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Cant fill my gas tank

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Earthglyder
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Joined: Fri Jun 28, 2019 7:08 am
Year and Model: 2007 V70
Location: MA

Cant fill my gas tank

Post by Earthglyder »

'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.
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oragex
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Re: Cant fill my gas tank

Post by oragex »

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
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kranz
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Re: Cant fill my gas tank

Post by kranz »

Earthglyder wrote: Fri Jun 28, 2019 7:41 am '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.
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MDK
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Re: Cant fill my gas tank

Post by MDK »

The vent is clogged or the charcoal canister is saturated...or both
Georgeandkira
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Re: Cant fill my gas tank

Post by Georgeandkira »

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.
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vtl
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Re: Cant fill my gas tank

Post by vtl »

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.
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
MDK
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Re: Cant fill my gas tank

Post by MDK »

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
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vtl
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Re: Cant fill my gas tank

Post by vtl »

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

Image
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
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kranz
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Re: Cant fill my gas tank

Post by kranz »

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
3d27fb57-6244-452d-8cef-092affd723ad.jpg (15.4 KiB) Viewed 316 times
s-l1000.jpg
s-l1000.jpg (43.74 KiB) Viewed 316 times
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Georgeandkira
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Re: Cant fill my gas tank

Post by Georgeandkira »

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!
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