Will this pump work with my existing washer hoses and reservoir?

Yes. This pump connects to your factory lines and reservoir without modification. Slip the intake hose onto the barbed fitting and plug the electrical connector straight into your harness.

Do I need to drain the reservoir before swapping this in?

Not required, but it helps. Less fluid in the tank makes access easier and reduces spillage during the swap. Either way, make sure the pump is fully seated on the intake line before refilling.

What if the pump doesn't spray immediately after install?

Air in the line is usually the culprit. Run the washer spray for 3–5 seconds in short bursts to push air out. If spray is weak or absent after that, check that the intake hose is fully seated and not kinked in the reservoir.