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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

6.4 power loss

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Old Jan 2, 2017 | 07:06 PM
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6.4 power loss

I have a 2008 f350. Engine light is the only thing on . But have little power / turbo. Any ideas?
 
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Old Jan 2, 2017 | 07:24 PM
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Hi, and welcome to FTE!

As to your problem, do you have any way to read what codes are stored?

Have the fuel filters been changed recently?

Air filter?

Is your truck in stock form? Or has it been deleted and tuned?

Can you monitor fuel pressure?

What about turbo boost, are you getting low numbers? (I assume you probably are)

High exhaust back pressure is something else that kill power. That can be caused by a plugged DPF, assuming your truck is stock.
 
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Old Jan 2, 2017 | 07:26 PM
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The turbo is basically inactive when the dpf is clogged or the right dpf sensor is bad.
 
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Old Jan 2, 2017 | 07:29 PM
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Truck is stock no mods as of yet. Taking it to ford dealership tomorrow to put on machine. Just trying to see what everyone else thinks so I can be more educated when they start throwing out stuff to me. Yes the turbo is low numbers. Thanks for the reply.
 
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Old Jan 2, 2017 | 07:39 PM
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Also no filters or anything has been changed by myself. Bought the truck with 132.000 on has 133,000 now. Started acting like this about a month after I purchased it. Have had it for 5 mo now.
 
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Old Jan 2, 2017 | 08:04 PM
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Fair warning, it can be a $1000 or more to take care of a DPF problem. If you are thinking about deleting, keep that in mind before spending money to take care of the sensors/dpf if that is what the problem is.
 
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Old Jan 3, 2017 | 04:42 AM
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I do plan on doing the delete. Just taking to get all the codes to see how bad it is.
 
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Old Jan 3, 2017 | 01:09 PM
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I got a code it is P040D what do you think ?
 
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Old Jan 3, 2017 | 01:27 PM
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It could be this one. Fix
 
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Old Jan 3, 2017 | 01:48 PM
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Thanks i will look into that
 
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Old Jan 16, 2017 | 12:32 PM
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sounds like your truck is overheating and is going into limp mode. i suggest doing a little research on limp mode for your year of truck. good luck and i hope you figure it out. hope its not to big of a problem.
 
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Old Jan 16, 2018 | 09:16 PM
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I have a p040d code and limp mode. I broke off the sensor on the up pipe. does anyone think I can get a egr and dpf delete tuner that it'll bypass this sensor? then I can just plug it in and zip tie it somewhere?
 
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