Hi,

Before i go all in, i would like a sanity check on our 99 XJ8.
Car would not run one day, it would start and idle very rough and die when the gas pedal was pushed, and was towed home.
There is no pressure on the fuel rail.
I swapped fuel pump relay and one other and cranked the engine, no pressure.
I jumpered the fuel pump relay and cranked the engine, no pressure,, and if i depress the schrader valve, no fuel spray. i measured ~12V at the pump plug, so it should be getting power.

So everything i see points to the pump failing.

Anything else it could be? Fuel filter fully clogged? Regulator failure?

Thanks for any pointers, new pump and filter are on the way, and i have the pdf from avt007.

 

Probably fuel pump. Get denso fuel pump I'm using Delphi not bad .

 

Could be a clogged fuel filter, but most likely the fuel pump.

The fuel filter is a lot easier to change than the fuel pump, but you will probably end up doing both of them anyway.

 

I plan on changing the filter first, just in case, but i am not holding my breath.
And it is the Denso pump on order.

 

.

 

we’re living in some pretty hard times. for your sanity i think it’s best you get the dremel out and do the thing the jag engineers should’ve done in the first place.

 

New fuel filter made no difference. Will pull the tank while i wait on the pump to arrive tomorrow.

 

I'm sure you are already aware, but be sure to disconnect those hard-to-get-to fuel tank lines before trying to remove the fuel tank.

 

Well @ least you have piece of mind that the FF's done going forward, godspeed.

 

I disconnected the parking brake line.That gave me enough room to get to the right (USA passenger) side connector, After thinking about it and wiggling the line, i removed it.
Problem now, it is leaking fuel. I tried to get a hose into the tank to drain it, but i could not get it past the weld from the filler neck to the tank.

Is there a trick for that?

 

There should be a ROLLOVER valve in the filler neck to prevent you from siphoning the fuel.

 

So, no way to drain the tank then?

 

I just pull the tank out on plywood or boards across the top of the spare enough to pull the top EVAP flange and drop a siphon or electric pump into the tank and get the fuel into another container.

 

If you have a 99’ and the fuel is under a half tank full, what you could do is jack the back end of the car up about a foot, unscrew the cover for the fuel tank sending unit (facing license plate on trunk lid) that has 2 wires going to it and siphon it out that way. BE CAREFUL!

 

The tank is about 1/4 full. After i disconnect the supply line from the tank I think i will pull it out, roll the tank rearward, that should stop the flow out the return line.Then i can siphon out what is in there.
Yesterday i tried to pull the supply line, but like the return line, the disconnect tool is hard to get in there.

thanks for all the help.

 

Tank out, new pump installed.
Question now for the experts, do I need the foam seal that goes around the fuel line connections? There was not one there when I pulled it out. The PO had the tank replaced a few years ago, and I am guessing the shop forgot to put the foam pad back in.

 

The foam pad is not required but it will help keep 'critters' and wind/water from the boot area.

Even cutting an old sponge with a hole in it and spray-glue into place will be better than nothing.

bob

 

Okay, i cut a sponge,and glued it to the tank, it looks so ghetto...... tank is in. I will have to wait for tomorrow to get enough strength to push the fuel lines into the tank.

Some notes for anyone who follows:
I read the write up by avt007, which helped a lot. Mine is a 99 NA so there is only one pump to fish out, and i did this on stands lying on the ground. The rear wheels are about 5 inches off the ground with a wood 4x4 under them.
The drain line from the filler in my car went through a foam block between the trunk and the lower pan, i doubt i will be able to get it back, so that will be lost forever.
I did not have to remove the trunk lid supports, but be careful pulling the tank out, there is wiring on the right side that the tank flanges will catch. Dont force it out, if it is not moving it is probably caught on something.
i disconnected the handbrake cable first, then started to remove the driveshaft bolts. I stopped after one and found i could reach up to the fuel line fitting with the driveshaft in place so did not remove the driveshaft.
I was successful pushing the tool in by pushing first with one finger on either side of the gap then pushing from there around to the other side.
My tank has the blue plastic top with three hoses. After removing the clamping ring, i pulled the small hose off the metal pipe, that gave enough slack to pull the two that are parallel of the pipes. When you tighten if back up, there is a half moon key in the lid that matches one on the tank. Make sure that is aligned, as you tighten the ring, the lid can slip and will ride up over the key in the tank. That will result in a bad seal......

 

We have ignition, now i have to button everything back up.
A question for routing the wiring harness. After it passes through/around the filler neck, there is a plastic barbed holder in the vicinity of the fuel lid latch.
What hole is that barb supposed to go into? The people before me failed to attach it. Anyone have a pic of that area?

Thanks!