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post #1 of 6 Old 11-01-2013, 08:32 AM Thread Starter
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new guy help already

So just bought my first diesel 2007 f250 6.0 fx4. Truck runs great starts fine cold but when warm it cranks way longer to start. No monitor system on it yet and gonna try to grab a scanguage2 today if possible. But without that is there any idea as to what could cause this? Dealer of course will be no help bought as is they say never go there again lesson learned
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post #2 of 6 Old 11-01-2013, 11:57 AM
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It does it only when the engine is up to normal operating temperatures?

If so this is called a hot start problem. It involves the high pressure oil to fire the injectors. They need at least 500psi to operate. You may have a blown seal in an injector or oil rail or your HPOP may be going out? These are all guessing with out any further info. You need to get some sort of monitor.

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post #3 of 6 Old 11-01-2013, 12:01 PM
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Need to look at ICP voltage. The convert the voltage to pressure and see what your high pressure oil is at while cranking. If you can't get 500psi when hot, then you have an oil leak. Not supposed to post links to other forums so I will PM you a link to the conversion chart. Hopefully someone with way more info could help out also. Good luck. There are also several videos on YouTube that walk you thru checking for a hot no start.

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post #4 of 6 Old 11-01-2013, 12:03 PM
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may also be dummy plugs or stand pipes or STC fitting


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post #5 of 6 Old 11-01-2013, 02:22 PM
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Quote:
Originally Posted by MyTractorsSexy View Post
may also be dummy plugs or stand pipes or STC fitting
Yes. Forgot that.

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post #6 of 6 Old 11-01-2013, 05:05 PM Thread Starter
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appreciate all the quick responses. Well bought the scangauge 2 today and what good is it gonna do when I cant even figure out how to get the info I need or use it lol
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