Turbo loss of power while driving - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 07-23-2013, 11:35 PM Thread Starter
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Turbo loss of power while driving

2003 F350 6.0 at about 205k. Original turbo and other mods are bullydog tuner, K&N Intake, 4 inch back magnaflow exhaust. While driving occasionally I accelerate and then I feel the turbo up to about 15 psi then it will start to sputter and start blowing black smoke. Only happens when truck is cold, and I usually turn the truck off and on and continue driving. Happen 3 times within the last 3 weeks and she's my daily driver.
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post #2 of 4 Old 07-25-2013, 12:04 PM Thread Starter
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Could they be dirty vanes?
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post #3 of 4 Old 07-25-2013, 01:40 PM
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It could be a sensor...

The black smoke means that the engine can not adjust the fuel that the injectors deliver to the cylinder, because it can't feel how much air you are pushing into the cylinder.
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post #4 of 4 Old 07-25-2013, 08:19 PM Thread Starter
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What sensor could it be?
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