REAR & SIDE CARGO DOOR LATCH RATTLES. GMC Truck GMC G Van 1990

SUBJECT: REAR AND SIDE CARGO DOOR (RPO E24) LATCH RATTLES (INSTALL NEW ADJUSTABLE WEDGE AND NYLON COATED STRIKERS)

MODELS: 1985-94 CHEVROLET AND GMC TRUCK G VANS BUILT BEFORE THE FOLLOWING BREAKPOINTS:

PLANT DIVISION VIN FLINT GMC RF514045 FLINT CHEVROLET RF135061

CONDITION:

SOME CUSTOMERS MAY COMMENT ON A RATTLING NOISE COMING FROM THE SIDE SWING OUT AND REAR CARGO DOOR LATCHING MECHANISM. THE RATTLING CONDITION IS MORE SEVERE DRIVING OVER ROUGH ROADS.

CAUSE:

A SIGNIFICANT PORTION OF THE RATTLE CAN BE ATTRIBUTED TO A METAL TO METAL CONTACT BETWEEN THE UPPER AND LOWER LATCH TO STRIKER (VARIATION OF STRIKER "PLAY" WITHIN THE LATCH MECHANISM). THIS CONDITION MAY BE FURTHER AGGRAVATED BY DOOR CHUCKING DUE TO IMPROPER SHIMMING OF THE DOOR WEDGES.

CORRECTION:

INSTALL A NEW ADJUSTABLE WEDGE (BUMPER ASSEMBLY) WHICH WILL NEED TO BE ADJUSTED (NO SHIMMING REQUIRED), TO ELIMINATE THE SHIMMING VARIATION OF THE OLD WEDGE. INSTALL A NEW STRIKER ASSEMBLY WHICH HAS BEEN NYLON COATED.

NOTICE: THERE IS A POSSIBILITY THAT WHEN INSTALLING THE NEW ADJUSTABLE WEDGE ONTO A VEHICLE BUILT PRIOR TO THE ABOVE VIN BREAKPOINTS, A WATER LEAK IN THE DOOR OPENINGS MAY OCCUR. THIS MAY BE DUE TO DOOR TO DOOR ALIGNMENTS. IF THE WEDGE IS USED, WATER TEST THE COMPLETE DOOR AREA TO ASSURE THAT NO WATER LEAKS ARE PRESENT.

1. REMOVE THE OLD BUMPER ASSEMBLY AND DISCARD SHIMS/SPACERS IF PRESENT. 2. LOOSEN THE ALLEN SCREW ON THE BUMPER ASSEMBLY AND LOCATE BUMPER AT ITS LOWEST ADJUSTABLE POINT. 3. INSTALL NEW BUMPER ASSEMBLY. 4. CLOSE THE DOOR AND ADJUST THE BUMPER ASSEMBLY BY TIGHTENING THE ALLEN SCREW CLOCKWISE. THE BUMPER ASSEMBLY WILL ROTATE AND ADJUST TO THE DOOR OPENING. TORQUE THE ALLEN SCREW TO 5-7 N.M (4-5 LBS. FT.) FOR PROPER ADJUSTMENT. 5. INSTALL STRIKER ASSEMBLY. IF A SPACER IS INSTALLED UNDERNEATH THE OLD STRIKER ASSEMBLY, RETAIN THE SPACER FOR USE FOR THE NEW STRIKER. IF NO SPACER IS PRESENT, THEN MOST LIKELY AN ADDITIONAL SPACER IS NOT NEEDED.

PARTS INFORMATION

P/N DESCRIPTION QTY 15964010 ADJUSTABLE WEDGE 2/ DOOR (BUMPER ASSEMBLY) 15712556 STRIKER ASSEMBLY (SIDE DOOR) 2/ DOOR 15712557 STRIKER ASSEMBLY (REAR DOOR) 2/ DOOR

PARTS ARE EXPECTED TO BE AVAILABLE FROM GMSPO ON 1/16/95.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME B5092 UPPER LATCH, SWING OUT DOOR USE PUBLISHED B5093 LOWER LATCH, SWING OUT DOOR LABOR OPERATION B5052 STRIKER, SWING OUT SIDE DOOR, UPPER LATCH B5053 STRIKER, SWING OUT SIDE DOOR, LOWER LATCH

FIGURES: 0

CAPTIONS: 0

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.