I bought a fuel filter for my 94 F-250 the other night. I got home and was ready to change the filter. I looked at the filter in the box and it really didn't look like the one already on the truck. I bought the truck used so I don't know a lot about it. The filter on it now has a drain looking thing coming out the bottom of it and a wire terminal that hooks to a wire also. What the heck is that stuff for? Did I buy the wrong filter or do I have to connect the new filter to this stuff? Anybody?
What that is, is the bowl to remove water from your fuel filter. Water is heavier than diesel and will accumulate on the bottom. The bowl has a drain valve (twist type) with a hose to drain off to the side and not allover your exhaust, heads, etc. The wire goes to your instrument panel inside the truck, which will light up if water is indicated inside the bowl. So you never have problems, buy fuel from stations that have a lot of business, this means the fuel is not siiting for a very long time underground and moisture doesn't have time to accumulate.
The easiest way i have found is to remove the whole fuel filter/seperator in one piece, then once removed from engine compartment, seperate the two pieces and put on new filter. When it's time to start the truck, you may have to crank it for a while (if mechanical fuel pump) to get the filter full of diesel.
Hope this helps, I was once in your shoes and now it's second nature.
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