BOOMING SOUND WHEN CLOSING DOOR - APPLY SEALER. Buick Riviera 1993

SOME 1993 BUICK RIVIERAS BUILT PRIOR TO VIN PU403266 MAY EXHIBIT A RESONANT BOOMING SOUND THAT CAN BE HEARD WHEN CLOSING THE DOOR.

TO REPAIR THIS CONDITION USE THE FOLLOWING PROCEDURE:

1. BEGIN WITH THE DOOR GLASS IN THE FULL UP POSITION.

2. REMOVE DOOR TRIM PANEL. REFER TO 1993 RIVIERA SERVICE INFORMATION MANUAL.

3. REMOVE DOOR MOUNTED SPEAKER.

4. PULL THE WATER DEFLECTOR UP FROM BOTTOM FAR ENOUGH TO EXPOSE OPENINGS IN DOOR INNER PANEL ALLOWING ACCESS TO DOOR IMPACT BAR AND DOOR OUTER.

NOTE: INSPECT TO ENSURE THAT CONTACT SURFACES ARE CLEAN AND FREE OF ANY AFTERMARKET UNDERCOATING MATERIAL. IF SO, CLEAN WITH 3M P/N 08984 GENERAL PURPOSE ADHESIVE CLEANER OR EQUIVALENT, MAKING SURE NOT TO DAMAGE THE PAINT PRIMER SURFACE.

5. USING 3M P/N 08360 OR 08361 ULTRA-PRO URETHANE SEAM SEALER OR EQUIVALENT, PLACE FOUR OR MORE BEADS BETWEEN THE DOOR IMPACT BAR AND THE DOOR OUTER. LOCATE THE BEADS BETWEEN THE EXISTING INSULATION "GUMDROPS". MAKE SURE THAT THE BEADS CONTACT BOTH THE DOOR OUTER AND THE DOOR IMPACT BAR. REFER TO FIGURE 1.

6. REINSTALL THE WATER DEFLECTOR.

NOTE: MAKE SURE THE WATER DEFLECTOR IS INSTALLED PROPERLY WITH SMOOTH CONSTANT CONTACT AND FIRM ADHESION TO ENSURE DESIRED WATER LEAK CONTROL.

7. REINSTALL DOOR MOUNTED SPEAKER.

8. REINSTALL DOOR TRIM PANEL.

FOR WARRANTY PURPOSES USE LABOR OPERATIONS T6710 (RIGHT-HAND) AND T6711 (LEFT-HAND) AT .7 HOUR.

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.