This is 2002 Ford Ranger - not Ranchero. This truck has butchered up/patched up fuel lines which I need to replace. As I see it, Ford ran two nylon fuel lines from the tank to the fuel filter under the cab and then one nylon fuel line on to the engine compartment. Playing with a new fuel filter, I believe the two fuel lines from the tank connect to empty space on the inlet side of the fuel filter. A centered port on the inlet side of the filter is 5/16" diameter. The other port, offset to the side, is 3/8" diameter. I assume here that the 5/16" port is pressurized fuel from the pump and the 3/8" port is a return to the tank. The two nylon lines from the tank to the filter appear to be the same size although clearly the (missing) quick connectors would have been different sized. My real question is why did Ford do this? Why run a return line all the way to the fuel filter? Why a return line at all except to always have flow through the pump to prevent over heating? Why nylon fuel line? I see it as difficult to splice without heating - ugh!
In all the connectors are really simple to disconnect at the filter It's a matter of a squeeze and pull if they are still there they make repair kits for the lines The lines are made so there is one less chance to leak and for emission standards ( rubber will leach vapors ) As the video states hot water I just found this it may help a lot
In fuel systems with a return line, the fuel pump is continuously pumping gas through the fuel system at a much higher rate than is actually needed. This keeps gasoline in the fuel lines cool and flushes out any vapor bubbles that might form. This prevents vapor lock in your fuel system.
With the nylon line repair kits, I always heated the hose barb, instead of the line, making the line easier to handle, as the barb only heats what line it touches. Having said that, the nylon line is still a pain to handle when you repair it.
I do so in boiling water, and handle the barb with needle-nose pliers. No sense in zorching my fingertips....
I tried all the hot water options. Well ha ha ha ha ha! I finally gave up and used a heat gun on the vinyl lines but what a pain in the a**! Damn vinyl wants to buckle when pushing hard on the barb. Horrible idea that vinyl.
Yeah, it was. My experience was with the '89 Bronco I used to own, oh so many years ago. I'm recalling that night, and what I did to prevent the buckling, was to hold the line right near where the barb is, and go a couple millimeters at a time. A total PITA, but a necessary PITA. And, using the heat gun, I'm glad to see you're still here to tell the story....