What is the 2003-2007 Ford F-250 Super Duty 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start?

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.

What is the 2003-2010 Ford F-250 Super Duty 5R110W TorqShift Torque Converter Failure and Debris Contamination?

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.

What is the 2003-2007 Ford F-250 Super Duty 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts?

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.

What is the 2005-2007 Ford F-250 Super Duty 6.0L Power Stroke STC Fitting Failure on the High-Pressure Oil Pump - Hot No-Start?

For the 2005 model year Ford revised the 6.0L's high-pressure oil pump and introduced a two-piece 'snap-to-connect' (STC) fitting on the HPOP branch tube. The two-piece fitting flexes with engine movement, wearing the internal seal and the locking ring until high-pressure oil lea… Repairs typically run $600-$1,600. Severity: high.

What is the 2003-2007 Ford F-250 Super Duty 6.0L Power Stroke FICM Failure - Low 48-Volt Output Causing Hard Start and Misfire?

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.

What is the 2005-2008 Ford F-250 Super Duty 3-Valve Triton Two-Piece Spark Plug Seizing and Breaking Off in the Head?

When Ford moved the gas Super Duty engines to 3-valve heads for 2005, it fitted a long two-piece spark plug whose lower ground-shield section sits deep in the bore. Carbon packs the annulus around that shield, welding the plug into the head. On removal the plug shears at the join… Repairs typically run $400-$1,800. Severity: medium.

What is the 1999-2025 Ford F-250 Super Duty Steering Damper Failure and Shimmy?

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.

Ford · Known Issues

2006 Ford F-250 Super Duty Problems: 9 Known Issues

2006 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2006 Ford F-250 Super Duty has 9 documented known issues, with 6 rated critical. The most serious are 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak ($1,500-$5,000 repair), 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure ($900-$2,500 repair), 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start ($2,000-$5,000 repair), 5R110W TorqShift Torque Converter Failure and Debris Contamination ($2,500-$6,000 repair), 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts ($3,500-$8,000 repair) and 6.0L Power Stroke STC Fitting Failure on the High-Pressure Oil Pump - Hot No-Start ($600-$1,600 repair). Across all issues with published estimates, repair costs range from $100 to $8,000. DIY maintenance guides at .

Frequently Asked Questions

What are the most common Ford F-250 Super Duty problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2006 Ford F-250 Super Duty has 9 documented issues. The most frequently reported are: 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak, 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure, 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start. Of these, 6 are rated critical and should be addressed promptly.

Is the Ford F-250 Super Duty reliable?

The 2006 Ford F-250 Super Duty has 9 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 6 issues are rated critical: 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak and 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure and 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start and 5R110W TorqShift Torque Converter Failure and Debris Contamination and 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts and 6.0L Power Stroke STC Fitting Failure on the High-Pressure Oil Pump - Hot No-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.

How much does it cost to fix common Ford F-250 Super Duty problems?

Repair costs for known Ford F-250 Super Duty issues range from $100 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.

What is the 2003-2007 Ford F-250 Super Duty 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak?

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.

All 9 Known Issues

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Frequently Asked Questions

What are the most common Ford F-250 Super Duty problems?

Is the Ford F-250 Super Duty reliable?

How much does it cost to fix common Ford F-250 Super Duty problems?

What is the 2003-2007 Ford F-250 Super Duty 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak?

2003-2007 Ford F-250 Super Duty: 6.0L Powerstroke EGR Cooler Rupture and Coolant Leak#

2003-2007 Ford F-250 Super Duty: 6.0L Power Stroke Blown Head Gasket from Stretched Torque-to-Yield Head Bolts#

2005-2007 Ford F-250 Super Duty: 6.0L Power Stroke STC Fitting Failure on the High-Pressure Oil Pump - Hot No-Start#

2005-2008 Ford F-250 Super Duty: 3-Valve Triton Two-Piece Spark Plug Seizing and Breaking Off in the Head#

2003-2007 Ford F-250 Super Duty: 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure#

2003-2007 Ford F-250 Super Duty: 6.0L Power Stroke HEUI Injector Stiction - Spool Valve Sticking on Cold Start#

2003-2010 Ford F-250 Super Duty: 5R110W TorqShift Torque Converter Failure and Debris Contamination#

2003-2007 Ford F-250 Super Duty: 6.0L Power Stroke FICM Failure - Low 48-Volt Output Causing Hard Start and Misfire#

1999-2025 Ford F-250 Super Duty: Steering Damper Failure and Shimmy#

What is the 2003-2007 Ford F-250 Super Duty 6.0L Power Stroke Engine Oil Cooler Plugging - The Root Cause Behind EGR and Head Gasket Failure?