Draining the fuel tank on my vectra?

The best way to empty the fuel tank is through the
pump sender unit, This is located under the rear seats which lift up pop off the plastic lid and you have direct access to the tank,remove the securing clasp take off the hoses ( to be on the safe side remove or disconnect the battery at this point ) remove the electrical connections and then remove the pump sender unit,then
empty your tank

Been here,Done it this way ;)
April 2013

disconect the houst from the pump and put it into a tray. this way you will get out the same amount as if you runs out of gas. ( get me right. I am talking about the houst from the tank , to the fuelpump)

pappa
September 2009

the best way is to syphon the fuel out of the filler, if it is fitted with anti - syphon just poke something thin like a wire coat hanger to open the valve then put the pipe or tube in then bluw into the tube and suck till the fuel come s out. IF THAT DOESNT WORK you will just have to put a hole in the bottom of the tank and drain it that way

j
February 2008