I removed and cleaned the washer fluid/coolant reservoir. I did notice some washer fluid drained from the line when this happened. I have now reconnected and refilled the reservoir but now the washer won't spray.

Do I need to bleed air out of the line? If so how?

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I don't think you should need to bleed the line. Check and wiggle the electrical connection. Are you sure it worked just before you removed the reservoir?

 

The pump hums when I activate it. Just no washer fluid spray.

 

Are you sure your hoses or nozzles are not plugged? If you can find a place, try unhooking a hose from the nozzle.

 

and then blow through it...if you can not blow through it, it is clogged somewhere and the pump is not strong enough to dislodge it.