fuel leak when full
02-04-2011, 04:47 PM
#1
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fuel leak when full
After searching for about an hour and a half and not finding anything that is close to my issue I thought I would put it out here and see if anyone can guess the issue with out me having to drop the tank.
My issue is when I fill the tank I am leaking fuel for about the first 20 miles. Now here is the kicker, it only leaks when the truck is off, not running. When I park, I have to wait about 2-3 min. then it will start leaking from the top. It will leak to the pass. side and to the rear of the tank.
When I added about 8 gallons last night, I removed the cap to hear the vacuum suck in air. So it is holding pressure.
The truck starts with no problems, I seem to have no other issues but getting 11MPG.
I just bought it 2 weeks ago so I can't compare it to pre-leak.
I have a 95 3.sl0w V6. It also seems that the fuel lines have been replaced with in the last year or so.
Any suggestions will help. And if I didn't use my super searching skills and the answer is out there, please forgive me (and link the post) Thank you for your time.
My issue is when I fill the tank I am leaking fuel for about the first 20 miles. Now here is the kicker, it only leaks when the truck is off, not running. When I park, I have to wait about 2-3 min. then it will start leaking from the top. It will leak to the pass. side and to the rear of the tank.
When I added about 8 gallons last night, I removed the cap to hear the vacuum suck in air. So it is holding pressure.
The truck starts with no problems, I seem to have no other issues but getting 11MPG.
I just bought it 2 weeks ago so I can't compare it to pre-leak.
I have a 95 3.sl0w V6. It also seems that the fuel lines have been replaced with in the last year or so.
Any suggestions will help. And if I didn't use my super searching skills and the answer is out there, please forgive me (and link the post) Thank you for your time.
02-04-2011, 06:18 PM
#2
Registered User
The only way to really know whats going on is to either remove the tank or the bed. I would recommend removing the bed, that way you can run the truck and pin point the leak.
02-04-2011, 11:16 PM
#4
Registered User
02-05-2011, 01:53 AM
#5
You have a crack or pin hole in most likely the return line and the pressure in the tank pushes it out.
Now if this has never been apart good luck .
the fuel pump brackets if you can find one from the southwest you might be able to get away with a used one.
New from the dealer around $180.00 ** but with the dollar being devalued the price might have gone up.
** This price is off the top of my head and could be way off
Now if this has never been apart good luck .
the fuel pump brackets if you can find one from the southwest you might be able to get away with a used one.
New from the dealer around $180.00 ** but with the dollar being devalued the price might have gone up.
** This price is off the top of my head and could be way off
Last edited by wyoming9; 02-05-2011 at 01:55 AM. Reason: typo
02-05-2011, 03:25 AM
#6
Registered User
Either a pin hole leak in the return lines, or a pinhole leak in the pickup on the top of the tank, causing extra air to get pulled through the line... causing a potential lean mixture, and your. 11MPG..
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