During my last two fill ups on my 2010 Jaguar XK with 12,500 miles, the gas pump continually clicks off way too early. If I try manually, changing the angles, or pulling it further out or further in, makes no difference... Can anyone shed any light on my annoying dilemma? Thanks all.

 

Your EVAP canister is plugged up. Since 'plugged', it prevents your fuel tank from venting vapors which take up space while refueling, therefore backing up the filler neck and triggering the fuel filler pump to stop.
Quite a pain, as the canister in at the tank, if I remember right.
There is another fairly recent post about this, maybe do a search for it.

 

Are we talking about the the charcoal cannister?

 

That's the monster. I had to change one on my old F250 years ago, it'd take literally fifteen minutes to fill the 6 gallon tank. I replaced the charcoal canister and had zero problems after that.
This is one of the threads, but there are others........

https://www.jaguarforums.com/forum/x...hutoff-240436/

 

I posted about this earlier. Unfortunately, I haven't had a chance to investigate or try any suggestions yet.....

https://www.jaguarforums.com/forum/x...hutoff-240436/

 

Sounds like a nightmare.....Next time I fill up I'll try another station. It's possible the last two times I filled up was the very same pump and the very same station. To be continued.

 

I wonder if overfilling leads to a clogged canister?? I’ve not had this issue but I stop the filling the moment the handle ‘clicks’.
Or non premium fuel??

 

This happened to me once at a station that I rarely went to. So after going to another station I did not have the problem. I would try a different pump before I get concerned about replacing any parts

 

i think usually it's just from the car breathing too much dust. if an EVAP canister was already dirty and was then flooded with fuel, i guess that could cause all that crud to settle, but the hoses typically come in from the top. and it's feasible that the filter media could come apart since gasoline is a solvent, but, it's meant to breathe fuel vapor already. a good quality one ought not have that problem either.

 

Yes overfilling is a definite cause.

 

I seem to have this problem only at certain stations and never at others. I believe that different nozzle heads from those certain stations are more sensitve to back pressure and therefore turn off much more easily. There is a USA Gas station near my office building where I often fill up, and it always happens at their pumps (even at different uSA Gas locations). But it never happens at my local Shell or Chevron station or any of their locations. So, I believe the problem is related to the kind of nozzle the station uses.

 

I have had it happen with certain pumps. I always thought the fuel flow was too fast or undr too much pressure causing a backup. Now I avoid the pumps where I have run to the problem before/

 

I have run into this issue twice, both times during long drives when I had just pulled off of the interstate to refuel. I can't say whether it was the car or the pump nozzle, but this is an issue I am keeping an eye on.

 

Was this ever resolved?

I'm having the same issue and trying different stations and nozzle depths/positions does not fix it... Agree that it's a venting issue, but I don't see any threads that detail an exact diagnosis and fix to the issue.

There's one instance of @Cee Jay replacing his evap canister, but but much more available on concurrence to that fix.

Maybe I'm just bad at searching, haha. I've attached some relevant pages from the service manual... It makes me wonder if one of the "vapor pipes" is clogged.

Is there a diagnostic procedure for all this?

 

I do seem to recall one person a few years ago had to drop his fuel tank to replace his canister. I also believe the replacement fixed the problem.

 

It has been a long time since I had to fill the tank very slowly until a few months ago I decided to solve the problem.
I was checking all the gas return hoses and I checked that the canister was correct so I lifted the car to inspect the filler pipe and I saw that it is attached to the body with screws until I reached a rubber hose that connects to the tank. I saw clearly that the fuel filler tube was sloping and I doubled the clamping of the tube to the body to get a slope until it connected with the rubber hose. Since I modify this slope of the full tube the tank at the same gas station at maximum flow until the tank is completely full and it has not bothered me again

 

Well, my trick of letting the fuel run out until it's less than 15 miles to empty has finally stopped working. It worked for the 3 or 4 times the fueling issue occured over the past 2 years, but a month ago the issue returned and I've tried to run out the tank twice to remedy it, without luck.

I think the next step is to drop the tank and replace the charcoal canister. Bummer.

 

DO NOT run the tank near empty! You are putting the longevity of your fuel pump in jeopardy! The pump is cooled by the fuel around it…continually running the tank to near empty is a major element in fuel pump failure.

 

Yes, I am aware of that. Thank you for the warning.

Unfortunately, running the tank to empty is the only method that allowed fuel to be added without the station pump stopping every 0.3 gallons because fuel backs up the filler neck and triggers the nozzle shutoff. So, the options are to either run the tank to empty so it resumes venting properly and fuel can be added without issue, or spend 20 minutes at the pump every time I need to refuel.

This fix would let fuel be added "normally" for months without any problems... I just had to be sure to get to a station before it dropped below 1/4 tank. So, whenever this issue reappears, I chose to keep my sanity and run out the fuel to reopen the vent, despite the risk to the vehicle's fuel pump.

That worked for the handful of times it happened, until recently. That fix is no longer working, despite being a solution for 2 full years. My luck has apparently run out, and it's time to drop the entire rear drivetrain to access the tank.

 

maybe try that hose fix in post #16 above??