XJS been stored for a couple of years

Hi try to make this short vehicle not used for a while. Replaced fuel with fresh checked oil water etc. When I turn the ignition on both fuel pump relay and main relay make a clicking noise. The pump (its external on theses cars) just makes a single thud noise and thats it car turns over does not fire. If I grab the pump when ignition is turned on you can feel the thud. Is the my pump gone. Thanks