Replace Fuel Filter

[wizdawg]

The guy who bought my old 2000 v6 mustang just called me asking if I had a service manual. He got a new fuel filter and seems worried that if he took the lines off that it would spray gas everywhere. He wants to look up the way you unpressurized the lines before removing them from the filter. I never broke open any fuel lines before, so I wasn't able to say for sure, but what I told him I thought was if the car was off, there is little to no pressure at all in the lines.

So which is it? If you remove the line to the filter will gas gush out under pressure or just want to drip out?

Thanks

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[SVTLSC]

most likely the lines still have like 30 psi unless the regulator is bad. the best way to depressureize the system would be to start it with the fuel pump relay out

 

[wizdawg]

most likely the lines still have like 30 psi unless the regulator is bad. the best way to depressureize the system would be to start it with the fuel pump relay out

And if you didn't depressurize it, how much you think would come out? 1/4 cup? 1/2 cup? few drops?

 

[rdsnake]

Depands on if the car is warm or not. Best thing to do is, let the car sit for awhile, remove fuel cap, remove lines but cover them with a couple rags and your good to go. No biggie

 

[Flyn]

There is a pressure release valve on the engine [at least there is on our '03/'04 Cobras and I assume the V-6 would have it, too]. Tell him to follow the fuel lines in the engine compartment to find it.

You don't get a lot of fuel coming out if you don't depressurize [maybe an ounce or so] but it can shoot several feet.

Even after depressurizing, there will still probably be drips or a small spurt when he removes the fuel filter.