Here is the deal, I drained out all my old cruddy gas (out the drain plug)and put back in 3 new gallons. Now I'm not getting any gas the through the filter. I pulled the gas line off just below the filter and expected gas to come out, nothing. Got in and turned the ignition on and still nothing. I can't even hear he gas pump pumping. What should I try next? relay? If so how do you check it? Thanks.