To remove pressure in the fuel lines the threads all say to use the schrader valve on the fuel rail. I don't know if mine is different because it is 2001 or a v6 but I can't find the valve for the life of me! I really don't even know what the fuel rail looks like. Can someone please send me a pic of it on a newer v6 or describe exactly where it is and what it looks like?

 

n/m found it

 

to remove pressure u can just remove your gas cap , it will vent the system enough

 

I normally just run mine up on the lift and pull the old filter and install the new. I have never relieved any pressure through the schrader valve or the gas cap. Never had a problem this way.

 

Removing the fuel tank cap won't relieve fuel pressure in the fuel line. the fuel pump is in the tank, and it is pressurized from the pump head to the fuel injectors. The only way to relieve the pressure is to create a relief somewhere on the fuel delivery system like cracking the line at the fuel filter, which works, or releasing it at the fuel rail.

The pressure relieved by removing the fuel cap relieves tank pressure as well as vapor return pressure, not fuel line pressure.

I'm probably just being ****. Sorry Mickey_shouse......

 

I just remove my fuel pump fuse, crank it over until it dies...

 

You can do that, or pull the connector to the emergency shut-off that is mounted above and behind the passenger side kick panel.

 

I found the schrader valve, didn't know it would spray gas all over my hand! Haha but I got it done

 

Glad you got it replaced; also glad the engine wasn't HOT when you depressed the Schrader valve.

I don't bother with depleting pressure: use goggles for your eyes, wrap a rag around the filter line, pull the filter, and install the new filter. If the key is off, I just don't think the pump is going to work.

Nice job!
Curt

 

I always change the filter when the truck has sat for awhile. Usually overnight. Since it's in the garage, I don't have to start it to move it anywhere. I've never released any pressure and I've never had gas spray out when I disconnect the lines. I spill more fuel getting the old filter out of that damn clamp thing that holds it to the frame then what comes out of the lines!!

Why does that clamp thing need to hold the filter with some sort of death grip????

 

The high pressure of the clamp acts as a fuel pressure accumulator. As the pressure accumulates, the clamp lets the volume build, and when you mat the go-pedal, it squeezes more fuel into the intake. Ford called it their "Fuel Pressure Booster" and it's a common failure item. Unfortunately it's a dealer-only item.




Sorry, I guess I've been reading Raoul's posts too often!

To answer the question for real, as was mentioned, removing the fuel cap does not relieve the pressure in the fuel rail between the pump and the injectors, it simply vents the tank. Disabling the fuel pump and cranking it for a couple seconds is the easiest and cleanest method, and only takes a couple of seconds.

-Joe

-Joe

 

I know the clip is in a bad spot too. I finally got the old filter out, then it was lodged between the clip and frame rail So then I had to get it out of there. If that clip happened to break, which it didn't just asking, I would lose fuel pressure? Sounds like a bad system lol