Have any of you ever run into an occasion when the primer pump wouldn't do anything? I have the upgraded primer pump. A little background to my issue; last week I topped off my tank and found out that my WVO filter had failed. Now I have some sediment in my tank which I've been dealing with until I can get up to Farm & Fleet for a new filter. Up until today, I've just had to drain my prefilter every so often and prime the system. Today I did this, but the primer pump wouldn't suck any fuel into the pre-filter. I'm fully aware of the possibility of a clogged tank screen, which I'm going out to check shortly. The thing is, I don't think it's even possible that I got enough sediment in my tank to obstruct the tank screen, so I'm wondering if maybe the problem could be somewhere else. My entire fuel supply line is new and it's highly unlikely that I'm sucking in air anywhere. I did, after an hour of pumping and cranking on the engine get the system primed so I could limp the car home; but it's still starving for fuel.