would air in my fuel system cause this???? - Ford Powerstroke Diesel Forum
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Old 01-10-2010, 06:32 PM
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Question would air in my fuel system cause this????

ok so a little info ive had a miss and injector cackle going on. i noticed tonight that when i went to start it i listened to the fuel pump and it kinda sounded like there was something like air going threw it. my question is if air is getting in there can it cause a miss? im still kinda new to diesels. if there is air getting in im assume its gettin in where the fuel line connects to the pump cause i replace the pump cause i though it was bad. i still have the oem one that i kept for a spare. the issue when i replaced it was the power wire was groundin out on a bracket that it had rubbed threw the wire. sorry for babling any info would be helpful. thanx
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Old 01-10-2010, 06:35 PM
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Send a message via Yahoo to bigcountrysg
Yes poor fuel supply can cause a miss and poorly running engine. It is possible you are sucking air with the fuel pump.
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Old 01-10-2010, 06:39 PM
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Order the pre-pump/tank kit from diesel innovations and it possibly could eliminate your problem. I did mine and the truck is so much quieter it dont even sound the same.
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Old 01-10-2010, 07:05 PM
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Well im gonna try putting my original pump in and see what happens. the stuff in that kit i can buy at the local hardware store if i can figure out the sizes if compression fitting and fuel line they use for cheaper than they want for it. though i will keep that in mind if i can't figure out the sizes and the oem pump doesnt cure it.
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Old 01-11-2010, 04:58 AM
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found guzzles right up on the in tank prepump mod - Welcome to guzzle's In-tank Hutch Mod Web Page - so now i have the sizes and i actually have the compression fittings and metal line sitting here collecting dust. so if the oem pump doesnt stop the air im gonna do that mod.
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Old 01-11-2010, 11:21 AM
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well upon further inspetection cause my dad siad he smelled diesel when i was at his place, i found out that the water seporator valve is leaking fuel whick would mean air is getting in so i guess im replacing orings. i will be doing the tank mods when it warms up.
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Old 01-19-2010, 10:24 AM
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well it was the orings on the drain vavle. still has a miss and knock once in a while. im gonna do a buzz and contribution test as soon as my buddy gets back from bein otr. figured i update incase any one was havin an issue.
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