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1994.5 - 1997 7.3L Power Stroke Diesel  

Water Seperator drain

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Old Jul 23, 2022 | 04:16 PM
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Water Seperator drain

I have an E-350 and finally located what must be the drain tube for the filter/water separator, where's the petcock for it? The tube enters the 'V' and disappears, the van is not workman friendly, is there some special doodad that I can't see or is it an ordinary petcock/valve thing?
I've read thru all the shop manuals and don't a valve, plenty of advice on how to catch the goo and to shut it off when it's clear liquid, just nothing about where to shut it off at.
thanks, Oj
 
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Old Jul 24, 2022 | 07:54 AM
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Should be on the front side of the fuel bowl with a yellow handle that you slide one way or the other.
 
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Old Jul 25, 2022 | 05:39 AM
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Okeydokey, I found it and after tugging, prodding, pushing I finally pushed it in the right way so it rotated from 6 oclock to 9 oclock but nothing has dribbled out the tube. Shouldn't I have seen something?
 
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Old Jul 25, 2022 | 07:27 AM
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Sounds like the bottom of the fuel bowl is clogged up.
 
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Old Jul 25, 2022 | 09:42 AM
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Mine would not drain until the truck was started or the filter cap was unscrewed to release vacuum IIRC
 
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Old Jul 25, 2022 | 12:17 PM
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Originally Posted by ojh
Okeydokey, I found it and after tugging, prodding, pushing I finally pushed it in the right way so it rotated from 6 oclock to 9 oclock but nothing has dribbled out the tube. Shouldn't I have seen something?
it is a mechanical fuel pump, no fuel fuel pressure to drain unless the engine is running.
 
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Old Jul 27, 2022 | 07:09 AM
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Originally Posted by BuddyBarnes
Mine would not drain until the truck was started or the filter cap was unscrewed to release vacuum IIRC
Same here.
 
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Old Jul 28, 2022 | 04:32 PM
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When you get it finished, run some power service thru your fuel system, it will clean up the fuel system and injectors. read the label on how much to add to a full tank. this from an old retired truck driver who has driven trucks for over 40 years.
 
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Old Jul 30, 2022 | 06:30 AM
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Good advice, what brand do you recommend?
 
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Old Jul 30, 2022 | 08:12 AM
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Originally Posted by ojh
Good advice, what brand do you recommend?
Power Service in silver jug for summer,white jug for winter -anti gel
 
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Old Jul 30, 2022 | 04:46 PM
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Originally Posted by Super Davey
When you get it finished, run some power service thru your fuel system, it will clean up the fuel system and injectors. read the label on how much to add to a full tank. this from an old retired truck driver who has driven trucks for over 40 years.
Great additive. I experienced quicker starts, smoother idling and 1-2 more mpg on highway.

 
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