and hoses, and give it a long highway drive, before anything expensive.
P2463: causes, can I keep driving, and what to check first →
P20EE SCR NOx Catalyst Efficiency Below Threshold (Bank 1)
P20EE means the diesel SCR (DEF) system isn't cutting NOx enough, often from bad DEF, a NOx sensor or software needing an update.
On the Ford F-250 and F-350 Super Duty: The DEF (SCR) system isn't cutting NOx enough: DEF quality, a failing NOx sensor, the DEF injector or an exhaust leak. Left alone it leads to reduced speed.
P20EE: causes, can I keep driving, and what to check first →
P0401 Exhaust Gas Recirculation "A" Flow Insufficient Detected
P0401 means the EGR system isn't flowing enough exhaust back into the intake, usually from carbon-clogged passages or a stuck valve.
On the Ford F-250 and F-350 Super Duty: EGR flow: soot in the EGR valve and cooler, worse with idling. A leaking EGR cooler also loses coolant; watch the level.
P0401: causes, can I keep driving, and what to check first →
P0300 Random/Multiple Cylinder Misfire Detected
P0300 means the engine is misfiring in more than one cylinder, often from worn plugs or coils, a vacuum leak or low fuel pressure.
On the Ford F-250 and F-350 Super Duty: Gas engines: on the 6.2L, plugs and coils are the usual cause; on the 7.3L, the spark plug wires are a known weak point. A misfire with a ticking noise on the 7.3L needs the valvetrain checked.
P0300: causes, can I keep driving, and what to check first →
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Common codes and known problems as widely reported for these model years; your vehicle may differ. Check nhtsa.gov/recalls and ask a dealer about service bulletins for your VIN, and confirm in your service information.