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Resources for the Repair and Maintenance of your 2003 Ford F-350 Super Duty

2003 Ford F-350 Super Duty

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2003 Ford F-350 Super Duty Problems

Exhaust & Emissions -- Verified

Delamination of the diesel fuel tank can occur resulting in a loss of power due to debris clogging the fuel filters. In some cases the fuel injection pump and/or fuel injectors have also been damaged. Ford has issued a service bulletin (#19728) addressing this concern. This issue can affect all diesel F-350, F-450, F-550, F-650, and F-750 Super Duty models.

Engine -- Verified

The high pressure diesel fuel injection pump may fail, resulting in a "no start" condition.

Engine -- Verified

The cooler for the EGR valve can leak coolant internally, which causes white smoke to come from the tail pipe. Hot exhaust gases are cooled by the EGR cooler before being circled back into the engine.

Engine -- Verified

A severe lack of power may develop because the hose from the turbocharger to the intake manifold can come loose, resulting in loss of boost pressure to the engine.

Engine -- Verified

An illuminated Check Engine Light could indicate that one or more of the ignition coils has failed due to excessive spark plug gap. To fix this problem, the ignition coils that have failed, the spark plugs, and all coil boots should be replaced.

2003 Ford F-350 Super Duty Recalls (Recent)

Body, Interior & Misc., March 7, 2003

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The courtesy lamps on affected running boards may overheat when exposed to moisture and road salt. Overheating may cause the lamps and boards to melt or start a fire. Dealers will replace the wiring harness for these running boards.

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Drive Train, March 12, 2007

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Ford has recalled 2003 Excursion and F150, F250, and F350 trucks because the speed control deactivation switch may leak and overheat, which can create a fire hazard. Dealers will install a fused wiring harness to the deactivation switch wiring.

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Electrical & Lights, July 22, 2004

RepairPal Expert Overview:

On trucks equipped with the 6.0L diesel engine, the engine ground stud for the negative battery cable may be loose. A loose ground may cause current to flow through the radio suppression strap causing it to heat up, and potentially melt or ignite nearby components, which could lead to a fire. Dealers will replace the engine ground stud and the radio suppression strap, and nearby components will be inspected for damage. The recall began July 23, 2004. The Ford recall number is 04S15.

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Engine, December 29, 2007


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2003 Ford F-350 Super Duty Questions and Answers

admiral, 2003 Ford F-350 Super Duty, 7.3L V8 Diesel Turbo, Marietta, GA

When accelerating or maintaining steady speed going up hill only,(empty or loaded)in top gear (manual tranny) I experience a high but relatively slight and steady vibration until my speed increases...

Todd Miller, 2003 Ford F-350 Super Duty, 7.3L V8 Diesel Turbo, Clio, MI

Runs rough and white smoke starts hard

Visitor, 2003 Ford F-350 Super Duty, 7.3L V8 Diesel Turbo, Belen, NM

Exactly one year ago about a 150 miles into our trip pulling our 5th wheel we started up a hill at about 60 mph the over drive light on the cruise control came on indicating over drive was off and ...

ttman47, 2003 Ford F-350 Super Duty, 7.3L V8 Diesel Turbo, Houston, TX

I was trying to get an estimate for repairing the front crank shaft seal but the only thing it shows is for the oil pan reseal which cost twice as much as a dealer charges. My understanding is tha...

mlbrooks, 2003 Ford F-350 Super Duty, 6.0L V8 Diesel Turbo, Hayward, CA

unable to select tow haul mode due to button not lighting when being depressed

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2003 Ford F-350 Super Duty Reviews

As far as the paint or clear coat coming, this problem would be from the factory when painted, the primmer coat might have been bad,clear coat problems is pretty much the same. I have a F350, 2002, 7.3 diesel, I service it with a marine grease every 3,000 miles, I use nothing but a good marquaires marine polish on the clear coat, this adds the oil to the paint or clear from drying out, esp in hot area's, looks new still, pay attention to the hood and top. I use nothing but delo 400 oil, with motorcraft filters which the filter you can get at walmart far cheaper than the ford dealer, use nothing but motorcraft fuel filter. I have 119,000 and just had to replace my starter no problems any kind. the 2003 6.0 were garbage. the weight of the vehile with the V10 or 7.3 is vary heavy,maintance is a must, but wear to the front area is a problem.

Bought new in 2003 with the V 10 to tow my camper during the summer and Used very lightly mostly as a commuter for work (25 mi. a day) 78000 mi
This spring i had to spend $1800.on front end work and rear shocks, new struts ,ball joints,sway bar, tie rods & ends and steering stabilizer.Then another $95 on alignment. When checking the oil mechanic found the dipstick entry in the block had rotted. Looking at that repair it was found that both exhaust manifolds have warped. Now i'm looking at another $2500 repair. Considering this is a heavy duty truck I'm not impressed. Other repairs included replacing all 10 of the coils,and both locking hubs.
Even with washing and waxing on a regular basis the paint in spots is flaking off the rear fenders and bubbles are showing up in another areas.
This is my 4th Ford truck 2 used and 2 new but i don't now if i'd buy another


My first truck was a GM and couldn't wait to get rid of the darn thing. I'm on my second Ford F350. It now has 135000 miles and no problems. Love these trucks. Dependable for the big towing jobs I have to do. Solid and comfortable too. Good sound sytem, comfortable seats. all the amenities. I haul horses almost every weekend. Take a look at the parking at th bigger horse shows and you'll see FORD. Maybe a random Dodge or GM but those of us who depend on our trucks go FORD.

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