The truck is a 1994 F250 4.9L. I just got the truck running again after an engine swap and I am trying to do all the general maintenance items that have been so very neglected by the previous owner.

I am trying to replace the fuel filter and I cant find anyway possible to get the disconnect tool to let me get them disconnected from the filter. I had my buddy who is a dang good mechanic try too and he couldn't get it either.



Am I doing something wrong trying to get the filter off. I tried the yellow tool which is the smallest and the next size up and i cant get it to budge. My buddy did say maybe the set i bought from advanced wasn't long enough to pop that spring or whatever it is out of the way.

He was thinking maybe previous owner messed up the fittings and the only way to fix is to the replace the line. I have seen some posts on here about a repair kit but on a truck that is 22 years old I think I would just rather replace everything and that way when i have the bed off i can fix the broken fuel gauge too.

 

I forgot to add that if i do in fact need to get a new fuel line where can I buy it. I looked on Rock Auto, Ford Parts, Advanced Auto Parts, LMC and noone seems to list it for a 1994.

 

I had a battle trying to do the same thing a few years ago. I had a really nice set of metal fuel disconnect tools. Epic fail. After much gnashing of the teeth and more than a few expletives I made a trip to the store to buy a "cheap" set of plastic fuel line tools.

Like this:


45 minutes round trip to the store. 3 minutes later, job finished.

I did stack the deck a bit in my favor, I sprayed PB Blaster inside the fuel line fitting so it could soak during my travel time.

 

This is the set I have, it worked great on the fuel line behind the head. Have never used them on anything else.


(Forgive my temporary Duct Tape seat repair)

Do these fuel fittings go bad? or is there a way someone could mess them up to where you couldn't get them off the filter?

 

They just get dirt and water in them and rust up a bit. What I usually do is grab a pair of pliers and work the fitting back and forth (turning it). If the fitting won't turn, it will never pull off with the tool.

Spray some WD40 in the fitting (or your favorite oil of choice), work it back and forth with the pliers and then it should come right off when you put the removal tool in.

 

So as long as the circled part spins it will come off? Or the whole line spins?
The fuel line does move back and forth on the fuel filter input and output lines but cant get it over the raised edge. I don't remember trying to spin anything.

 

Since you are changing the filter anyways, why not cut the nipple off the filter body so you can pull the hose down and out of the frame rail so you can see better as to what is going on? Just be careful of the sharp metal edges!

 

Do not forget to push the line towards the filter and hold it there as you push the tool in. Then with the tool all the way in pull the line off.

 

The whole line will spin along with the circled part.

 

Relieving the fuel pressure first helps too....

 

How do I relieve the pressure?

 

There should be a Schrader valve (Like a tire valve stem) up on the intake manifold at the fuel rail.