bleeding feul system??? - Ford Powerstroke Diesel Forum
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  #1  
Old 02-18-2007, 05:49 AM
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bleeding feul system???

hey guys my fuel lines looked pretty gross so i ripped them all out and replaced them all.

now i have heard that you have to bleed the system so that NO air is in it. unlike a car where you can just flick the pump on and go.

can someone explain IN DETAIL how i would go about bleeding my fuel system????

again i replaced ALL THE LINES front to back, every inch.

thanks
jeremy
( diesel newbie ) lol
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Old 02-27-2007, 06:36 AM
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On the fuel filter/water separator assembly on the firewall you will see a valve that looks like i tire valve. Push the valve open and crank the engine over untill its pure fuel comming out. Be a good time to change the fuel filter since you got rid of the old lines before you bleed the system.
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Old 02-27-2007, 07:33 AM
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i put a new fuel filter on about3-4000 kms ago.. sould i change anyways??

my filter is on the pass. side vavle cover. ( on a little bracket that holds it up )

same thing tho?? im still looking for a tire check valve to bleed it??

wont turning the motor on like this loose all my fuel from the filter to the injectors?? will i have to bleed that after?

thanks guys!!
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Old 02-27-2007, 07:46 AM
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been awhile lol since i seen under the hood of idi

There should be a valve with the end that looks like that of a tire. You changed the lines from the inj pump to the injectors? If thats the case i can't help you there. The old truck i had the fuel guage was wrong and i ended up running it dry. i filled it up and cranked it over till there was pure fuel comming out the check valve then just cranked it over a few times untill the fuel got to the injectors. It ran bad for a couple of minutes untill the air worked its way out then it went fine.
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Old 02-27-2007, 07:56 AM
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i changed from both tanks, to teh switch to control which tank you use, then up to the fuel pump, and from the return ( out of the back of the intake ) to the switch.

i left the lines from teh pump to the filter and from the filter to the injectors. if that valve on the filter itself? on on the housing that holds the filter upsidedown.
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Old 02-27-2007, 08:57 AM
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its not on the filter. It is on the passenger side like you said. The water seperator/heater is on the firewall on the drivers side right?
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Old 02-27-2007, 09:23 AM
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im not sure.. whats it look like?? my fuel FEED line goes from the pump ( pass side ) up to filter on top pass side valve cover ( then hard line i believe to the fuel rails... not 100% tho.. im at work ill check when i get off ( 2 hrs )
so the valve you speak of is on the heater thing on the firewall?? so my fuel line should go to the firewall right? im almost 100 % sure it doesnt to there. but i could be wrong . it would heat and stuff BEFORE hitting hte motor correct???
thanks again!!
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Old 02-27-2007, 11:43 AM
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the valve is on the passengers side. My old truck was an 87 and the water seperator/fuel heater was on the firewall on the drivers side, so yes the fuel lines must have gone there before hitting the filter. I know alot of guys bypassed the seperator heater as it was prone to leak air into the lines over time. If you could post an underhood pic that would help. I do belive the seperator changed places in the late 80's early 90's.
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Old 02-27-2007, 11:58 AM
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just got home ill go take some pics and see if i can find hte thing on the firewall
i can garentee mine hasnt been worked around since my dad owned the truck since new and he doesnt play with stuff
lol
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Old 02-27-2007, 12:39 PM
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sorry my digi is being dumb.. have to wait for sister to get home..
i found the tire vlave thing.. its on my fuel filter neck thingy..

so i just depress that WHILE turning it over to bleed my system?
sounds too easy
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