How do you drain the gas tank on a Volvo v70?
Find the top of the fuel pump somewhere in the boot or under the back seat, cut and strip the wires and hook them up to a car battery with jump leads. The fuel pump will whizz away and empty the contents of the tank for you until the tank is dry.
Why would gas come back out when I fill up?
The fuel vent hose on the fuel filler neck is plugged and not allowing the fuel to vent as the tank is filled up. Over time, fuel vapors with debris in them will plug up the vent tube and cause it to not vent the fuel tank. This will make the fuel system not fuel up under a heavy load.
Can a blocked gas vent be a problem?
by James Roberts. A blocked vent pipe to the car’s gas tank can be a real problem. Most people are not even aware such a problem can occur or what it might lead to. A car’s fuel tank is much more than a tank with a fuel hose leading to it. Modern vehicles have a vent hose that is part of the fuel system.
What to use to unstop gas tank vent?
If it seems it might be clogged, use compressed air to thoroughly blow out the line. A can of compressed air, like the air cans used to blow around computer keyboards, will often do the trick — if a long piece of plastic tubing can be engineered instead of the short stick-hose they typically have.
Can a blocked vent pipe cause a car to run?
A blocked vent pipe to the car’s gas tank can be a real problem. Most people are not even aware such a problem can occur or what it might lead to. A car’s fuel tank is much more than a tank with a fuel hose leading to it. Modern vehicles have a vent hose that is part of the fuel system.
What causes gas to come out of the vent?
If fuel becomes trapped in the line your tank will then build pressure or vacuum until there is enough pressure to purge the vent which will cause gas and/or odor to come from the vent line. If enough pressure builds up damage could be caused to your tank.