Bad vacuum pump?

[rogerzr1]

I took the z out for a short run this afternoon. Everything was great untill I stopped to top off the tank. When I got back in the car and turned the key there was no vacuum pump sound. The car cranked and I drove it home but the secondaries were not working. Now at home when I turn the key on the pump cycles for less than a second and shuts down. Please help.
Thanks, Roger.