Check for loose dirt and corrosion around the inside of the floor
pan reinforcement member access holes. This is the first indication that corrosion
may exist in hidden areas, and repairs may be required before the final cleaning
and protective treatment is performed.
Using a chisel, ensure that the drain provisions in the floor
pan reinforcement members are open. There are drain holes in the body side
panels also. These holes can be opened using a punch or drift. The side panel
drain holes are in the rear section of the rocker panels, and in the lower
rear quarter panels.