BODY Drain Holes
The drain holes in the car body and doors should be checked periodically to ensure that they are clear. There are four drain holes in the door sill panel on each side of the car, and three in the bottom of each door . Use a piece of wire to probe the apertures and remove any obstruction.
It is most important that these drain holes be unobstructed to allow a flow of fresh air through the body side members and door panels and prevent the accumulation of moisture, otherwise corrosion will quickly begin to form.