2003 F250 Superduty V10 Misfiring
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Junior Member
Joined: Sep 2019
Posts: 1
2003 F250 Superduty V10 Misfiring
My truck is at the dealership right now and has been for over a week. #6 coil was dropping out and caused a miss that I noticed while pulling my camper. My F250 Triton V10 2003 model truck only has 88k miles. I had the spark plugs changed while the coil was being replaced. I drove it 10 miles and it starting missing again so back to dealership I went. They are telling me now that it is dropping out on random coil numbers every time it is restarted and that they do not know what the trouble is. I have already paid $550 dollars and I am now afraid that my truck will never run right again. You would think that a FORD DEALERSHIP would know how to fix it but not this one. Anyone have any ideas.
Senior Member
Joined: Jun 2010
Posts: 16,662
You might consider this,
When a misfire takes place it will usually place a code in the vehicle's computer memory indicating which cyls.
Places like Autozone will check your vehicle's computer for any codes usually at no charge.
If you can get the codes , post them here, OK ?
No guarantees, but it may provide some direction.
From having owned a 2003 , for some reason the original coils started going one after another and I just said this is a pain so I just bought new Motorcraft coils and replaced them all and never had any further problems with coils. If the remaining coils are still the original ones, it may be time to get rid of them. Nine more coils can add up $$$, but if they can't pin down what is going on , it might be worth considering.
When a misfire takes place it will usually place a code in the vehicle's computer memory indicating which cyls.
Places like Autozone will check your vehicle's computer for any codes usually at no charge.
If you can get the codes , post them here, OK ?
No guarantees, but it may provide some direction.
From having owned a 2003 , for some reason the original coils started going one after another and I just said this is a pain so I just bought new Motorcraft coils and replaced them all and never had any further problems with coils. If the remaining coils are still the original ones, it may be time to get rid of them. Nine more coils can add up $$$, but if they can't pin down what is going on , it might be worth considering.
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