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Old 03-20-2010, 07:02 PM
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fuel filter - issues please help asap

I changed my fuel filters last night and left the water separator valve open. I drove truck this morning down the road and it died on me. I stopped and fuel was pouring out of the valve. I closed the valve and the truck would not start again. I am not sure if understand how to purge the system correctly because i don't ahve a manual, but i have tried to turn key on for 30 seconds and then shut off and continuing to do this. I ran the batteries down so i am charging them again. I turned key on and pushed a key into that schrader valve that is close to the upper filter. I a couple of air bubbles came out, but it still wont' crank. it cranked once or twice earlier in the day and wouldn't stay running.

Should i try to get it to run on a small amount of starter fluid ....it turns over, but won't crank. Is it possible that an air bubble is keeping fuel from leaving the upper filter and entering the engine. I am at a complete loss here.
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Old 03-20-2010, 07:12 PM
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NOOOOOOOOOOOOOOOOOOOOO starter fluid!!!!!!!

You'll really screw things up.

It has to be on air, you just have to keep trying until you get it off air.

It'll work - just keep trying.
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Old 03-20-2010, 07:13 PM
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what is the proper way to purge the system.
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Old 03-20-2010, 07:16 PM
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Turn the key on for about thirty seconds. Do this 6 times without starting the truck.
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Old 03-20-2010, 07:20 PM
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i did it like twenty times. How long do you shut the key off for and where does the air exit the system at.
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Old 03-20-2010, 07:23 PM
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When a good amount of air gets in the system, I always pull the top filter and turn the key on until it can fill up the top bowl. Once it can fill that bowl up you are good to go.
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Old 03-20-2010, 07:26 PM
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Scratch that. You will need to crack open one of the fuel lines at the fuel cooler to bleed the air out of the system if I am thinking right.
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Old 03-20-2010, 07:50 PM
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anybody have a write up or information on how to drain the air out. I have fuel in the top filter bowl. I am just not sure it is getting out of there into the engine.
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Old 03-21-2010, 12:08 AM
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Quote:
Originally Posted by spderjhn View Post
i did it like twenty times. How long do you shut the key off for and where does the air exit the system at.
you should just have to turn the key to the off position. The air is forced through the system by the fuel being pumped into the engine and will eventually be forced out. Turn key to on position without trying to start. Leave it there for 30 secs. turn key off. Repeat at least 6 times for normal fuel filter replacement. I'm assuming you cracked the top filter and cycled the key until it was recieving fuel. Tighten and keep cycling the key for 30 secs. It should eventually start but will probably take a while to purge all the air since you airbound the whole system.
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Old 03-21-2010, 11:48 AM
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I don't think i am getting an fuel pumping in order to get the air out of the system. I have tried to bleed the high and low pressure out of the system and there is no fuel coming out. So I am open for suggestions.
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