Doors - Rear Side Noise

NUMBER:
92-T-115

CORP.REF.NO:
261505

DATE:
July 1992

SECTION:
10-6



SUBJECT
REAR SIDE DOOR HEADER ITCH - INSTALL NEW WEATHER STRIP ASSEMBLY


MODELS/YEARS
1991-92 BRAVADA



Some 1991-1992 Bravadas may exhibit an itch type noise at the top of the rear door. The "itch" may occur between the upper auxiliary weatherstrip seal and top of the door (at the header).

To correct this condition, it may be necessary to replace the rear side door upper weatherstrip assembly with a new weatherstrip assembly which is smaller in width. The smaller width seal will help eliminate the possibility of the door contacting the seal, causing an itch type sound at the top of the door.

The new design parts have been installed in Bravadas built after vehicle number N2708388.

SERVICE PROCEDURE:







1. Remove the upper auxiliary weatherstrip seal by pulling it from the door. Refer to view A in the illustration.

2. Use either a 50-50 mixture (by volume) of water and isopropyl alcohol; or flash naphtha to clean the affected sheet metal surface and remove any remaining glue residue.

3. Use heat to dry the solvent on the affected sheet metal.

The sheet metal temperature should be 80 degrees F. (27 degrees C) or 10 degrees F. (6 degrees C) above the air temperature in the area, whichever is higher.

The sheet metal temperature should NOT exceed 105 degrees F. (41 degrees C).

4. Heat the weatherstrip seal to 75 to 80 degrees F. (24 to 27 degrees C) just prior to installation.

5. Immediately prior to installation, remove the protective liner on the back of the warm seal. The adhesive surface MUST be kept clean and warm.







6. Install a new WARMED weatherstrip seal (P/N 15700883-LH and 15700884-RH). Refer to View A and Section B-B in the illustration.

Position the weatherstrip seal to the roof panel with the tapered end of the seal to the rear.

Press firmly on the seal using 3 to 10 lbs (13 to 44 N) of force to provide proper adhesion.

7. Check for proper seal to sheet metal adhesion. If any gaps between the seal and sheet metal exist, the seal must be removed and replaced with a NEW seal following Steps 2 through 6.

8. Check the door operation to insure no interference between the seal and door exists. THE SEAL SHOULD NOT CONTACT THE DOOR SHEET METAL. If contact exists, repeat Steps 1 through 7 using a NEW seal.








SERVICE PARTS INFORMATION



Obtain isopropyl alcohol or flash naphtha locally.

Parts are currently available from GMSPO.

WARRANTY INFORMATION:
Labor Operation:
C1136-RH
C1137-LH

Labor Time:
Use current Labor Time Guide