The slow filling problem I had with my new Hyundai i30 petrol car was caused by the non standard nozzles on the pumps at my local Sainsburys filling station. Petrol nozzles should be 21mm in diameter at the end & since 1 Jan 2010 all stations dispensing 1.25 million litres of petrol or more per year should meet stage 2 vapour recovery requirements.
The end of the nozzle passes through what is actually a 22mm dia hole at the bottom of the upper filler tube & pushes the flap valve open. The outer tube of the pump nozzle then fits in the upper filler tube & petrol fumes are withdrawn via the holes in the side of the upper filler tube.
The Hyundai dealer uses this filling station but was unaware of the cause of the problem.

 

When diagnosing the slow fuel fill problem, do I have to drop the whole fuel tank, or can I get to the components ( separators, canisters ) from below the car?

 

Thanks so much for the information! I drive a 2002 XG350L and it has been difficult to fuel for the last four fill-ups. My mechanic removed the tank, diagnosed the issue as a clogged charcoal canister, charged me $500 and declared it fixed. It's not fixed, the problem is now worse. I have printed out your info and will present my mechanic with my automobile and your advice as soon as possible! Thanks again!

 

I believe that around that time all filling stations were required to meet the vapour recovery requirements & that particular station had not had all the modifications carried out. In the UK all petrol pump filling nozzles are now of a diameter which allows them to pass through the i30 flap valve opening as intended. A few weeks after my initial problem I filled the tank at another Sainsbury's filling station with no problems at all.

 

Hey All,

2001 Sonata GLS V6

The car has problems starting only right after putting gas in it.

I want to replace the Purge Control Valve myself, but I have little mechanic skills. I registered on HMAService but cannot find any instructions.

Does anyone have an directions on how to replace this yourself, and where it is located under the hood?

Thanks!

 

Thread merged.

Read above.

 

Thanks, one more question:

Is the 01 Valve a straight or elbow? That is what the person at Oreileys asked

 

One other important item that my mechanic told me about: the most common cause of this problem (not due to mechanical or electronic failure of parts or components) is TOPPING OFF YOUR TANK when you fill it up. When you fill up, when the gas cuts off the FIRST TIME, STOP! remove the nozzle and don't put any more gas in. When I do this, the problem goes away. If the currently having this problem, estimate how much gas it will take to fill your tank (or watch the guage as you fill) and fill it NOT QUITE FULL. Do this the next few times you fuel up and the problem will go away (if it's not related to parts failure). It usually only takes a couple of refuels til the problem goes away. Then as long as I stop fueling at the first cutoff, I don't have the problem anymore.

 

I noticed my '05 XG350 doing this when I filled up this weekend. Very frustrating! One thing to add that is sort of related. Isn't there supposed to be a small, round, spring loaded door just where you put the fuel nozzle? Mine has disappeared. Has this happened to anyone else?

 

No, there's not.