Plugged Drain Hose
WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
If a waterleak occurs, check for a plugged drain hose at each corner of drainage system.
- Open the sunroof window.
- To test for blockage, pour a small container of water into the module housing drain trough. Check each corner to confirm the drain hose is draining water.
- Use compressed air, 240 kPa (35 psi) or less to blow out any plugged drain hose.
- Test the system again.
- If the hose remains plugged, ensure it is correctly routed. Verify that no kinks exist in the hose.
- Remove any plugged hoses. For front hoses refer to SUNROOF DRAIN HOSE REPLACEMENT - FRONT or to SUNROOF DRAIN HOSE REPLACEMENT - REAR .
- Remove the blockage using the following steps:
- Push mechanics wire through the hose to remove the obstruction.
- Use compressed air to blow out any remaining material.
- Install the hose. Refer to Drain Hose Routing.