2003 6.0 starts, dies, then starts and runs fine - Ford Powerstroke Diesel Forum
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Old 04-02-2013, 08:31 AM
SWF SWF is offline
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2003 6.0 starts, dies, then starts and runs fine

I have a 2003 F350 with a 6.0 liter powerstroke. The ficm has been recently repaired, replaced all injectors about a year ago, new ICP sensor, recently replaced the bypass spring in the top fuel filter bowl, and it has a new fuel supply pump. It has about 65 pounds of fuel pressure when running. After sitting overnight, it will start just fine, but will "hiccup" within a second or two after starting. If it sits a day without running, it will actually die at least once after a second or two. In either case, once it starts and runs, it starts and runs fine all day with plenty of acceleration and power. No codes are showing, so I don't know where to go from here.
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Old 05-07-2013, 08:59 AM
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I wound up at the dealer, because I couldn't figure it out. Supposedly, after-market oil filters are shorter than Motorcraft filters and have some kind of drain plug in the bottom of them that lets the oil run out when you lift it out of the filter bowl. This can be a problem, because there is already a spring-loaded plug in the bottom of the oil filter bowl for the same reason. If the filter doesn't sit on top of it just right, oil can drain out of the filter bowl over time. This causes a delay in priming the HPOP which can cause the injectors to stop working for a second or two. This causes the engine to sputter or die. The same thing can happen with a loss of fuel from the filter bowl or if the check valve on the supply pump leaks. Anyway, that's what they told me. After changing the oil with a Motorcraft filter, so far, so good.
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Old 05-13-2013, 12:55 PM
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It hasn't died yet, but still sputters after startup at least 2 or 3 times per week, so I guess my trip to the dealership with the oil change and Motorcraft filter didn't solve the problem. No codes showing, so I don't know where to go from here.
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Old 06-05-2014, 09:38 AM
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I had this same problem and replacing my HPOP fixed it.
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Old 06-06-2014, 07:15 AM
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You are right. The HPOP begins to leak internally causing it to lose prime at first, causing the engine to die after startup. Later, it will leak so much that the injectors won't work when the oil gets hot, because it can't generate enough oil pressure. A new one fixed the problem.
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Old 06-16-2014, 10:06 AM
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I have a similar problem going on but this did not start until i had the oil changed on my truck recently, i did purchase a motorcraft filter for the oil change, do you think that it may not be seated properly?
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Old 06-16-2014, 12:42 PM
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Quote:
Originally Posted by mikeb01453 View Post
I have a similar problem going on but this did not start until i had the oil changed on my truck recently, i did purchase a motorcraft filter for the oil change, do you think that it may not be seated properly?
The quickest thing to check is make sure the filter cap is also a motocraft one.

Here is a pic showing both and the differences in height.

Last edited by Blown F-150; 06-16-2014 at 12:52 PM. Reason: Found a better Pic
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Old 06-17-2014, 03:07 AM
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yea i think i have the wrong filter, even though i purchased one from ford and gave it to them to install...

Last edited by mikeb01453; 06-17-2014 at 03:18 AM.
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Old 06-17-2014, 03:17 AM
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im going to double check today though
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Old 06-23-2014, 07:26 AM
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yea my cap looks as it should, i hope this isnt the HPOP
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