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Draining Fuel Tank

#1 User is offline   blown_volvo850r Icon

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Posted 11 August 2009 - 04:24 AM

Being that I'm 99.9% sure that my problem is water in the tank, I went to drain the tank tonight with a siphon pump. Never having siphoned fuel, I was unaware that newer cars have siphon blocks or filters that keep a hose from going down into the tank. So, how can I drain the tank? I know some cars have drain plugs, but I didn't see one under mine. Could I possibly unhook the fuel filter, plug a 12V battery up to the fuel pump, and drain it that way? And if the fuel pump is going out, how will I be able to tell?
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Posted 11 August 2009 - 04:28 AM

Add a can of fuel dryer if you think its water. Its a hell of a lot easier than trying to dispose of 15 gallons of petrol. If you have to though you can siphon a 1997 no sweat.
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Posted 11 August 2009 - 06:28 PM

Lee is back!
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Posted 12 August 2009 - 01:53 AM

View PostChe, on 11 August 2009 - 12:28 AM, said:

Add a can of fuel dryer if you think its water. Its a hell of a lot easier than trying to dispose of 15 gallons of petrol. If you have to though you can siphon a 1997 no sweat.



Granted you can get past the roll over valve
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#5 User is offline   blown_volvo850r Icon

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Posted 12 August 2009 - 03:30 AM

View PostChe, on 11 August 2009 - 12:28 AM, said:

Add a can of fuel dryer if you think its water. Its a hell of a lot easier than trying to dispose of 15 gallons of petrol. If you have to though you can siphon a 1997 no sweat.


Already used two bottles of fuel dryer at different times in the past week. Didn't help a bit, nor did changing the fuel filter. Plus, I only have about 4-5 gallons in the tank.
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Posted 12 August 2009 - 03:31 AM

View Postblown_volvo850r, on 11 August 2009 - 10:30 PM, said:

Already used two bottles of fuel dryer at different times in the past week. Didn't help a bit, nor did changing the fuel filter. Plus, I only have about 4-5 gallons in the tank.


Then fill it up with 10 gallons of fresh fuel.
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#7 User is offline   blown_volvo850r Icon

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Posted 13 August 2009 - 01:43 AM

View PostChe, on 11 August 2009 - 11:31 PM, said:

Then fill it up with 10 gallons of fresh fuel.


I'll give it a try. It's worth a shot before I drain the tank.
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