Help - Water / Fuel Drain valve leaking ?? - Diesel Forum -
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #1 of 6 (permalink) Old 02-25-2007, 07:04 AM Thread Starter
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Help - Water / Fuel Drain valve leaking ??

Need help from anybody that has had similar issue....

I was doing basic routine maintenance our 2000 Excursion 7.3 PSD and after draining the water/fuel valve and replacing the fuel filter I gave it the leak check. Never had a problem in the last 6 years doing the same thing.

Notice a drip coming directly from the fuel line leading from the drain valve. Tried moving back and forth several times to reseat it but no luck. Currently have a piece of fuel line hose clamped to it with the other end blocked off.

The drain valve appears to be bolted next to the fuel filter.

Wanted to know if this is a serviceable part? Rebuild kits available or go straight to FORD for a new one? Any one ever went through this have any pointers?

Thanks in Advance


2000 Ford Excursion 4x4 7.3 PSD
2002 Ford F250 CC Lariat 4x4 7.3 PSD
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post #2 of 6 (permalink) Old 02-25-2007, 07:21 AM
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Re: Help - Water / Fuel Drain valve leaking ??

Real common as of late with the new ULSD. See the link at the end of my sig. Hope this helps!

Black 1999.5 F250SD XLT AUTO 4x4 reg. cab(6/99), Pre-pump & Tank Mods, AFE Intake, Racor Filter/Separator, HX Mod, ZooDad, WW, Power-pedal Mod, Pop-up gooseneck ball,Brush Guard, 3.5" lift, BFG Commercial AT tires (265/75), 65hp ATS chip, and #2 cologne. Ball joints replaced, and thinking about a BTM and shocks....!

Drain valve repair write-up with pics
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post #3 of 6 (permalink) Old 02-25-2007, 07:30 AM
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Re: Help - Water / Fuel Drain valve leaking ??

Click me Use that link and then look for "Fuel Filter Drain O-Rings" (about half way down on that page) on Black Clouds site. Fairly simple to fix, and a very common problem on our trucks.
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post #4 of 6 (permalink) Old 02-25-2007, 03:29 PM
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Re: Help - Water / Fuel Drain valve leaking ??

Use Sabre2th-

I just sent him the money via PayPal (see the bottom of his write up), had the O rings 2 days later, and used his write up to R&R.

30 minutes tops, and stopped the leak TOTALLY.

Just be sure to tape the torx bit on your socket, or you'll have to fish it out of the valley (trust me [img]/ubbthreads/images/graemlins/wink.gif[/img] ).

But all and all, very easy fix, and no more leaky. [img]/ubbthreads/images/graemlins/smile.gif[/img]



2000 Excursion 7.3L PSD 4X4
DP-Tuner F5 : no start, stock, 40T, Decel, 80T, 80E - AutoMeter A pillar w/ 3 Phantom gauges - DIY Tymar intake w/ S&B conical filter - Zoodad mod - Suncoast Extreme Duty Trans rebuild w/ TransGo Shift kit, Amsoil synthetic ATF & Magnefine inline filer - BD Triple Disc Billet Torque Converter - 4" Stainless Steel Turbo Back (4" down pipe) Magnaflow exhaust - ATS Turbo housing and 4" intake sleeve - Turbo Master Wastegate Controller - HX Oil Crossover - Morse Ceramic brake pads - Monroe Reflex Shocks - Energy Suspension Bushings - IC foil wrap delete - Fumoto Oil Valve - 08' Aluminum Rear Differential Cover - White Night reverse light system - Garmin StreetPilot c340 GPS - 6.o tranny cooler - Dieselsite Coolant Filter w/ CAT ELC coolant - Amsoil Single Bypass Oil Filter w/ Rotella 5W40 synthetic oil - APC white gauge cluster face - Dual in-dash DVD w/ Infinity Reference speakers & Blaupunkt 200A powered sub - 4.5" LED marker/turn lights in front bumper - ViAir HD onboard air system w/ 380C compressor, 2.5 gal tank & Grover stutter tone air horn - FireStone RideRite suspension air bags -

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post #5 of 6 (permalink) Old 02-25-2007, 05:27 PM Thread Starter
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Re: Help - Water / Fuel Drain valve leaking ??

Thanks to all , Write Up looks good so I'll be tackling this project this week.

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post #6 of 6 (permalink) Old 02-26-2007, 07:24 PM
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Re: Help - Water / Fuel Drain valve leaking ??

Before you replace them, you may want to try the following procedure. I had trouble with mine on two different occasions and replaced O-rings both times. It has since leaked temporarily right after flushing and replacing fuel filter.

Now, when finished with filter, I simply start the engine. While it is running, I do a series of 1-2 second blasts for 6-8 times quickly closing the yellow valve all the way each time. This apparently cleans the Oring area sufficiently for no more leaks. I have done this successfully the last two filter changes with no leaks.

As for replacing the small Orings, it is pain in the a** if you have big hands. Very difficult to manipulate the small 1/4" wratchet with Torx.

99.5 F-250,XLT,CC,SWB, 2wd, 6-speed, white, tow pkg, many extras, prepump and tank mods, Banks monster exhaust, SCMT 1705, Timbren rear springs, LUK clutch
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