Sunroof Housing Front Drain Hoses - All Models

Most likely cause of an obstruction may be the front sunroof housing drain hose(s) pinched by the cockpit attachment bolts during assembly.

1. Open sunroof glass to the full open position.

2. Using a standard measuring cup, pour two cups of water directly into the sunroof housing front drain hole. The water should be able to be poured into the sunroof housing front drain hole in under 60-80 seconds without water collecting along the sunroof housing drain channel and spilling over into the vehicle. Repeat this procedure for the other sunroof housing front drain hole.

^ If water pours through each sunroof housing front drain hole in under 60-80 seconds, refer to either "Rear Sunroof Housing Drain Hoses-Sedan," "Rear Sunroof Housing Drain Hoses-Coupe" or "Sunroof Module Sealer" in this bulletin.

^ If water does not pour through each sunroof housing drain hole in under 60-80 seconds, proceed to the next step.

3. Using a standard air gun, limited to 207 kPa (30 psi), blow into the sunroof housing front drain hole(s) with the obstruction and attempt to clear the obstruction.

4. Water test again, using a standard measuring cup, pour two cups of water directly into the sunroof housing front drain hole that was obstructed. The water should be able to be poured into the sunroof housing front drain hole in under 60-80 seconds without water collecting along the sunroof housing drain channel and spilling over into the vehicle. Repeat this procedure for the other sunroof housing front drain hole if it was also obstructed.

^ If water pours through the sunroof housing front drain hole(s) in under 60-80 seconds, obstruction has been removed.

^ If water still does not pour through each sunroof housing front drain hole in under 60-80 seconds, proceed to the next step.

5. Replace sunroof housing front drain hose(s) with new sunroof housing front drain hose(s) (P/N 21052828) and new sunroof housing drain hose clamp (P/N 01626260). (Refer to "Front Drain Hose Grommet" in the "Vehicle Interior Systems" section of the appropriate year Body/Repair Service Manual.)