The water flow should help clear the drain holes. A wooden tool is preferable to metal, which can scratch paint and create a site where rust can take hold, but you can also use a length of soft ...

Drain plugs typically have a soft metal washer or a sealing washer with a rubber insert. Use a properly fitting box wrench or a 6-point socket wrench to remove the plug.

Why do you need to check the drain holes in your car doors? Because water can get past window seals and inside the doors when it rains or when you wash your car, and the water is supposed to exit ...