For 1990-2009 cars only
Door Noise Diagnosis Front Side Door Weatherstrip Itch
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 Front Side Door Glass Rattle
Front Side Door Glass Rattle
Symptom
Rattle coming from the bottom of the door to door glass area when the window is completely up.
Possible Cause
The window guide stabilizer is not adjusted properly.
Diagnosis
Close door completely. Push on the bottom of the door glass to check for movement.
Corrective Action
| • | Adjust the window guide stabilizer. |
| • | The stabilizers should be adjusted to 18.5 mm (0.73 in) from the inner edge of the door to the back of the stabilizer. |
| • | If symptom continues, replace the window guide stabilizer. |
Door Noise Diagnosis Side Door Sill Plate Buzz
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 underneath the plate in sensitive areas. |
| • | Replace the sill plate. |
