Fault P0472 - Ford Powerstroke Diesel Forum
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Old 09-20-2013, 12:05 PM
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Fault P0472

Just bought a beautiful 2007 King Ranch F250 with 95xxx miles on it. Cleanest used vehicle I ever saw. Got it at a great price, but First day of ownership I was easing around trying to see what kind of fuel mileage I could get out of it, and it stumbled out of a stop sign. Very MIS-LIKE and about 3 seconds later check engine light came on. Took it to O'Reilly's and had code checked. P0472 I had them clear it, and called a buddy who is a mechanic, and asked him about it. How told me all about the exhaust clogging, ETC...., but in the end told me to put some good fuel conditioner in it, and drive it like I stole it. Well two days and fault has not come back. I used two cans of Seafoam to a tank. About 30 gal I'd say. Any other advice? This is my first Ford. I've always owned Chevy's. I hope I will not regret this. I can already tell upkeep on Fords is MUCH more expensive.
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Old 09-20-2013, 06:15 PM
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Like you, I always owned Chevy's and the "War Wagon" was my first Ford. You won't be disappointed. Once you figure out how these things run and how to properly maintain them, they will last a lifetime. I had a little stiction going on and Revex cured it right up. Next oil change I would recommend switching to Rotella T-6 5W-40 with Revex oil additive and motorcraft filters. Change out your fuel filters (motorcraft also) at the same time and at next fill up use Revex fuel additive. I know not everyone will agree with this but it fixed mine. Almost 270K on the same injectors.
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Old 09-20-2013, 06:23 PM
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Exhaust back pressure sensor. Either the sample tube from the manifold is sooted up, the sensor itself is failing, or their is an electrical fault such as a loose connector or chaffed wire.
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