H3 L5-3.7L (2007)
3. Use compressed air, 241 kPa (35 psi) or less to blow out any drain hose that is plugged.
4. Test the system again.
5. If the hose remains plugged, check to see it is properly routed and does not have a kink. Refer to Drain Hose Routing in this procedure.
6. Remove the blockage using the following steps.
1. Push mechanics wire through the hose to remove the obstruction.
2. Use compressed air in order to blow out any remaining material.
Disconnected Drain Hose
Inspect the drainage system for disconnected drain hoses. Complete the following steps in order to obtain partial access to drain hoses and check for a
disconnected hose.
1. Open the sunroof window panel.
2. Lower the headliner as needed. Refer to Headlining Trim Panel Replacement.
3. Connect any disconnected hoses.
4. Ensure that the rear drain hoses are properly routed in the metal roof slot and taped in place.
