2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums banner

1 - 13 of 13 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter #1
Hi, I have the following problem, anyone recognize this?

from the beginning that I have my 2015 Mazda 3, I get when refueling, when the tank is full, some gas coming out of the filler neck. The gasoline comes with a wave out. It seems that the tank does not stop in time.

some findings
- Various petrol pumps have it
- Rotating nozzle some is not working
- Nozzle halfway down does not work
- Nozzle does not get anything out
- Dealer new tank filler neck and placed under the car, no effect
 

·
Registered
Joined
·
72 Posts
Is it possible to slow the flow by reducing pull on pump handle? In US, there are latches on handle, the first notch, slow flow works. I am a good estimator, based on prior gauge reading, and fill amounts. When filling I start with full depress, then reduce flow for last gallon.
Your pump handle looks different, so not sure they have auto shutoff. Once they shut off, no topping is done, to avoid over fill and kickback.
 

·
Registered
Joined
·
13 Posts
Discussion Starter #4
There is an auto shutoff, but it's to late. And different pump station have the same problem with overfil. I tried to slow it by pull it half, but same effect.
 

·
Registered
Joined
·
692 Posts
Most vehicles I've read about with such a problems seem to have a problem with the fuel tank venting system.

I suspect your car's vent is somehow crimped or blocked off, thus not allowing the air bubble to dissipate and causing the fuel to backflow when the tank gets filled.

On the other hand, the dealer should have been able to correct it with the new stuff they added on. I'd have them take another stab at it. Tell them you're afraid of starting a fire with the way it is.
 

·
Registered
Joined
·
185 Posts
I can't say I've ever ran into this issue, is it possible that the fuel pump nozzle is not full placed inside the filler neck?
In the video it looks like the pump is missing it's usual guard but my experience without still has the nozzle placed far into the neck, usually with the plastic portion on top of the nozzle only an inch or so out if that.
 

·
Working Class Hero
Joined
·
3,625 Posts
Honestly, for myself, I never put the nozzle all the way in and never pull the handle all the way. I've had other cars simply not accept fuel with the nozzle all the way in, almost as if the pressure escaping the filler was shutting the pump off. So I let it flow as slow as allowed with the nozzle mostly out. Works well, but takes a little longer.

Sent from a Samsung that doesn't explode.
 

·
Registered
Joined
·
28 Posts
Honestly, for myself, I never put the nozzle all the way in and never pull the handle all the way. I've had other cars simply not accept fuel with the nozzle all the way in, almost as if the pressure escaping the filler was shutting the pump off. So I let it flow as slow as allowed with the nozzle mostly out. Works well, but takes a little longer.

Sent from a Samsung that doesn't explode.
Interesting. Different countries, different brands (stations), different fuel pumps, different techniques needed? I've found that with the 3 I have to stick the pump in as far as it will go, pump at full tilt, then stop pumping as soon as the pump shuts off. Being a cheap bastige, the technique I used on my last car was to pump at full speed until nearly full, go slowly until the pumped clicked off, then pull the pump out a bit and fill some more and repeat until I was sure fuel was near the top of the filler neck. I did this since I was usually filling at the least expensive station I could find (see earlier cheap bastige comment). I tried that with the 3 when I first got it and it overflowed--a lot.
 
1 - 13 of 13 Posts
Top