I've realized lately on my 1978 98 that while the windshield wipers work great, the pump doesn't do anything. You can't even feel the piston doing anything when the pump button is depressed, although the windshield wipers turn on just like they should. I've been trying to find a replacement, but all I've seen has been either these weird electric ones with clearly different wiring setups, or reproductions like this that are for cars without intermittent wipers. Has anyone else encountered this? Or is there someone, hopefully in the Pacific NW area who can rebuild them?