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  #1  
Old 05-02-2012, 08:42 AM
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Powerstroke problem

I have a 1997 ford powerstroke with 185,000 miles on it with an automatic transmission. When i am driving it in the morning its like the motor will hunt a little bit. The RPM's jump about 100 or 200 and you can feel the truck accelerate very slightly. I haven't looked into it at all seeing it hasn't caused any problems and that i have only noticed it when the truck is cold. Does anyone have any suggestions on what the problem could be.

Last edited by mhecht; 05-02-2012 at 06:19 PM.
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Old 05-02-2012, 11:25 AM
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Does it make a noise? A hissing noise? If so it could be the EBPV(Exhaust Back Pressure Valve) closing so your motor heats up faster. It is completely normal. You will lose a small amount of power when the EBPV is closed too. How long do you let your truck warm up for in the morning?
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Old 05-02-2012, 06:15 PM
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No its not the EBPV i know what that is and no it doesn't loose power and it doesn't make any noise. I let the truck warm up for about 5 minutes or so on cooler days. But when it happens it is almost like someone is pushing the gas pedal down just a little more while my foot is staying still. Could it maybe be the fuel pump or and injector?

Last edited by mhecht; 05-02-2012 at 06:21 PM.
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Old 05-03-2012, 06:32 PM
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Does anyone have any ideas of what it could be?
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Old 05-04-2012, 05:15 AM
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I started to notice it is even doing it when the truck has warmed up.
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Old 05-10-2012, 04:18 AM
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Does anyone know anything on this??
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diesel, engine, fuel, powerstroke, problem

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