thanks, Ldub, for your prompt and helpful response. Unfortunately, BOTH Autozone and Pep Boys were out of the pump, so I'll have to wait a few days to try this. I'll let you know how it goes.

On the plus side, due to info I got from here in the forums, I saved myself the labor charge of replacing the serpentine belt and greasing my U-joints, so at least I got something accomplished today.