View Full Version : F-250 Fuel/Water Seperator

03-03-2008, 10:23 AM
On a '06 250 Powerstroke with the 6.0L can anyone tell me where,how and how often the water is drained? I have looked under the truck and where the fuel lines come forward to a unit that looks like the fuel pump in the frame rail by the drivers feet, there's a removable black cap on the rear of the pump,but I ain't unscrewing it without more info. I sure don't see any kind of petcock for an easy drain, what am I looking for?

03-03-2008, 11:15 AM
I have an 04 with the 6.0, under the drivers side seat area along the frame rail find the fuel pump. On the right side when looking up at it there is a gold plug with a hex head fitting on it. Unscrew it and get ready, the fuel comes out hits the frame rail and goes everywhere. I drain mine every 5000 miles when I change the oil.

03-03-2008, 11:59 AM
Thanks Okee, I'll check it out when it warms up, yesterday 75 degrees, snow and freezing tonight! Texas weather!!!AAUUG

03-03-2008, 09:40 PM
You'll need a 6mm hex driver, it's tight, so use some leverage, once it "cracks" loose, turn it slowly until the water runs out and you see clean fuel, tighten it up but only by hand, the plug is aluminum and it will strip the threads with any more than hand torque. There's an O-ring inside that takes care of sealing it, so no over torquing it.

03-04-2008, 12:12 AM
that big black cap is the main fuel filter

03-04-2008, 12:18 AM
Yup, one on the HFCM (inside the frame rails) and and another on the secondary filter in the engine compartment.

03-07-2008, 11:00 AM
What about a 2000 F250 with 7.3? Does it have a place to bleed out water?

03-07-2008, 11:12 AM
yes, on the fuel bowl there is a yellow valve. turn it. another thing you might wanna do is add on to the drain line. it dead-ends right at the bottom of the block, i added fuel line to the end of it so i can stick a water bottle or something of the sorts to catch it all and look at the fuel. if you have never done this before, chances are your drain valve will be blocked up. if thats the case, dont mess with it, these fuel bowls are horrible. thats why i got rid of mine.

03-07-2008, 11:17 AM

03-07-2008, 11:21 AM
anyone with a powerstroke, go to powerstrokenation.com, and sign up. nothing but good info. when it asks you for a refferall put slowleak.

03-08-2008, 06:36 AM
Thanks Y'All, Drained that puppy,no problem, collected it all just to see if there was any water and didn't see any thanks for the tip on the main fuel filter being under the black cap, I normally just tear something apart and fix it but making a mistake these days cost too much to do that!

03-08-2008, 12:37 PM
for those of you looking to make this process easier. Check out this upgraded drain plug. I have one and it works great. You should be able to get one from any international dealer if I remember correctly.

03-08-2008, 01:03 PM
What about a 2000 F250 with 7.3? Does it have a place to bleed out water?

Put a pan under truck.:waving: