Hard acceleration issues - Ford Powerstroke Diesel Forum
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Old 10-02-2013, 06:21 PM
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Hard acceleration issues

Hey Im curious as to what might be happening with my truck, when I drive it normally i have no issues with power or anything of that sort, but now when i decide to punch it and get moving the truck starts to sputter a little bit and im not getting the full effect that i used to. I havent changed anything recently and this just started happening. I do have a fuel pressure gauge that reads roughly 55-65 regularly and about 50 when foots on the floor. I did do the blue spring and havent really noticed too much of a difference, it also is tuned with a SCT flash ford programmer, and i have straight stacks on it. I really have no idea whats going on, my next project is the whole head bolt and gasket fix, but i dont think this is whats the issue, any ideas???
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Old 10-02-2013, 06:24 PM
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is the turbo spooling? your vanes could be sticking and not spooling like it should.
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Old 10-02-2013, 06:55 PM
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yeah it is spooling, how would i check the vanes though? my boost gauge does say its pushing pressure but how do you check if its doing it right
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Old 10-05-2013, 02:57 AM
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Sorry for the thread jack I also have a similar problem with mine but i'm noticing some coolant oozing out of the degas bottle under hard acceleration. When I check the degas bottle when the engine sat overnight the coolant was at the min level after a long drive pop the hood and check the level and the coolant was way above the max line, to where you can hear air exiting or entering through the cap when pressurized. Not sure if that's a H/G or EGR cooler or maybe both ?
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Old 10-05-2013, 12:32 PM
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subscribing. My 04 is doing the same thing. Just noticed it today on the highway when I try to accelerate hard, the truck sputters.
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Old 10-07-2013, 10:49 PM
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Sputtering

My '04 yesterday had some very hard misses as I accelerated when it was still a little cold. It ran fine the rest of the day.
This morning it started fine and would go at a slow speed but under acceleration or at 50 and above it would hardly run.
Drained water seperator and replaced fuel filters. No change. Don't know what to check next.
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acceleration, fuel pressure, head bolts, head gasket

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