DUTCH DOOR WATER LEAKS (REPLACE WEATHERSTRIP). GMC Truck Safari

CONDITION:

SOME 1992-93 M/L VANS WITH DUTCH DOORS MAY EXHIBIT A WATER LEAK AT THE REAR DOOR OPENING FRAME ASSEMBLY (FLANGE) WEATHERSTRIP. THIS WILL USUALLY RESULT IN WET CARPET AT THE LEFT OR RIGHT SIDE OF THE CARPET SILL PLATE.

CAUSE:

THIS CONDITION MAY BE THE RESULT OF INSUFFICIENT COMPRESSION OF THE "D" RING WEATHERSTRIP TO THE LIFTGATE/LOWER DOORS.

CORRECTION:

A NEW DOOR OPENING FRAME ASSEMBLY (FLANGE) WEATHERSTRIP HAS BEEN RELEASED INTO PRODUCTION. THE NEW WEATHERSTRIP IS SIMILAR TO THE OLD WEATHERSTRIP, EXCEPT FOR AN INCREASED THICKNESS OF 4MM AND A SMOOTHER TRANSITION AT THE "GOLF CLUB" AREA (THE AREA WHERE THE LOWER DOORS MEET THE LIFTGATE-FIGURE 1). IN ADDITION, THE WEATHERSTRIP AIR RELIEF HOLES HAVE BEEN RELOCATED SO THAT THEY ARE NOW INSIDE THE VEHICLE. THE REST OF THE WEATHERSTRIP IS ALSO THICKER, THUS RESULTING IN BETTER COMPRESSION.

VEHICLES INVOLVED:

1992-93 M/L VANS WITH DUTCH DOORS BUILT AFTER THE FOLLOWING VIN BREAKPOINTS HAVE THE NEW PARTS INCORPORATED INTO PRODUCTION.

CHEVROLET PB130481 GMC PB501358

SERVICE PROCEDURE:

1) REMOVE THE REAR AIR CONDITIONING DUCT IF EQUIPPED OR THE INTERIOR ROOF MOLDING.

2) REMOVE THE SCREWS FROM THE QUARTER PANEL SIDE MOLDINGS TO GAIN ACCESS TO THE WEATHERSTRIP FLANGE.

3) REMOVE THE LOWER CARPET SILL PLATE.

4) REMOVE THE WEATHERSTRIP FROM THE FLANGE.

5) CLEAN THE FLANGE WITH A RELEASE AGENT OR EQUIVALENT.

6) APPLY WEATHERSTRIP ADHESIVE (P/N 12345097 OR EQUIVALENT) TO THE FLANGE AREA, 12-18 INCHES FROM THE CENTERLINE OF VEHICLE. APPLY WEATHERSTRIP ADHESIVE TO THE CONTOURS OF THE FLANGE (FIGURE 2). ADD 3 TO 4 INCHES TO EACH SIDE OF THE CENTER.

7) INSTALL THE WEATHERSTRIP TO THE FLANGE IN THE FOLLOWING ORDER (FIGURE 1 AND 2):

A) ATTACH TO FLANGE AT THE "GOLF CLUB" AREA AND ALIGN THE "GOLF CLUB" JOINT WITH THE BOTTOM EDGE OF THE STRIKER, REPEAT STEPS FOR THE OTHER SIDE.

B) CLOSE THE LOWER DOORS AND ALIGN THE WEATHERSTRIP "GOLF CLUB" AND "BATWING JOINT". THE "GOLF CLUB" SHOULD OVERLAP THE "BATWING JOINT" APPROXIMATELY 1.5 INCHES AND THERE SHOULD BE NO GAPS BETWEEN THE WEATHERSTRIP AT THIS AREA (FIGURE 1).

C) INSTALL THE WEATHERSTRIP INTO THE CONTOURS AND VERIFY THAT THE LIP OF THE WEATHERSTRIP IS FULLY SEATED TO THE FRAME OPENING.

D) FINISH INSTALLING THE WEATHERSTRIP TO THE FLANGE, AND GENTLY INSURE IT IS FULLY SEATED WITH A RUBBER MALLET OR EQUIVALENT.

8) WATER TEST THE VEHICLE USING A HIGH PRESSURE WASHER FOR 2-3 MINUTES.

9) INSTALL THE LOWER CARPET SILL PLATE.

10) INSTALL THE REAR QUARTER PANELS AND SCREWS.

11) INSTALL THE REAR AIR CONDITIONING DUCT (IF EQUIPPED) OR THE INTERIOR ROOF MOLDING.

12) USE A MILD DETERGENT (I.E. DISHWATER SOAP OR EQUIVALENT) TO LUBRICATE THE REAR WEATHERSTRIPS AT THE "BATWING JOINT" AND "GOLF CLUB" AREA. THIS WILL ALLOW THE WEATHERSTRIP TO SEAT INTO PLACE UNTIL A FINAL SET HAS TAKEN.

PARTS INFORMATION

DESCRIPTION PART NUMBER WEATHERSTRIP ASM 15961523 L/GATE

PARTS ARE EXPECTED TO BE AVAILABLE ON 3/01/93.

WARRANTY INFORMATION

LABOR OPERATION: C1335 WEATHERSTRIP, LIFTGATE REPLACE - 0.6 HRS

ADD: IF EQUIPPED WITH REAR AIR CONDITIONING - 0.2 HRS

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.