... Now to figure out why the sprayer pumps all the time when I turn on the whipers
https://youtu.be/0SS-11bTM34
I took a video of mine, above, when was trying to understand why it wouldn't pump.
The silver metal part toward the top of the frame has a "finger" that rides on the top of the rotating plastic part. When that finger is on top of the rotating plastic part, the silver metal part keeps the pump arm disengaged.
When you twist the control to engage the washer pump, an electromagnet energizes and lifts the silver metal part toward the top of the frame. In the video, every time the silver metal part rises toward the top of the frame, I'm twisting the control to energize the electromagnet. Sometimes I held the switch on for a while.
When the silver finger is not riding on the top of the rotating plastic part, this enables the the pump arm pawl to engage the ratchet teeth on the round rotating part, pumping fluid. When the electromagnet is energized, it holds the silver part out of the way and the pump pumps. If the electromagnet releases, the finger drops and rides a cam on the round rotating plastic part. That cam eventually lifts the finger on that silver metal part up to the top of the round rotating part, disengaging the pump arm pawl from the ratchet teeth. The arm then stays disengaged until you energize the electromagnet again, lifting the silver part again and starting the process over.
If you're always pumping, that silver metal part probably isn't disengaging the pump arm. Perhaps one of the springs involved has failed. A reman from AutoZone goes for short money.
My problem was dried out rubber seals in the pump. New seals and I was all set.
