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Use fuel pump to empty gas tank?


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9 replies to this topic

#1 brus brother

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Posted 10 June 2008 - 07:02 AM

I am about to junk a car with a full tank of gas. Can I turn the key to the start position and drain the fuel as it comes out from the fuel filter? Any tips or tricks?

#2 davebugs

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Posted 10 June 2008 - 07:04 AM

Get an air drill and drill a hole on both sides of the tank - one side at a time.

The pump(s) will never get it all out.

Dave

#3 backwoodsboy

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Posted 10 June 2008 - 07:08 AM

Punching or drilling holes is one way to do it.

I have personally used the stock pump to evacuate fuel from cars that were "on the way out" You have to get down to the pump wires in the back of the car.... and wire them straight to 12V (the key wont do it)

I have found that less than a gallon is left when using this method.

#4 brus brother

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Posted 10 June 2008 - 07:14 AM

Insurance is taking the car for "total" so I guess the best way is to hotwire the pump.

#5 OB99W

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Posted 10 June 2008 - 07:22 AM

I assume that you want to use the gas in another car. However, there may be "crud" and water near the bottom of the tank. The filter will remove most particles, but won't help with water. If you've been running gas with some ethanol in it, any water may not have separated, but just pay attention to what comes out as you approach the last of the gas.

#6 grossgary

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Posted 10 June 2008 - 07:57 AM

12 volts straight to the pump. you can use the outlet from the fuel filter that way it's filtered.

are EJ's in-tank pumps? on XT6 pumps i've pulled the hose prior to the pump and had tons of gas gush out on it's own, just due to gravity. not sure if it would have emptied the tank, i haven't "wanted" that to happen when it did!

older generation cars have a "diagnostic mode" that you can enter just by plugging two green connectors together in the trunk. in this state the ECU cycles the fuel pump on for two seconds every two seconds....something like that. on....off....on....off. put the fuel filter hose into a gas can and you're golden.

i don't think you can do that with the new ones though.

#7 backwoodsboy

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Posted 10 June 2008 - 08:15 AM

Yeah, the EJs are all in-tank. :-\

Just snip the power wires and hook em up!

EDIT : For the sake of clarity.. what make/model/year are we talking about?

#8 brus brother

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Posted 10 June 2008 - 01:16 PM

Yeah, the EJs are all in-tank. :-\

Just snip the power wires and hook em up!

EDIT : For the sake of clarity.. what make/model/year are we talking about?


2000 Legacy

#9 backwoodsboy

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Posted 10 June 2008 - 01:24 PM

pump = in tank

(get to the wires through the access hole in the floor)

#10 BoostedBalls

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Posted 10 June 2008 - 04:35 PM

I think I remember seeing a drain plug on the botton of my 91SS, or it was on my wifes 97GT. I don't remember which...




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