Windshield Noise

II. Windshield upper reveal molding gaps to the roof of 2 mm or less, follow procedure A. (Refer to Figure 2, top illustration for gap.) If gap is larger than 2 mm, follow Procedure B.

Procedure A:

1. With 1/2 inch masking tape, tape the upper reveal molding all the way across the roof following the rear most edge of the reveal molding. Tape the roof at the rear edge of the molding all the way across the car.

2. Using GM Goodwrench RTV Silicone Rubber Sealer, P/N 12345739, and the nozzle from the package fill the gap between the molding and the roof.

3. Remove tape and clean any excess sealer on the molding and the body with adhesive cleaner.

Labor Operation: T3349
Labor Time: .3 hour

Procedure B:

NOTE:
This procedure may require a new molding depending on difficulty of removal. Windshield upper reveal molding P/N 16616066.

Windshield upper reveal molding gaps to the roof may be corrected by following the procedure listed below.

1. Loosen and remove (partially) both RH and LH auxiliary weatherstrips.

2. Remove both windshield side reveal moldings.

3. Grasp the windshield upper reveal molding end and rotate forward while removing from cavity.

4. Remove the foam tape from the molding if present from the back side of the molding.

5. Trim the lower lip off the reveal molding as shown in Figure 2.

6. Dry fit the molding to the opening.

7. Remove adhesive from cavity, if necessary.

8. Apply urethane, P/N 12345633, into the cavity up to the bottom side of the windshield.

9. Install molding.

10. Tape the molding to the body using masking tape.

11. Allow urethane to cure overnight at room temperature before removing tape.

12. Remove any excess squeeze out of urethane from the glass and the body after tape is removed.

Labor Operation: T1939
Labor Time: .7 hour

III. Wind rush due to gap at windshield side reveal molding to glass, left and/or right side.

1. Remove auxiliary weatherstrip to access the windshield side reveal molding retaining screws.

2. Remove the retaining screws and the molding.

3. Holding the windshield side reveal molding in position, flush the molding to the glass. Determine how much elongation of the screw holes in the molding is necessary to position the molding flush to the glass.

4. Using a small rat-tail file, elongate the retaining holes in the direction and length needed to position the molding flush to the glass.





5. On the underside of the reveal molding run a bead of RTV, or equivalent, across width of molding at the lower retaining hole to fill the void between the glass and the inside surface of the windshield side reveal. Refer to Figure 3, Section A-A. Sealing this area will stop a tunneling effect up the molding.

6. Put a light film of oil on the A-pillar at the lower retaining hole to facilitate any future serviceability for removing the molding.

7. Reinstall the windshield side reveal molding and retaining screws per Section 10-2 of the Service Information Manual.

8. Using strip caulk fill the cavity at the top of the windshield side reveal molding to the upper windshield reveal molding.

IMPORTANT:
Be careful not to trap the primary seal under the auxiliary seal when reinstalling the auxiliary seal.

Labor Operation: T1898
Labor Time: .3 hour
.2 hour for other side