Hi Katiegreen. Welcome to the world of VW. Fuel supply problems can be real torture. First, is your car a carbureted or fuel injected car? I'm personally not up on fuel injection so I cannot comment on any problems which are special to fuelies. Common problems are a buildup of crud in the bottom of the tank, fuel lines and fuel pump filtres. A lot of VW's will also have add-on fuel filtres between the fuel pump and the carb. Watch for fuel line kinks where the fuel line leaves the tank. You should be able to disconnect the line from the fuel pump and freely blow air through to the tank. The additional weight of another gallon of gas may be enough to free a kink and allow a flow of fuel. A valid test would be to replicate the problem. Let the car conk out but have a few tools with you. When it stops, before you add more fuel disconnect the line from the fuel pump to the carb, lean it well away from the car and into a container which can catch the fuel. Crank it over. Do you see spurts of fuel coming from the line? If no - then trace the line back to see where you are losing your supply. If you do have fuel, you may have an ignition problem of an intermittent nature. Allowing the car to cool off ( while you add fuel ) may allow the problem to temporarily resolve itself. Test for spark by sticking a screwdriver up a sparkplug boot and then bringing the screwdriver near ground on the engine while someone cranks the engine. ( don't ground yourself at the same time! ) Do the whole process of elimination routine to trouble shoot the problem. Draining and cleaning the tank should always be considered. Tank removal is not too difficult. There are shops which specialize in this sort of work. Good luck with the project. Let us know how it turns out. Dan ( MY72BUG ) in Goderich, Ont.
I'd rather have a partial bottle in front of me than a partial frontal lobotomy.