Water Drainage And Wind Noise Diagnosis

The sliding glass panel is designed to provide a seal against water entry by providing a snug fit between the roof and the seal. The fit can be checked by inserting a business card or equivalent, between the roof and the seal. The piece of paper should have some resistance when pulled out when the glass panel is in the closed position. The sunroof housing will drain off a minimum amount of water. Excessive wind noise could result if the gap clearances are exceeded. If sunroof glass panel adjustment is need. Refer to GLASS, SUNROOF, REAR, ADJUSTMENTS .

Adequate drainage is provided by a sunroof housing drain trough which encircles the sliding glass panel and allows water to be removed by using drain hoses. If a wet headliner, or other water leak complaints are encountered before performing any adjustments, first make sure the drainage system is not plugged or disconnected. Using a pint-sized container, pour water into the sunroof housing drain trough. If water flow is restricted, use compressed air to blow out any material plugging the drain system. Once completed, recheck the drainage system.

To further check for a disconnected drain hose:

1. Lower the headliner, as necessary to gain access to sunroof housing drain tubes. Refer to HEADLINER, REMOVAL AND INSTALLATION .
2. Repair as necessary.