Re: 1999 ford f250 7.3 diesel, leaking fuel out of the...
The drain valve is attached to the fuel filter with 4 screws with the star head. You can use a correct size van allen wrench to unscrew these screws (which is hard to do with little space) and put your new drain valve in. The new drain valves have huge O rings that work better than the seemingly non existent washers that come from the factory. You will first need to take out your fuel filters and drain the filter body because when you take the water drain valve off, all the diesel will come out any way. This is a good time to take apart your whole fuel filter and clean it out good. An air compressor works great. Be careful with the plug in fuel heating element if you do take the plate off that it just under the filter (two allen screws). You can unplug it and clean the bottom of your filter housing so your water drain does not plug up with the stuff on the bottom of the filter housing.
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sounds like a fuel line. trace the fuel line from under the truck on the driversside should go up the back of the motor. the fuel line is probably spraying over to the passenger side of the motor. yes this could cause a power loss.
poss the fuel filter has petrol in it,replace filter,turn engine over with fuel line unattached to clear lines then fire up,should be fine.you may hve a hot start problem for awhile but fill up with diesel at 1/2 tank to dilute any petrol left.in 32 years in the trade i have put petrol in so many diesel cars,and as long as it starts,keep it running,and start only when cold ish.
I am assuming this is a diesel 7.3l powerstroke? Leaking from housing or the drain? If the housing itself is leaking maybe the oring on the lid is bad or it is cracked. If it is leaking out the drain hose the little petcock valve is probably bad. That little hose is for draining out water in the filter housing. Make sure the valve is tightened. If it is get a new valve and install it. If it still leaks take the cover off of the motor and check the o-ring on the lid where the fuel filter goes make sure it is not pinched, hardened, or cracked. Then run the truck with the filter housing exposed and check for leaks and or cracks after of course re-installing the lid for the filter housing.
Should be mounted the same as a 2005. On the inner fender, above the right-hand wheel arch, in front of the windshield washer tank. Pull the retaining clip that secures the control valve to the top of the filter assembly. Pull up the control valve and its hoses, away from the filter. (1) To drain water out of filter: At the bottom of the fuel filter, loosen the drain plug, while holding a container underneath the filter to catch the diesel fuel and water. When you have drained the water, and diesel fuel is now draining -- stop! Twist the drain plug closed, pour a few ounces of fresh diesel fuel in the top of the filter. Use a new O-ring when reattaching the control valve to the filter top. When the vehicle is running, check for any leaks. (2) To replace the fuel filter: start where #1 above begins, disconnect the fuel control valve from the top of the filter; mark the other two fuel lines with tape and disconnect them (they may be attached with spring clamps that you will need to cut -- replace them with screw-type fasteners, see instructions below); remove the fasteners and take the filter and mounting bracket from the vehicle. Loosen the bracket and remove the filter. Fill a new filter with fresh diesel fuel (you don't want to try to turn the engine over to fill this filter -- you may burn up your starter) and install it in the bracket, then reattach the bracket to the vehicle. Attach the control valve with a new O-ring and secure the hoses with screw-type clamps. When the vehicle is running -- inspect for any leaks. Hope this helps -- these are instructions out of the 1998 - 2005 VW manual. Should be no different for the 2006.
Yes directly in the rear of the fuel filter housing there is a yellow valve that is used to drain the fuel/pressure from the filter housing. I personally have replace several of them. They are a little pricey at around $60.00 but includes new o-rings. What will happen is if the valve goes bad it will dump fuel on the p.side next to the engine block, as there is a steel line that hooks to the rubber adapter to the valve. With it running you should be able to see it very easily. If your leak isn't located there, the rubber hose may have come lose from the valve and be dumping fuel into valve of the engine and possibley onto the turbocharger. I would check there first, and if not i would check the fuel filter housing its self. There is an o-ring at the top that could have possibley detoriated or been pinched. Have you had this housing apart recently? Also another mistake in maintenance of the 7.3Ls is the over tightening of the plastic cap for the filter. Let me know how you make out, and we can diagnois farther.