IPR going bad - Ford Powerstroke Diesel Forum
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Old 01-24-2013, 05:13 PM
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IPR going bad

Could somebody tell me what the symptoms of ipr going out. When driving in low rpm you can here the injectors get louder then get quieter. Once you mash the go pedal it goes back to normal . Only happens when below 1500 rpms. Any thoughts on what it could be?


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Old 01-24-2013, 05:28 PM
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Only good way is to check duty cycle with scanner. Check engine light?
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Old 01-24-2013, 05:34 PM
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IPR going bad

Yeah I figured that was the only way. The check engine light is not on though. I just didn't know the symptoms of one going out . Really just need to have it put on a scanner and see really what is going on with it. Also could it be a weak fuel pump causing the issue?


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Old 01-25-2013, 05:49 AM
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kinda hard to tell over internet....but yes, or cps can do it too.
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Old 01-25-2013, 08:21 AM
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IPR going bad

I know I have read somewhere about the color cps to use to replace the old one with. Is it the gray one or the black one?


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Old 01-25-2013, 02:21 PM
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IPR going bad

Bump


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Old 01-25-2013, 02:53 PM
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When my buddies ipr went out it would run rough, wouldn't start or would take awhile, but sometimes start up normal. Would idle just fine but the moment you step on the gas it stalls out. Unplug the icp and see if it gets better.
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Old 01-25-2013, 03:10 PM
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IPR going bad

Ok I'll give it a try and see if it gets better. My truck does have a hard time cranking first thing even if it is warm outside. But I do have some gp's out so it could be a mix of everything together . I will let ya'll know what happens . Keep the suggestions coming though.


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Old 01-27-2013, 08:00 AM
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IPR going bad

Well I unplugged the icp and it seem to get better . Idle was smooth and the injectors noise got better . And the miss I feeling went away . So is it the icp I need to change or the ipr?


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Old 01-30-2013, 03:23 PM
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IPR going bad

Bump it to the top


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