2003 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
2003 · All trims · All engines
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Ford F-250 Super Duty has 11 documented known issues, with 8 rated critical. The most serious are 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak ($1,500-$5,000 repair), 6.8L V10 and 5.4L Triton 2-Valve Spark Plug Ejection from Aluminum Cylinder Head ($300-$1,500 repair), 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure ($900-$2,500 repair), 7.3L Power Stroke Camshaft Position Sensor Failure - Sudden Stall and No Restart ($80-$300 repair), Speed Control Deactivation Switch Underhood Fire - Recall 07V-078 ($0-$0 repair), 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts ($3,500-$8,000 repair), 5R110W TorqShift Torque Converter Failure and Debris Contamination ($2,500-$6,000 repair) and 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start ($2,000-$5,000 repair). Across all issues with published estimates, repair costs range from $80 to $8,000. DIY maintenance guides at au7o.io.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Ford F-250 Super Duty has 11 documented issues. The most frequently reported are: 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak, 6.8L V10 and 5.4L Triton 2-Valve Spark Plug Ejection from Aluminum Cylinder Head, 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure. Of these, 8 are rated critical and should be addressed promptly.
The 2003 Ford F-250 Super Duty has 11 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 8 issues are rated critical: 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak and 6.8L V10 and 5.4L Triton 2-Valve Spark Plug Ejection from Aluminum Cylinder Head and 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure and 7.3L Power Stroke Camshaft Position Sensor Failure - Sudden Stall and No Restart and Speed Control Deactivation Switch Underhood Fire - Recall 07V-078 and 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts and 5R110W TorqShift Torque Converter Failure and Debris Contamination and 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Ford F-250 Super Duty issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak, typically costs $1,500-$5,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The 6.0L Powerstroke diesel in 2003-2007 F-250s is infamous for EGR cooler failure. The cooler develops internal cracks that allow exhaust gas to enter the cooling system and coolant to enter the exhaust. This produces white smoke from the exhaust, coolant loss, and can cause hyd… Repairs typically run $1,500-$5,000. Severity: high.
The early 2-valve Triton aluminum heads used in the gas Super Duty carry only about four threads in the spark plug bore. Combustion pressure and heat cycling gradually pull those few aluminum threads until the plug backs out and is ejected from the head, often taking the coil-on-… Repairs typically run $300-$1,500. Severity: high.
The 6.0L's engine oil cooler is a coolant-to-oil plate cooler with extremely narrow coolant passages, and it sits first in the coolant path ahead of the EGR cooler. Casting sand, silicate dropout from the factory gold coolant, and general debris pack those passages solid. Once re… Repairs typically run $900-$2,500. Severity: high.
On the 1999-2003 7.3L Power Stroke the camshaft position sensor is the PCM's only engine-position input. When it fails the PCM no longer knows when to fire the injectors and the engine simply shuts off - often at speed, with no warning and no check engine light. It may restart af… Repairs typically run $80-$300. Severity: high.
The speed control deactivation switch threads into the brake master cylinder and is electrically live at all times, even with the key out and the truck parked. Brake fluid migrates past the internal diaphragm into the electrical side of the switch, where it corrodes and short cir… Repairs typically run $0-$0. Severity: high.
The 2003-2007 6.0L Power Stroke uses only four torque-to-yield head bolts per cylinder to clamp the cylinder heads to the block. Under high cylinder pressure - towing, hot ambient temperatures, a stuck VGT turbo, or any power tuning - the TTY bolts stretch, clamping load falls of… Repairs typically run $3,500-$8,000. Severity: high.
The 5R110W TorqShift automatic behind the 6.0L and 6.4L Super Duty trucks is a strong unit, but its stamped-steel torque converter with a single-disc lockup clutch is the weak link. Heat from towing, added horsepower, or fluid that was never changed cooks the lockup clutch lining… Repairs typically run $2,500-$6,000. Severity: high.
Each 6.0L HEUI injector contains two spool valves actuated by high-pressure engine oil. Oil varnish, coking and wear cause the spool to stick - 'stiction' - so the injector cannot respond to the FICM's command quickly enough. The signature is unmistakable to owners: a hard cold s… Repairs typically run $2,000-$5,000. Severity: high.
The Fuel Injection Control Module on the 2003-2007 6.0L steps 12 volts up to the roughly 48 volts the HEUI injector solenoids need. The module is mounted on the driver's side valve cover where it lives in constant heat and vibration, and its power-supply section degrades - almost… Repairs typically run $400-$1,200. Severity: medium.
The 1999-2003 7.3L routes exhaust from each head to the turbo through two up-pipes sealed with crush-type 'donut' gaskets, one of which is buried under the engine in an awkward position. Constant heat cycling and expansion blow those gaskets out, so exhaust escapes before it reac… Repairs typically run $500-$1,500. Severity: medium.
The factory steering damper on the F-250 Super Duty wears out and fails, leading to increased steering shimmy, vibration at highway speeds, and reduced ability to dampen road imperfections. The single factory damper is often inadequate for the weight and solid front axle of the S… Repairs typically run $100-$400. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
