Skip/hiccup/miss??? At idle - Ford Powerstroke Diesel Forum

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post #1 of 13 Old 10-03-2012, 03:49 AM Thread Starter
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Skip/hiccup/miss??? At idle

I was letting the truck idle thismorning when I go to work after my very short commute. Not for long just a couple min. But it would hiccup slightly almos like a miss and when it did it my rpm would gor from 650's to 660's and the truck would rock a bit it only did it for a split second then idles fine for maybe 30-45 seconds then another skip..... I ran the codes the only code that I have is a p1000 could that be it? It didn't say it was a miss though????

Thanks in advance

2008 f-350 CCLB,
Rough country 4.5" radius arm drop lift
doc and Dpf delete
looney street from vivian
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post #2 of 13 Old 10-03-2012, 09:16 AM
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Have you done your tune/DPF delete yet?

If not you could have been in regen. While in regen my truck will do that sitting at a stoplight. However if you were in Park, it would have stopped the regen. So your other option is that it could have been the AC compressor kicking on and off.

-Kyle
'10 F350 CCLB HD
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post #3 of 13 Old 10-03-2012, 10:08 AM Thread Starter
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I have done the dpf cat delete and have the canned sct performance tune on the truck until next Monday. I had the defroster on no ac though. Could it have been the heater? It only spiked rpm for a second then came back to normal in consistent intervals

2008 f-350 CCLB,
Rough country 4.5" radius arm drop lift
doc and Dpf delete
looney street from vivian
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post #4 of 13 Old 02-08-2014, 04:29 PM
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Old thread here but did you ever figure it out op?

2009 F 250 Lariat 6.4 PSD
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post #5 of 13 Old 02-08-2014, 09:57 PM Thread Starter
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Yea it is only when the defrost is on I think is just the blend door opening up and closing.


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2008 f-350 CCLB,
Rough country 4.5" radius arm drop lift
doc and Dpf delete
looney street from vivian
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post #6 of 13 Old 02-09-2014, 05:18 PM
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Quote:
Originally Posted by Motorboy8769 View Post
Yea it is only when the defrost is on I think is just the blend door opening up and closing.


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Interesting, I'll have to investigate my issue further.

2009 F 250 Lariat 6.4 PSD
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post #7 of 13 Old 02-10-2014, 05:38 PM
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Mine does this even with defrost turned off

2011 F250 bone stock CCSB, FX4, PMF traction bars with 4" blocks, PMF 3" front blocks and camber shims, bilstein 5100 shocks.


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post #8 of 13 Old 02-10-2014, 07:06 PM
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Originally Posted by Lancer250 View Post
Mine does this even with defrost turned off
hopefully this weekend I can run some test. I will test the voltage at the batteries to see if there is a voltage drop caused by something electrical turning on and causing the alternator to then start making voltage or I will look to see if my AC compressor is kicking on and causing it. Has to be something causing a load on the engine to make it drop like that. My engine runs too good for me to think it's an injector or something like that.

2009 F 250 Lariat 6.4 PSD
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post #9 of 13 Old 02-11-2014, 06:57 AM
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I've got the same issue however mine also does this with the a/c on. Haven't been able to get a straight answer from anyone.
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post #10 of 13 Old 02-11-2014, 07:52 AM
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I've got the same issue however mine also does this with the a/c on. Haven't been able to get a straight answer from anyone.
I know, me either this seems to be something that no one has a clue about. My next door business neighbor is factory trained powerstroke tech that went indy. I'll pay him to look at it for me. He will probably know what's going on with it.

2009 F 250 Lariat 6.4 PSD
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