Drainage System Check and Water Leak Corrections
DRAIN HOSESThe roof sliding panel housing contains the track assemblies, cable and drive mechanisms, and a drain trough that encircles the sliding panel. Attached to the roof sliding panel housing are four sliding roof panel frame drain hoses. One sliding roof panel frame drain hose is attached at each corner of the roof sliding panel housing. The two front sliding roof panel frame drain hoses are routed down the windshield pillars and into the cowl sides exiting at rocker panel drain holes; ends of hose are not reusable. The two rear sliding roof panel frame drain hoses are routed down the rear pillars, along the inside rear quarter panel and through the rear of the vehicle.
NOTE: Prior to performing any service, first verify that the drainage system is not plugged or restricted. Use a 473 ml (16 ounce) container and pour water into the drain trough. Look at the rear of the vehicle to make sure that the water drains from the rocker panels forward of the rear wheel well.
If the water flow is restricted, use compressed air to blow out any material in the drain hose system. Test by pouring water slowly into the system again.
After making sure that the drainage system is not restricted, verify that gaps do not exist between the roof sliding panel seal and the roof panel. If a gap exists, the gap must be brought to specification before any further action is taken. Adjust roof opening glass.
With clearances within specification, and roof opening glass closed, have an assistant spray water on the roof opening glass while visually inspecting the area from the inside to see if an excessive amount of water is entering the drain trough. A large volume of water indicates that an excessive clearance exists between the roof sliding panel seal and the roof.
SLIDING ROOF PANEL
The roof sliding panel housing has controlled water leak at the roof sliding panel seals. A properly adjusted roof opening glass should result in a snug fit between the roof sliding panel seal and the roof skin around the entire opening. The fit can be checked by using a feeler gauge set at 0.25 mm (0.01 inch) between the roof sliding panel seal and roof. If these specifications are not maintained, water will overflow the drain troughs and enter the roof sliding panel housing running down into the passenger compartment when the vehicle is stopped abruptly. Also, increased wind noise could result if glass clearances are not within specification.
WET HEADLINING-SIDES
If water drips from the roof headlining above the door or quarter window, check to see if the sliding roof panel frame drain hose is disconnected from the roof sliding panel housing. Apply Weatherstrip Adhesive E8AZ-19552-A or equivalent meeting Ford Specification ESB-M2G14-A on drain tube nipple and insert sliding roof panel frame drain hose.
ROOF PANEL OVERCROWNED
If the roof panel is overcrowned to the contour of the roof sliding panel housing (at rear of roof sliding panel housing), this can cause wind noise or water leak conditions.
CAUTION: Excessive overbending could distort the roof panel, requiring costly metal finishing service. This procedure should be used only as a last resort.
Remove roof sliding panel housing from vehicle and carefully overbend the center of the roof panel by applying downward pressure.
ROOF PANEL UNDERCROWNED
A roof opening glass scratch can be caused by the rear of the roof panel being slightly under crowned.
CAUTION: Excessive overbending could distort the roof panel, requiring costly metal finishing service. This procedure should be used only as a last resort.
Open the roof opening glass assembly slightly and compare the contour of roof panel and roof opening glass. If the roof panel appears flattened in the center, and the roof opening glass scuffs on the underside of the roof panel, remove the roof sliding panel housing from the vehicle and arch the roof panel by pushing up on underside of roof panel to increase the roof panel arch.