Rough idle??? - Ford Powerstroke Diesel Forum

 
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post #1 of 6 Old 06-10-2013, 11:13 AM Thread Starter
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Rough idle???

So I'm still new to the diesel world but I bought my 2008 f250 xlt about 10 months ago. All that I have done to it is put a 6" lift with 35" toyos and a dpf delete with a h&s xlt pro tuner on a mild tune currently. I recently just did another oil change and all my filter changes and the truck seems to still be having a rough idle at a cold start and even after warm up. It seems to get a lill better after warm up. This is what I found after I did my filter change and cleaned everything out in my lower fuel filter. What are your all's opinions and what else should I do to the truck to keep it running smooth?





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post #2 of 6 Old 06-10-2013, 12:09 PM
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I would keep a close eye on your filters and start running some good fuel system cleaner. The best cleaner is biodiesel, if you can find any local to you. If you do find some biodiesel local and run it, keep a spare set of fuel filters in the truck as the bio REALLY cleans things out and can clog your filters up pretty quick.

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post #3 of 6 Old 06-10-2013, 02:07 PM Thread Starter
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Do you know if biodiesel with effect my tune on the truck with the h&s tuner?
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post #4 of 6 Old 06-11-2013, 03:44 PM Thread Starter
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post #5 of 6 Old 06-12-2013, 03:13 AM
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It won't affect anything as long as you have a DPF delete.
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post #6 of 6 Old 06-12-2013, 04:13 AM
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Also, get some Sea Foam.

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