Cant fill my gas tank

Earthglyder · Post by **Earthglyder** » 28 Jun 2019, 07:41

'07 V70 140k miles. Pump shuts off while trying to fill the tank. While filling the tank took about 1 gallon then expelled a portion back out onto the ground. Put some absorbent down and tried a 2nd time. Same issue.

Post by **oragex** » 28 Jun 2019, 15:48

From what I remember, this is a blocked vent hose at the tank. This is for an C70 https://forums.swedespeed.com/showthrea ... -Tank-Vent

Post by **kranz** » 28 Jun 2019, 16:24

Earthglyder wrote: 28 Jun 2019, 07:41 '07 V70 140k miles. Pump shuts off while trying to fill the tank. While filling the tank took about 1 gallon then expelled a portion back out onto the ground. Put some absorbent down and tried a 2nd time. Same issue.

I have a 2004 V70 with the same problem. I've found that if I let the car sit for 15-20 minutes, then I can drive a short distance to the gas station and fill it. I poked around in the forum and I think there is a topic on this. IIRC, there is some sort of filter box for the evap system that sits near the tank or the rear axle. I think it may be responsible for this problem. I seem to recall, topping off the fuel tank can cause this thing to fail resulting in this problem. I thought I'd find a replacement at the scrap yard, but I'm not keen to be crawling under a car out there.

MDK · Post by **MDK** » 28 Jun 2019, 20:33

The vent is clogged or the charcoal canister is saturated...or both

Georgeandkira · Post by **Georgeandkira** » 29 Jun 2019, 07:17

I believe the passive thing to do first is to drive the vehicle to get the fuel level down to 1/4 tank.
Under these conditions the EVAP system's purge cycle can have greater chance of clearing itself.

My brother helped me out whilst filling up before hitting the Interstate. He brimmed my tank while I was in the rest room.
The problem cured itself.

Post by **vtl** » 02 Jul 2019, 20:35

In my case it was a spider that has built his web/nest at the vent pipe's outlet. You can crawl under the rear bumper and check if the pipe is clear of obstruction.

MDK · Post by **MDK** » 04 Jul 2019, 17:48

Hey VTL...MDK here. Can you post a pic so we can see where to look. Obviously on yours the nest is gone. But I would like to see what your looking at.... ppreciate ya

Post by **vtl** » 04 Jul 2019, 19:26

I don't have a pic. Nr.45 here:

Post by **kranz** » 05 Jul 2019, 00:14

I found a description of the problem on an S80 that has a photo looking up from the ground towards the filler neck. I took a peek under my 2004 V70 bumper and found that it has the same arrangement.

http://www.fixya.com/cars/t2562789-2002 ... _shuts_off

Here are other photos of the filler neck with the vent tube

: 3d27fb57-6244-452d-8cef-092affd723ad.jpg (15.4 KiB) Viewed 4267 times

: s-l1000.jpg (43.74 KiB) Viewed 4267 times

Georgeandkira · Post by **Georgeandkira** » 05 Jul 2019, 08:30

For everyone's information:

The fitting pointing downward (which the spider homesteaded) has a barb fitting.

It was onto that fitting I shoved a foot of old garden hose so I could blow into it.

I was able to locate the hiss of the escaping air.

It was my bad J-hose.

I demand a medal for that one!