I change my fuel filters religiously.

I have 1/2 tank of fuel.

"Water in fuel" light came on last night. I drained filter under chassis. Light came on again just now, less than 100 miles after draining.

Bad fuel or bad filter?

Thx

 

Could be either one. drain your hfcm again and catch a sample.
You could also suck up a sample from the tank with one of those mighty vac brake blleed kits adapted to the fuel line from the tank to the HCFM.

Some times you can get a lot of water in the tank from a contaminated fill up at a station.

 

If you haven't done as stated above you may want to. when I drain the hfcm I also drain it into a clean container let it settle and check for water or debri. I have yet to get any water over two drops. Even when my water in fuel message comes on. You may have to clean the sensor if you get the message repeatedly without evidence of water in the system.

 

A bad filter doesn't cause the wif to come on. Water or a corroded sensor will. A bad filter will give you other types of problems.

 

No parts shop in my town has part number FD-4604, which is the part listed in the manual. Anyone know where to find it?

 

Nm. I remember they changed it to 4616. Lol

 

Don't ya just love it when they change/supercede a part number that you have been useing for years LOL
For years Ford V8 gassers FL1A was the Motorcraft oil filter. Now I don't even know what it is anymore.

 

Are you overdue for a filter change? If you are not I would not waste $ on new filters. If your within your interval pull the plug and spray out the hfcm. Most use brake or carb cleaner. Let that dry out for 5-10 minutes before putting the plug back in. Either of the cleaners you don't want in the injectors.

 

Actually the filter is doing its job. You can clean out the hfcm by spraying brake clean up in the drain hole, most likly some garbage stuck to the sensor.

 

Double post

 

So it is not just me. I ben noticeing that my replies sometimes will not post for several minutes or I get a message that it is a double post but nothing to cancel the post

I have been seeing a lot of double posts lately. Here is one more.

 

After draining the HFCM spray some carb cleaner in the drain hole. You may be surprised at what come out. That trash can thorn on the WIF light also. If your a FX4, some heat shrink on the straw makes a handy extension.

 

I have often pulled the side cover off and found some kind of white gunk almost completely bridgeing the gap betweeh the sensor elements. Just a few drops of water could set the light off again.

 

Daughter just drove her truck from NC to MA pulling trailer and complained about it going into limp mode more and more the further she went. Got to see the truck yesterday and noticed some odd orange-ish color marks just below the fuel fill door. Pulled the cap off and threads on fill and cap were soaked with liquid rust - it had even pooled up on the lower fill threads. Can't figure out how that would have gotten there but I'm guessing it had something to do with the performance issues. With all the rust marks on the fender, had to be a couple of fill ups where the cap was dangling against it. I can't figure out how it would get there since there was no rain the whole trip so am assuming she got a bad load of fuel somewhere with some extra moisture on it. Fuel tank normally isn't under pressure is it (drove straight through with 4 fill ups on the way) unless in the hot sun maybe?

 

Maybe just some "drool" from the nozzle? That's odd, I haven't ran into fuel that bad before.