Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Ford F-350 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2006 Ford F-350. The contact stated that while the vehicle was parked, the contact noticed that fuel was leaking underneath the front driver's side of the vehicle. The vehicle was taken to an independent mechanic, who replaced the fuel pump block-off plate and plug. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 190,000.
My Ford f350 turbo diesel truck would not go faster than approx. 25 MPH, could not get any power. Came to a stop light and it died and would not restart. Had it towed to the nearest Ford dealer thinking it would be covered by the warranty. They have changed the fuel injector control module-no fix, the fuel pump and filters and found foreign substance/corrosion, pulled the fuel tank and found the source of the corrosion, delaminating fuel tank. The repairs are up to $2500, the fuel tank still to cost $1300 to replace the part but still have labor involved. Also the fuel injectors, 5 of the 8 are exhibiting no power and various other fuel filters that they named off will also need to be changed. That will cost another several thousand. …
This is a 2006 Ford ambulance that has been having issue's with the fuel system over the past two years the most recent was during a emergency response when the ambulance lost power and shut down the crew was unable to complete their response to the emergency because the ambulance would not restart. The ambulance was towed to the Ford dealership they reported the fuel tank was coming apart on the inside and clogging the fuel system. We contacted Ford and complain of all the fuel problem and the most resent the fuel tank the end result was their claiming its not their problem but ours the repair est is over $7000.00 this ambulance has spent more time in the shop then responding to emergency calls and has left our crews sit while in route or on the scene of medical emergency. …
I purchased a new 2006 Ford f-350 diesel truck from monaco Ford in glastonbury, ct. The vehicle now has 52,000 miles and has been in for service twice for lack of power. The service dept at monaco says the problem is that the gas tank is deteriorating & the fuel pump is compromised. I have researched the problem and found numerous complaints from Ford owners re: this exact issue. Ford refuses to take responsibility. They insist that the problem is fuel, not their product. I do not use bio-diesel fuel or buy from discount fuel suppliers. How can so many owners have the identical problem? Ford motor company needs to recall these vehicles. Suddenly loosing power on the highway in a large, heavy truck because an inferior part was used, is a real safety issue. …
Tl* the contact owns a 2006 Ford f-350. While driving approximately 50 MPH, the contact drove over an uneven road surface and the front end of the vehicle began to shake vigorously. The vehicle would also shake abnormally when decelerating. The contact stated that in addition, the check engine warning light was illuminated, the vehicle would erratically shift, and the fuel tank was delaminating. The vehicle was taken to the dealer for diagnostics but the technicians were unable to determine the cause of the shaking. The technicians were able to determine that the transmission shift sensor and the fuel tank would have to be replaced. The vehicle was taken to an independent mechanic where the transmission was rebuilt. And the transmission shift sensor was replaced. The fuel tank was not replaced. The VIN was not available. The approximate failure mileage was 80,000.
My truck starting losing power little by little over a short period of time. The check engine light came on & I took it to the Ford dealership.they advised me that the EGR system was failing & the cost is $2500.00. They also told me that Ford knew about the problem & should have recalled this problem..now I can't drive my truck without worrying about engine failure (until it's fixed)..interstate travel is just about non=existent for now..I will not let my wife drive it anymore for now...this truck only has 75,000 miles on it & for now is not safe to drive anywhere but short distances...
F-350 EGR cooler went bad and smoked up entire neighborhood. Other motorists could not see as the smoke emitted from my f-350 was like a very very thick fog. I contacted Ford, who knows about the ongoing and extensive problem, but they refuse to do anything but "document" the problem and want NHTSA to make it a recall. Apparently there are a lot of other f-350 owners with the same problem. This is very dangerous. I'm not sure if the fumes that are emitted from this problem are safe either.
Tl* the contact owns a 2006 Ford f350. While driving at a speed of 60 MPH, the engine stalled without warning. The contact was able to pull over to the shoulder of the road and was able to restart the vehicle within minutes. The dealer advised the fuel tank was defective and would need to be replaced. This was the first incident of the failure. The vehicle was left in possession of the dealer for repairs. The failure mileage was 57,390 and the current mileage was 57,400.
Trailer break controller faulty, replace EGR and injectors. 3/31/09~ replace EGR cooler, gasket, fuel filters. 6/8/10~ icp sensor & connector faulty, cac hose leaking, injectors faulty, EGR valves changed. 6/25/10~ 17 days later back again in shop for same issue. Truck runs then when you stop the truck in hot weather, it will not restart for about 1 hour. Truck needs to cool down before restarting. And no one can figure out what problem is and fix it correctly.
Tl* the contact owns a 2006 Ford f-350. The contact stated the engine overheated. The vehicle was taken to a dealer. The technician diagnosed that the EGR cooler was faulty and needed to be replaced. The failure recurred on numerous occasions. The failure was repaired but the problem persisted. The manufacturer was notified of the issue. The approximate failure mileage was 65,000. Pam
Fuel System complaints in other F-350 years
Frequently asked questions
How common are fuel system problems on the 2006 Ford F-350?
NHTSA has 22 complaints about the fuel & propulsion system of the 2006 Ford F-350, 15% of the model year's 145 complaints. The component named most often is storage › tank assembly (2 mentions).
Is there a recall for 2006 Ford F-350 fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2006 Ford F-350, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2006 Ford F-350 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 60,000 miles, and 10% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.