- Depending on where the leak is located, you may have to remove
the trim molding or the headliner in order to repair the leak.
 
- In order to repair a leak
when removal of the molding or the headliner is necessary, perform the following
 steps:
 
| 2.1.  | Cut out a portion of the adhesive in the leak area from inside
or outside the vehicle. | 
 
| 2.2.  | Clean and remove all loose particles from the area. | 
 
| 2.3.  | Caulk in adhesive between the window and the pinchweld flange
where the old adhesive has been cut away. | 
 
| 2.4.  | Feather the old adhesive out several inches in order to cover
each side of the leak area. | 
 
| 2.5.  | Use urethane adhesive from GM P/N 12346284 or equivalent. | 
 
| 2.6.  | Mist the newly applied adhesive with water in order to cure the
adhesive. | 
 
| 2.7.  | Test the vehicle for leaks. | 
 
| 2.8.  | Install the molding. | 
 
| 2.9.  | Allow the adhesive to dry for several hours. | 
 
| 2.10.  | Test for water leaks. |