6.0 possible HPOP issue... - Ford Powerstroke Diesel Forum
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Old 03-03-2013, 07:25 PM
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6.0 possible HPOP issue...

Alright my truck when i bought it, it took about 2 seconds of cranking for it to start i would just count 1 mississippi 2 mississippi and start. But i have started noticing that it takes much longer like 4 to 5 seconds but only when its warm, when its cold its still like 2 seconds.It just seems like it cranks over forever to start. From resurch i have done i think it could be my HPOP or the sct fitting in the HPOP but i need some help, could it be something else or any suggestion on what else to look for. Also is there a way to check the HPOP or no.
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Old 03-03-2013, 07:32 PM
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Re: 6.0 possible HPOP issue...

What oil are you running? Did this start after an oil change? Your description sounds like an o-ring on a stand pipe that is worn/torn. When the oil is cold and thick it has a harder time "leaking" past the o-ring. When the oil is hot and thinner, it has less of a problem getting past the o-ring. Not to say that it can't be something else but this sure fits your description.

I know you said that it seemed to change but it may not be broken or it may not be oil related.

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Old 03-03-2013, 08:09 PM
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It started about 300+ miles after my first oil change on the truck, and i used 15W-40 not shure what brand but my dad said he got the best oil he can and he is a diesel mechanic but he works on big work equiptment not really pickup trucks. I also did the fuel filters and oil filter and i also put a ford brand oil filter cap on the truck bc the PO had a different one on there and it was much taller than the ford brand. any suggestions i just want to know some bc i am going to call sheilds diesel which is the place that did my headstuds and 4 injectors when i called them and asked about the work done they said they did all the updates to the truck so i just want to know what to ask to see if they have fixed it already, the work was done at 118,000 and its got 132,000 on it now.
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Old 03-03-2013, 08:28 PM
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also is there any way to diagnose this type of problem?
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Old 03-04-2013, 04:08 AM
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Re: 6.0 possible HPOP issue...

You can introduce shop air into the HPOP system and listen for leaks. If your dad works on any CAT or International engines this shouldn't be a problem for him since they use the same bsic system on some of them. If shields is close to you it may be easier to have them look at it.

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