2003 6.0L runs rough on start up - Ford Powerstroke Diesel Forum
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Old 01-30-2013, 08:47 PM
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2003 6.0L runs rough on start up

Hey guys, recently I bought a 2003 6.0L. I'm having a problem with it. On start up it runs super rough and clears out and runs better when it's at operating temp. When I plug it in over night it starts easier but still runs rough. I can tell its some sort of fueling issue. I tested the ficm it measured 48v as it should from what I've read. Could a plugged fuel filter cause this? or is it and injector related issue. heard rev-x may help. where can i get it? Could someone help me out? I'm trying to nip this now before it becomes something more. Thanks!
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Old 01-31-2013, 03:54 AM
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2003 6.0L runs rough on start up

It's injectors, it runs better when warmed up because your engine oil gets hot. Cheap fix would be revx.


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Old 01-31-2013, 07:03 AM
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Okay that's what I was thinking. Once it's warm it's still slighltly hesitant. Where can I get revx?
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Old 01-31-2013, 07:37 AM
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What oil are running? I changed over to T5 10-30 and it made a huge diffrence getting rid of the 15-40. And after a health dose of Archoil she's all better.
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Old 01-31-2013, 09:19 PM
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I'm running delo 15-40
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Old 01-31-2013, 11:10 PM
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2003 6.0L runs rough on start up

You can order Rev X online. I get it off eBay.


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Old 02-01-2013, 02:12 AM
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Ya take care of those injectors Archoil I was told by kinnisoj is holy water. I have 2 injectors that might be sticking. I have similar issues that you do get those injectors clean and lubed up with additives
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Old 02-01-2013, 02:13 AM
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Quote:
Originally Posted by kinnisoj View Post
What oil are running? I changed over to T5 10-30 and it made a huge diffrence getting rid of the 15-40. And after a health dose of Archoil she's all better.
........
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Old 02-01-2013, 06:35 PM
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Where can I get archoil?
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Old 02-01-2013, 06:39 PM
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I got mine on amazon.com. Cant remember what I paid but it wasnt bad
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