Hey guys. I've been having a bit of trouble with my wagon lately, in that it wont fill up over $10 or so. When I go to fill it, even if its empty, I get some serious blow back. I can only squeeze the pump for a few seconds, otherwise it'll come racing back up, and spray everywhere. And if I do fill it up over $10 or so, it'll start leaking from beneath. Anyone got any ideas? I know the wagons do blowback a bit, but its getting worse I reckon. Could it be a breather hose? Any help would be appreciated. Cheers.

Have you ruled out a bung fuel sender? IE: there's petrol in there already but its just giving a faulty reading?
If so, then check the breather for sure.

You should be able to see some of the breather hose through your rear interior trim (assuming it's the same as the coupe).

You might even have an inspection panel in the floor of your wagon that you can open up to er.....inspect the breather tube.

There really is no 'breather' -- there is a vent line which is tiny and doesn't vent much when filling.

More likely your tank either has some fuel in it already, or has a sizeable dent in it and so won't take a full 10 gallons.