2003 Ford F-150 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Ford F-150
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Our experts translate recalls into plain English
2003 Ford F-150 ProblemsExhaust Manifolds Can Crack and Cause Leak
A ticking noise may develop from the engine due to a warped exhaust manifold. Damaged exhaust manifolds will require replacement to correct this issue.
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.
An oil leak may develop from the the right side head gasket. Oil from this type of leak will commonly drip onto the starter. Our technician tell us an updated head gasket is available to correct this concern.
2003 Ford F-150 QuestionsEverytime I step on my brakes my parking lights come . (1 answer)
And inside the truck the radio and mileage light goes off
After installing new plugs/wires I still have a rough running engine. I've checked everything and all installation looks correct.
I'm wondering about disconnecting the battery to see if it helps to reset things.
What are the downsides of doing the disconnect ?
I'm using the sp-504 spark plugs. They come preset at .044.
The service manual says use .054, but refers to an extinct plug agsf-34EE .
Which gap should I use, .044 or .054 ?
2003 Ford F-150 RecallsPossible Corrosion of Fuel Tank Straps
Vehicles sold or currently registered in states using corrosive chemicals to de-ice the roads may have fuel tank straps that can rust prematurely and fail. If the fuel tank were to shift as a result of a broken strap, the fuel lines could separate or the fuel tank could contact the ground. In either case, a fuel leak could develop, increasing the risk of a fire. Dealers will replace the fuel tank straps with straps that have increased corrosion protection. Early in the campaign, if replacement straps are not available, dealers may install a cable support under the strap as an interim repair or a steel reinforcement over the existing strap as a permanent repair. This recall is expected to begin September 12, 2011. The Ford recall number is 11S21.
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.
Ford has recalled certain 2003 F150 trucks to inspect the retainer nut at the pitman arm where it mounts to the steering gear. On some trucks, the retainer may loosen, which can cause noise and lead to a possible detachment of the pitman arm. A loss of vehicle control could result. Dealers will tighten the pitman arm retainer nut to the appropriate specification.