This Preliminary Information communication provides information to the technician about vehicles that may have a water leak into the cab of the truck, water staining may be seen in the headliner or water may be on the floor. Technician should inspect roof ditch, rear glass, center high mounted stop light, windshield, cowl seam, Heater-Vent-Air Conditioning drain tube, Pillar area, Water collecting in the sill area, and Pressure Relief Valve.
