Missing/hard starts - Ford Powerstroke Diesel Forum
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Old 07-01-2014, 07:37 PM
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Missing/hard starts

I've noticed this for a while but it's progressively getting worse. No matter if it's 100 degrees out when I start up I'd runs really rough and until water temp reaches 160 it misses and runs really rough doesn't like to shift it runs fine after about 10 miles. At first it has zero power and will barely move itself. It's an 06 f250 I've done oil goer egr delete head studs gaskets and FICM (reman). Thanks for any help
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Old 07-02-2014, 07:54 AM
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You'll need to get a scan tool to find any codes, and you will need to get values on your ICP, IPR, and FICM values.

Are you seeing hard starts only when warm? Does the truck fire off just fine when cold? Warm meaning, you run it down the road, shut it off, and it's a hard start when at operating temps. Cold as in when you first start it up in the morning.

We want to help, but we need a lot more info. It could be a high pressure oil leak, or something else. Let us know.
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Old 07-02-2014, 04:33 PM
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Not so much hard starts it doesn't crank long before firing but once fired it runs very rough until warmed up. All this no matter 100 degrees out or 30. Once it's warm it starts and runs great.
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Old 07-07-2014, 06:34 PM
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I had the same problem. i had misfires on all 8 cyl. i replaced my fuel injector control module and it fixed that problem. located on top of left valve cover.
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Old 07-09-2014, 02:54 PM
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Quote:
Originally Posted by wingsandwalleyes View Post
Not so much hard starts it doesn't crank long before firing but once fired it runs very rough until warmed up. All this no matter 100 degrees out or 30. Once it's warm it starts and runs great.
This is why in my previous post I advised you to get values. Throwing parts at the truck won't really help you understand the problem to best fix it.
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Old 07-09-2014, 03:01 PM
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A monitor to read the exact numbers from the engine is the most important tool for these trucks. Without it you're pissing in the wind.
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