Will this pump work if my truck originally had a washer level sensor?

If your Tacoma came equipped with a washer sensor, you'll need to source a pump with the sensor hole or modify the reservoir. This pump is designed for trucks running without that sensor. Verify your setup before ordering.

Do I need to drain the old fluid before swapping in the new pump?

Draining the reservoir first makes the job cleaner and faster. You can pull the old pump, install the new one, refill, and test — no special tools required.

What if the pump doesn't push fluid after installation?

Check for air locks by running the washer for 10–15 seconds continuously. If fluid still won't flow, inspect the hoses for kinks or debris, and confirm the reservoir actually has washer fluid in it.