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Old 10-19-2013, 07:47 AM
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Slow spool, loss of power

I have a 2006 F250 6.0 4x2, So yesterday as I was leaving work I was accelerating then let off the pedal and the truck stalled. I put it in park and started it back up, it started fine and ran all the way home(about a 30 min drive) on the highway. While on the highway during the drive home it surged once but went back to normal. On one of the backroads I tried to floor it and it spooled so slow and accelerated like it didnt have a turbo. As soon as I turned into our parking lot and put it in reverse it bogged down and stalled again. I started it again and backed into my spot. You can still hear the turbo spool up but nothing really happens. As well as taking off from a dead stop takes a couple more seconds than it normally would just a day ago. Also before the surge on the highway the truck was accelerating like normal. The truck is stock and I just had the STC fitting replaced about 3 weeks ago. The guy who replaced the STC said the ficm has been replaced at some point since the numbers didnt match the truck but said the voltage was right. The truck is approaching 200k and I have nothing on the truck to monitor numbers.
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Old 10-19-2013, 09:41 AM
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Could be a hpo leak, but would need a monitor to check that. Could be fuel pressure dropping out. Hard to say bud. Maybe try advance auto and borrow one of their scangauge code readers.


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Old 10-19-2013, 10:40 AM
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Time for new fuel filters?? I had the same problem right after "bulletproofing" it and it took my dad convincing me to change the fuel filters, which only had about 6k miles on them, to find out he was right. AGAIN! Good luck!
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Old 10-19-2013, 10:48 AM
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Thanks Blue Goose, I did forget to mention that I replaced the fuel filters and the sensor on top of the engine(forget which one that is IPR, ICP, so many abreviations haha).
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Old 10-19-2013, 06:03 PM
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So a bit of an update, I drove the truck a little today and only had a couple mishaps. First was a little "growl" when I let off the accelerator while it was still warming up. Second was when I went to start it again after it being warmed up, it wouldn't turn over right away but did the second go round. It was even accelerating like normal. Just don't get it....ugh!
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