I am unable to get the quick-connect 3/8" fuel line connector at the pump to release. I have been using the metal scissor type of release tool. Is there something special about this fitting that requires a different tool? Has anyone been successful using the blue plastic tool from the Lisle 37300 kit?
Thanks for any help you can offer.

 

They can be hard to release
Once the tool is in place you push in on the fuel line, push it towards the tool you are holding in place

The tool doesn't release the connector by pushing it in, the connector releases by pushing it over the tool

Yes, the plastic ring tools work well, I like them better than the metal scissor type

 

Thank you very much for your reply. I can have access to a plastic tool tomorrow, and will arrange to give it a try.

There is good movement, about 1/16", when pushing the connector back and forth while in the "connected" state. My technique so far has been to push the connector in the "on" direction as far as it will go, and then insert the tool to, I presume, push the barbs to the side and allow the connector to withdraw.

 

Twist the fuel line back a forth a few time to loosen the O-ring
Then do the opposite
Push tool in as far as it will go then push fitting onto the tool and it should slide off backwards

I think the plastic ones are better because its one handed and you have to pull the plastic ring toward the connector with your fingers so your palm pulls the connector forward, lol

 

Well, no joy. The plastic tool has positive action when I insert it, and I can feel a step change in resistance as the connector is pushed toward the tool, but the barbs don't release. Perhaps they are damaged in some way.

If the connector has to be replaced, can the flexible braided-like tubing be re-fitted with a new connector?

 

I am continuing with my battle to disconnect the fuel pump.

I have concluded that the quick-disconnect fitting at the pump end of the line will likely not come off without being damaged. So today, my question is about what options/methods I might have to replace the fuel line running between the pump output and the fuel filter? The pump output pipe is 3/8" and the inlet pipe to the fuel filter is 5/16", so there must be a transition somewhere. The flexible line, where it exits the quick-disconnect fitting, has a fabric like covering and appears to be smaller than 3/8". Perhaps that is where the size transition takes place? There is a change in the line from flexible to steel about 18 inches away, after which it continues on to the filter.

I think the Dorman company offers nylon hose(rated 90 psig) and fittings that should work as replacement between the pump and filter. Has anyone got any suggestions or experience that would mean this is not a good plan, or that there is better way?

I will appreciate any information you are able to provide.
( As an aside, I am new to the forum, and I am wondering if the subject of my original post should have been posted in a different section?)

 

All the Ranger fuel lines are 5/16" nylon, but Ford did use both 3/8" and 5/16" fittings on the ends

Does your fuel filter just have 2 ports, in and out?
Ford changed to 3 ports in 2001 but any vehicle 1998 and up can have that setup

In any case Dorman sell Ford connectors in 3/8s to 5/16" nylon

Are you sure your 1999 doesn't have a clip style fuel line connector, has a clip you pull out to disconnect fitting, slide in tool won't work on theses

Looks like this one: https://www.dormanproducts.com/p-8562-800-055.aspx

 

I was under the truck last week looking for the fuel filter. I did not pay particular attention to the type of lines and they were dirty and dusty. They may well be nylon and not steel. My truck is a Mazda, in case that makes a difference.

My filter is a two port type, one in and one out.

The clip type sample you linked to is similar to the return line at the pump, but the pressure line is the slide-in tool release type. The two quick connectors on the filter are also slide in.

The photo shows the two connectors at the pump.

 

The metal line is for EVAP system

The Plastic fitting is for fuel and it is a clip on, so push the two white fingers down, fitting is just on upside down, so it you can spin it around you would see the tab you lift up on to pull out the clip/two fingers
Thats why it would come off using the push in tools

The "rubber" line is just on there to protect the nylon hose from abrasion

 

I am just a little confused. In the photo below we can see the lines in the new pump. The pump outlet line is on the right, which corresponds to the line with the metal connector on the right in the first photo. The EVAP appears to be the line on the left - yes it releases very easily by removing the clip, and yes it is upside down. Either way, both connectors have to release in order to get the old pump out.

 

Yes, you are correct, I would think it would be the other way around