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How do you drain the fuel tank?

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Old 04-25-2009, 06:49 PM
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How do you drain the fuel tank?

Might be a stupid question but how do you drain the fuel tank? I tried syphon but the hose stops before making it to the tank, I even tried some very small 1/4 inch hose nad it never makes to to the tank. Can I just disconnect fuel line from filter, turn the car on and run a line into a can? will the fuel pump turn on or does something need jumped somewhere?
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Old 04-25-2009, 08:22 PM
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Originally Posted by Governor
Might be a stupid question but how do you drain the fuel tank? I tried syphon but the hose stops before making it to the tank, I even tried some very small 1/4 inch hose nad it never makes to to the tank. Can I just disconnect fuel line from filter, turn the car on and run a line into a can? will the fuel pump turn on or does something need jumped somewhere?
pop out the fuel pump and siphon directly from there.
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Old 04-25-2009, 10:01 PM
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connect a hose to the outlet side of the fuel filter and put the other end in a bucket and turn on the ignition and let the fuel pump drain your tank!
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Old 04-25-2009, 10:12 PM
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Originally Posted by CMax03
connect a hose to the outlet side of the fuel filter and put the other end in a bucket and turn on the ignition and let the fuel pump drain your tank!
gotta keep the pump running tho. additionally i have heard that running a fuel pump dry (draining the tank or otherwise) is bad for it.

Last edited by CapedCadaver; 04-25-2009 at 10:16 PM.
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Old 04-26-2009, 12:09 AM
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FPR outlet nipple > remove return hose to tank > new hose > bucket > start car and let idle ............... when engine dies tank is empty - QED
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Old 04-26-2009, 09:58 AM
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why are you takign the gas out?? either the car doesnt run anymore or it has bad gas, you wouldnt want to runt hat through the motor till it cuts off....?
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Old 04-26-2009, 11:01 AM
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Maybe he's hardcore - and he's replacing the gas tank.
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Old 04-26-2009, 11:06 AM
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Originally Posted by 1991Maxima1991
why are you takign the gas out?? either the car doesnt run anymore or it has bad gas, you wouldnt want to runt hat through the motor till it cuts off....?
Wrecked and I am junking it and want that 1/2 tank of gas. Fuel pump only stays on for about ten seconds with motor off.
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Old 04-26-2009, 11:11 AM
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yeah.. the ECU shuts off the fuel pump after a few seconds when it's not running.

Last time I had to drain the tank, I just took at 12V jump starter battery and hooked the pump to +12V so it ran all the time. then disconnect the incoming line from the fuel filter and run it to a gas can.
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Old 05-05-2009, 02:45 PM
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Originally Posted by striker0204
it is, cuz it has to struggle to syphon the air instead of gas. when it gets low, the pump works harder. never let your car get below a 1/4 tank
ummm not exactly...
the gas actually cools the pump motor of the pump. you run it that low it'll over heat or cause damage to the pump.

gas tanks have baffles/sumps in them so they don't pump air when you make a turn.
it's ok to run a tank below 1/4 if you know the gas in the tank is clean.
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Old 05-05-2009, 05:42 PM
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Dan, how is it possible i've been running fine for years with the breather pipe coming out of the gas tank disconnected? I just noticed last night. Maybe that was the reason why I failed emissions. Does it basically just go to the carbon canister....and not critical? Oh and, any pending damage if I left it like that?
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Old 05-05-2009, 06:44 PM
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Originally Posted by 1993-VG30E-GXE
Dan, how is it possible i've been running fine for years with the breather pipe coming out of the gas tank disconnected? I just noticed last night. Maybe that was the reason why I failed emissions. Does it basically just go to the carbon canister....and not critical? Oh and, any pending damage if I left it like that?
well it's not critical per se...BUT it won't pass emissions. you're just letting the fumes go out to the air which is no good...i should pass the carbon caniser.

but your car should run normally.
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