6.0 engine miss - Ford Powerstroke Diesel Forum
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Old 02-17-2012, 02:26 PM
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6.0 engine miss

03 6.0 195,000 mi last week I started noticing a real bad engine miss between 1400-1800 rpm, engine usually missis a little untill it gets warmed up but this is all the time now. I kinda poke along to save fuel most of the time so I got out on the interstate and ran it hard for about 50 mi to ,clean it out, no change. It seems to be worse when just cruising along and not so bad above about 2000 rpm or so.
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Old 02-17-2012, 02:40 PM
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Here is a great link with all kinds of t-shooting tips
No start issue? Look here.



Quote:
To best help you troubleshoot any problems you might be having with your truck over the Internet the members of this group need specific information. You will have to take some measurements, scan for codes, gather all the PID data from the PCM you can.

Without a physic connection to your truck solid data is the only tool we can use to help you with a solution via the web.

Here are some of the most useful bits of data to help us help you. Sometimes photos do a great job of helping explain the problem and helping the next guy to see your post solve his problem.

Trouble codes?
FICM voltage when cranking and running?
ICP and IPR data ?
T-shooting you have done ?
Have you load tested the batteries to be sure both of them are good?
Maintenance and repair history ?
What was changed last before your problem started?
Does it act up when hot or cold or both?
Were you towing or heavily loading your truck ?
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Old 02-17-2012, 02:45 PM
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Ham man is right. We need lots more info.
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Old 02-17-2012, 02:46 PM
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Would say most likely a bad injector, but could be a lot of things...
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Old 02-17-2012, 02:48 PM
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The top suspects ( guess ) based on the very vague description you provided.

Turbo is dirty and needs cleaned.
FICM voltage is low or you are having injector stiction issues
EGR valve is dirty and is sticking open ( needs cleaned )
Fuel pressure is low and you have one or more malfunction injectors.
Fuel filters needs changed
Your truck is mad at you.

Puttering around trying to save fuel is a great way to invite problems with a 6.0
These motors needs to be driven hard and exercised to there potential or else they will revolt against you. If you want to save fuel park the truck and buy a Focus. ( I love mine, 40 mpg )

Last edited by HAM_RADIO_MAN; 02-17-2012 at 02:53 PM.
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Old 02-17-2012, 05:48 PM
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you are right the details are kinda sketchy, egr delete at 160,000 changed fuel filter 3,000 ago but i did run the tank almost dry a few days ago but this prob started before that, just charged both batteries a few days ago. I don't know how to check ficm voltage.
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Old 02-17-2012, 05:52 PM
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thanks for the t-shooting links, and I know better than poke along with the 6.0 but man diesel is expen. I thought about the icp sensor but the last time it went bad I just didnt have any power did not have the missing issue.
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Old 02-17-2012, 05:55 PM
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After i drove the interstate this morn the missing did get a lot better, I was heading to Colorado from Florida but was afraid to get too far from home so I turned around and came back. Maybe I should have kept going?
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Old 02-18-2012, 11:29 AM
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I cleared the codes and unhooked the batteries for awhile, then drove the truck HARD with more than a few wide open throttle runs from stopped to 90mph. Rechecked codes p0306-#6 cylinder misfire P0603-ICM KAM error p1000- OBDII monitor status, is this going to be a bad injector or control module?
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