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Old 07-07-2012, 09:30 PM
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Rough Idle check engine light on

So i have a 97 f-250 7.3l powerstroke that is idleing hard after start up the check engine lights is on. Wondering what it could be any advice would be greatly appreciated thanks.
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Old 07-07-2012, 09:44 PM
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probably the icp or ipr (always get them confused) sensor. its located on the front of the drivers side head behind the ac compressor.. its a 3 wire plug. try to unplug it as the truck is running and see if there is any change in the idle. no change = bad sensor. also - if there is oil coming out of it, thats also a sign its either not working or on its way out. i think its the ipr..
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Old 07-07-2012, 09:56 PM
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just to add - hopefully thats your problem cause its a nice simple fix.. usually the 2 sensors that are common to go bad on these are the ipr and cps ( injector pressure regulator / cam position sensor i think are the propper translations) usually when the cam sensor goes, the truck either runs or it doesnt from what ive read. i changed both trying to figure out what my issue was, and it turned out being the ipr. i got mine off ebay cause it was the cheapest place you could get one at the time. i suggest looking there. im pretty sure motorcraft or interanational are the only places that offer replacements.
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Old 07-07-2012, 10:16 PM
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thanks for the help i'll see if that fixes the problem
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Old 08-21-2012, 04:08 PM
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i had some similair issues where it would idle really rough, like it was misfiring, then it would die. Turned out to be my fuel pump relay was sticking. replaced it and that fixed the issue.
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Old 08-28-2012, 08:42 PM
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If its a auto trans try starting it in neutral
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