96 powerstroke running rough.Help please! - Ford Powerstroke Diesel Forum
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Old 10-25-2011, 05:57 AM
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96 powerstroke running rough.Help please!

hey guys i need some help. i got a 96 f250 manual trannie with 276000 miles. it has been running a little rough, and has lost power.when it starts it smokes pretty good for a few minutes. when warm at idle its got a rough idle. and on the highway it just doesnt feel smooth anymore. without a load on it it still pulls hills pretty good but put just a small load on it and it lays down.i know i need to put a turbo on and that is on order but i dont think it has to do with the rough idle and smoke. everything is stock as in there is no performance upgrades,stock turbo stock size injectors. so if i could get some advice on where to start i would be thankful.
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Old 10-25-2011, 08:41 AM
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Blue smoke or black smoke or white smoke?


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Old 10-25-2011, 08:48 AM
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Check UVCH connectors. Near pass and driver side intake man. If there burnt or crisp you have a problem.
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Old 10-25-2011, 11:48 AM
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It is white smoke, and also are talking about the valve cover gaskets, they are new,with new pigtail connnectors.
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Old 10-25-2011, 11:59 AM
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yes valve covers. There new, oh ok. scratch that off the list.
How many miles are on the truck?
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Old 10-25-2011, 12:02 PM
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276000, and everything is stock
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Old 10-25-2011, 12:11 PM
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When was the last oil change? Sometimes I have seen them smooth out with an oil change.


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Old 10-25-2011, 12:11 PM
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Any blow by?
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Old 10-25-2011, 12:19 PM
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Last oil change was less than 200 miles ago. And how do I test or check for blow by?
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Old 10-25-2011, 12:31 PM
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Take your oil filler cap off, flip it over and set it on top of the hole. Does blow by coming out of the valve cover knock it off or just move from engine vibration?
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