Fuel Spillage - Toyota Yaris Forums

yours_falsely · 05-30-2012, 08:13 PM

I have the strangest issue. Whenever I go to fill up my tank, the moment the pump clicks and stops the flow, a bit of fuel spills out. I HATE it. I can't figure out why it's happening and Toyota is of no help. I cringe everytime my precious fuel is wasted. Any ideas as to why this may be happening?

Note: I don't top off my tank. This happens when filling up from any level.

Thanks

edmscan · 05-30-2012, 08:40 PM

Hmmm .. cannot say that I have had this problem with my Yaris, but I will admit that it is something I am scared of. I always stop putting in gas in the tank when the gas pump stops by itself.

yours_falsely · 05-30-2012, 09:19 PM

I do as well. But when the gas pump stops, it seems it may be too late because that's when it spills.

CTScott · 05-30-2012, 09:44 PM

It sounds like the refueling valve is plugged or sticking. It is a valve on the top of the charcoal canister that closes when the tank it full to prevent fuel from entering the canister. If it is closed while fueling the air has to escape though a tiny (2mm) orifice. That creates the same effect as filling a bottle directly against a faucet where, when it is close to full, water sprays out as the air can't escape fast enough and compresses.

Name: Fuel Tank Diagram.jpg
Views: 272
Size: 104.9 KB

Name: Fuel Tank Diagram.jpg
Views: 272
Size: 104.9 KB

yours_falsely · 05-31-2012, 12:38 AM

How would I go about fixing it? It seems pretty invasive. Would I be better off leaving it alone?

CTScott · 05-31-2012, 06:45 AM

Quote:

Originally Posted by yours_falsely

How would I go about fixing it? It seems pretty invasive. Would I be better off leaving it alone?

It's a fairly easy thing to check out, since the canister is mounted behind the gas tank an is readily accessible. It's just a matter of disconnecting the valve and blowing through it.

yours_falsely · 05-31-2012, 08:44 PM

How would I access the canister?

CTScott · 05-31-2012, 09:23 PM

Quote:

Originally Posted by yours_falsely

How would I access the canister?

Just stick your head under the back bumper on the driver's side and you'll see it sitting there.

ruslanus · 09-16-2013, 09:06 PM

My 2012 has the same problem, every time I fill up, the pump shuts off when full and a small amount gets spewn out of the filler tube on the ground. I will be checking it out today after I get home.

05-30-2012, 08:13 PM	#1
yours_falsely View User's Garage Drives: 2008 Yaris sedan Join Date: Jul 2011 Location: Indiana Posts: 77	Fuel Spillage I have the strangest issue. Whenever I go to fill up my tank, the moment the pump clicks and stops the flow, a bit of fuel spills out. I HATE it. I can't figure out why it's happening and Toyota is of no help. I cringe everytime my precious fuel is wasted. Any ideas as to why this may be happening? Note: I don't top off my tank. This happens when filling up from any level. Thanks

05-30-2012, 09:44 PM	#4
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	It sounds like the refueling valve is plugged or sticking. It is a valve on the top of the charcoal canister that closes when the tank it full to prevent fuel from entering the canister. If it is closed while fueling the air has to escape though a tiny (2mm) orifice. That creates the same effect as filling a bottle directly against a faucet where, when it is close to full, water sprays out as the air can't escape fast enough and compresses. __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
The Nitrous Thread	ChinoCharles	Performance Modifications	116	02-16-2016 03:07 PM
Yaris Fuel Pump	HTM Yaris	General Yaris / Vitz Discussion	12	03-22-2012 03:34 AM
"5 Driving Myths That Cost You Money"	PETERPOOP	Fuel Economy Forum	10	05-24-2011 10:20 PM
NEED ENGINE CHECK LIGHT CODE LIST	Attitude	Forced Induction Forum	12	04-11-2011 06:38 PM

05-30-2012, 08:40 PM	#2
edmscan Drives: 2020 Corolla Join Date: Apr 2012 Location: Canada Posts: 549	Hmmm .. cannot say that I have had this problem with my Yaris, but I will admit that it is something I am scared of. I always stop putting in gas in the tank when the gas pump stops by itself.

05-30-2012, 09:19 PM	#3
yours_falsely View User's Garage Drives: 2008 Yaris sedan Join Date: Jul 2011 Location: Indiana Posts: 77	I do as well. But when the gas pump stops, it seems it may be too late because that's when it spills.

05-31-2012, 12:38 AM	#5
yours_falsely View User's Garage Drives: 2008 Yaris sedan Join Date: Jul 2011 Location: Indiana Posts: 77	How would I go about fixing it? It seems pretty invasive. Would I be better off leaving it alone?

05-31-2012, 08:44 PM	#7
yours_falsely View User's Garage Drives: 2008 Yaris sedan Join Date: Jul 2011 Location: Indiana Posts: 77	How would I access the canister?

09-16-2013, 09:06 PM	#9
ruslanus Drives: 2012 Yaris Join Date: Aug 2013 Location: Wasilla, AK Posts: 3	My 2012 has the same problem, every time I fill up, the pump shuts off when full and a small amount gets spewn out of the filler tube on the ground. I will be checking it out today after I get home.