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#1 (permalink) Old 02-06-2012, 08:34 PM
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gas overflow

Hi Guys,
1995 525i,m50.When pumping gas ,the gas overflows even when the tank is quarter full,what may be the problem.help please.

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#2 (permalink) Old 02-07-2012, 06:11 AM
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Do you mean the fuel is spilling back out of the filler neck, or leaking from underneath the car?


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#3 (permalink) Old 02-07-2012, 08:44 AM
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Spilling back out the filler neck.Does not go thro the neck.Have to do it on and off before it goes in.What might be the reason? Thanks.

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#4 (permalink) Old 02-07-2012, 03:08 PM
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That'll either be the "Anti-syphon" in the neck OR most likely the tank breather (Blocked/restricted)...


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#5 (permalink) Old 02-07-2012, 03:59 PM
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Now,how do I take care of that? is it a big job or something I can pour in to clear it?

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#6 (permalink) Old 02-08-2012, 04:59 AM
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It sounds like the air isn't able to flow passed the incoming fuel in the neck. Check if the hose between the tank and the fill point is kinked, crushed or otherwise obstructed.


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#7 (permalink) Old 02-08-2012, 03:39 PM
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As Brett says...
Does it "gush" back at you as though you were trying to "Drown" someone ?!! If yes the it's definately a blocked breather...


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