For 1990-2009 cars only
Door Noise Diagnosis Front Side Door Weatherstrip Itch
Symptom
Itching noise heard at the door window (1) to weatherstrip (1) interface.
Possible Cause
Door glass (2) rubbing against the weatherstrip (1).
Diagnosis
Test drive the vehicle, roll the window (2) down so it is just off the weather-strip (1).
Corrective Action
Apply Krytox weatherstrip lubricant (GM P/N 9985767) to weatherstrip/glass interface. Use Krytox oil only, after application, let stand 30 minutes. Wipe off excess.
Door Noise Diagnosis Side Door Sill Plate Buzz
Symptom
Buzzing sound coming from the lower door area.
Possible Cause
| • | The side door sill plate is loose and emits a buzzing sound. |
| • | The clips on the sill plate are broken. |
Diagnosis
Open door, push sill plate back and forth to check for movement.
Corrective Action
| • | Place foam tape (1) underneath the plate in sensitive areas. |
| • | Replace the sill plate. |
