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If the pump is working without the relay, but hooking it to the relay makes it not work, I do suspect a bad relay. You have it wired right, but that doesn't mean that you are getting a good switched power or ground. Get your multimeter and test the switched connection you're using. Test it at the point you're connecting to the relay. Ignition on should read ~12V. Have your doors closed, lights off just to make sure it's ignition switched, not light switched.
2002 F250 CCSB 4x4
PHP Phoenix, John Woods VB, NUC bypass, 6637
"No country can be called free which is governed by an absolute power;
and it matters not whether it be an absolute royal power or an absolute
legislative power, as the consequences will be the same to the people."
--Thomas Paine, Four Letters on Interesting Subjects, 1776