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94 F150 Can't fill gas tank

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Old 06-09-2014, 11:06 AM   #1
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Default 94 F150 Can't fill gas tank

Hi,

I apparently have a venting problem with my 94 F150 short bed. It just has one tank, but I have to put gas in very slowly or it just shuts the pump off.

Do I have to drop the tank to fix this? Also the gas mileage is about 9 mpg which seems low even for this truck. I have replaced the plugs, O2 sensor and had an overall tuneup. Would the venting problem effect fuel mileage?

Thanks.
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Old 06-12-2014, 10:32 PM   #2
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Just giving this a bump.
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Old 06-12-2014, 10:52 PM   #3
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Tried just pulling the pump out until it is barely in there?

Nothing new I haven't heard before with numerous vehicles.
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Old 06-13-2014, 08:19 AM   #4
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Originally Posted by thallendorff View Post
Tried just pulling the pump out until it is barely in there?

Nothing new I haven't heard before with numerous vehicles.
Yes this does help, but shouldn't I fix this? If it is just effecting gas pumping it's not a big deal, but can this affect mpg somehow?
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Old 06-13-2014, 08:49 AM   #5
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Depends on the pump too. There is a shell station in my home town and their pumps act like that on both my truck and my beater. You have to hold the nozzle a certain way and go slow at first. Its the only station I've been too that does this.
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Old 06-13-2014, 03:12 PM   #6
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Depends on the pump too. There is a shell station in my home town and their pumps act like that on both my truck and my beater. You have to hold the nozzle a certain way and go slow at first. Its the only station I've been too that does this.
This happens at all pumps. Sometimes I can just barely let it trickle in.
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Old 06-13-2014, 06:21 PM   #7
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It's a venting problem.
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Old 06-13-2014, 08:38 PM   #8
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It's a venting problem.
So do you have any advice on how to fix this problem? Does the tank have to be dropped? Thanks.
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Old 06-13-2014, 08:43 PM   #9
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No you don't have to drop the tank. It's something with the filler neck. It's a hose in a hose, for venting.
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Old 06-14-2014, 09:45 AM   #10
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No you don't have to drop the tank. It's something with the filler neck. It's a hose in a hose, for venting.
Excellent thank you. That helps a lot.
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