You need to spend $10 and buy special tool. There are more than 1 tab!!!!! Spray PB blaster.
PS. I don't know exactly how Jag fuel lines are connected, but most cars need special tool. Post a picture.

 

I'm not 100% sure about the ones on the tank - I assume that is what you are referring to - but I would guess it is one of these :



In which case there are four internal tabs and you need a special tool to disconnect it.

Have you seen this :

JagRepair.com - Jaguar Repair Information Resource

 

I actually used a dremel on a long piece of copper pipe to make a stronger disconnect tool. I tied a rope around each of the two fuel lines. When things would pop, I'd pull on the rope. That worked but you still have to build up a technique.

 

Make sure the connection is clean. Brake cleaner and compressed air or tool won't go in far enough to release.

 

If you damage the 'lock-tabs' they are replaceable as FUEL TANK STUFFER PINS EBC9606.

I don't know if they are still available new. Call a dealer with the part number and inquire if you need one or 2.

bob

 

I used a plastic disconnect set to replace my fuel pumps, but after beating my head against the wall I broke down and got a metal fuel line disconnect tool that does 5/16'' and 3/8''. I bought a combo one for AC lines as well, but sadly, ended up buying the fuel line specific one as listed due to clearance issues. (The other had 4 slots and the "ears" stuck out and got in the way.)

the plastic sets are cheap and seem to give you options, but it would not disconnect my lines for the life of me for the engine bay ones..... Metal tools are good.

-Scott

 

Jasmine, if the photo above is accurate post #3, i want to share a story.

I just went through this changing a friends Ford explorer fuel filter.

The 3 or 4 tabs you xan see on the inside clamp on a raised surface on the neck of the filter. In your case I suppose it is the pump. Once these are released with the tool, and slid back past the raised surface, the line should slide off.

on my job it just stopped in its tracks. Since the surface was smooth I realized(eventually) that the tabs were not part of the problem. The special tool is impotent at this point.

it turned out that there is an o ring shaped item out of sight behind the clips the tool works on. I probably had way more space to work with than you do, even the. I couldn't unfasten the connector by hand.

I went to good old physics and created a lever.
let me explain. First confirm that the clips are no longer faced with anything to latch onto.

then I used a small vice grip to clamp on the filters neck (I will leave it to you to translate filter to pump or whatever) . I left about 1/8 inch space between the top of the vice grip and the frozen co Hector.

imagine for a moment the profile of a long nose pliers. It tapers towards the tip.

this was enough space to fit the end of a long nose pliers between the vice grip and the connector. Of course the pliers was opened to equalize the leverage left right.

Once pliers was snug i levered them using the vice grip as the fulcrum. This resulted in movement leaving a bigger space. I pushed the pliers in again until snug and repeated. This released it.

I never really could tell if it was dirt or corrosion. I did measure that taking 0.1mm off the diameter of the filters neck (used a dremmel) allowed it to move through this o ring area.

long story but awfully similar in several ways. I hope the idea of setting up a lever can apply and help you too.

John

 

somehow this duplicated

 

In these connectors, the pipe has a metal "ridge" which is what keeps it located within the clip - there's also an 'o' ring which makes the fuel-tight seal. If it is easy to get at, then a metal tool like this will do the job quite easily - essentially, it is pushed in beyond those four "lugs" and then provides a smooth surface against which to pull back on the pipe. However, as I understand it (haven't done this job myself), the two connectors for the tank are extremely difficult to access, so a different tool and a bit of ingenuity are required to get them free.

 

This just reinforces the decision I made on my 1997 to cut the parcel shelf for access. I will do the same on my 2006 if needed.

 

RJ I'm going to cut mine too.
David your photo nails it. Exact same situation as the filter I described. But hell need room to lever it.

John