Rough Idle When Warm - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 02-13-2013, 07:43 PM Thread Starter Rookie
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Rough Idle When Warm

Alright, I put this in the "problems" section and not one person replied, I find it hard to believe I'm the only one thats had this issue.

My Excursion has a slight rough idle that doesn't seem to be there first thing in the morning, but more after its warmed up and ran. It runs just fine but seems to have what feels like a sporatic miss when sitting still. You can feel it but the factory tach hardly moves, just a tiny bit.

I have installed UVH clips and like I said it runs fine, I can't seem to figure out what the issue is, any help would be great.

I did search through the archives but most seem to be when cold or the UV harness issue.
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post #2 of 3 Old 02-13-2013, 08:09 PM
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Re: Rough Idle When Warm

It could be stiction with your injectors. Mine would act like it had a misfire. I switched to rotella T6 oil and added rev-x and have yet to see it again.

My RAZR made me send this...


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post #3 of 3 Old 02-13-2013, 11:38 PM Sponsor
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A ton of people have that issue, including myself. I have done everything short of changing injectors and it is still there. I have learned to just live with it.

Some things it could be are CPS, IPR, ICP, injectors, UVCH, etc... If I ever find the problem with mine I will let you know what solved it.

Do you have a way to monitor data and run tests via the OBDII port?

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