WINDSHIELD WIPER BLADE CHATTER (REPLACE WIPER ARM & BLADE). GMC Truck GMC C Pickup

REVISION: 05/23/96

THIS BULLETIN IS BEING REVISED TO CHANGE THE PART NUMBER FOR THE S/T WIPER BLADE (LH) AND ADD S/T WIPER BLADE (RH). PLEASE DISCARD CORPORATE BULLETIN NUMBER 56-82-04 (SECTION 8 - CHASSIS/BODY ELECTRICAL). ******************************************************************

SUBJECT: WINDSHIELD WIPER BLADE CHATTER (REPLACE WIPER ARM AND BLADE)

MODELS: 1988-95 CHEVROLET AND GMC C/K MODELS 1990-95 TOPKICK/KODIAK MODELS 1994-95 CHEVROLET AND GMC S/T PICKUPS 1995 CHEVROLET AND GMC S/T UTILITIES BUILT PRIOR TO THE FOLLOWING BREAKPOINTS:

C/K PLANT DIVISION VIN FORT WAYNE GMC 1GTEK14ZXSZ542655 JANESVILLE GMC 1GKFK16K3SJ737679 OSHAWA GMC 2GTEC19K6S1554514 PONTIAC EAST GMC 1GTEK19K9SE529365 SILAO GMC VIN NOT AVAILABLE* FORT WAYNE CHEVROLET 1GCEC14K1SZ211950 JANESVILLE CHEVROLET 1GNEK13K3SJ378403 OSHAWA CHEVROLET 2GCEC19Z0S1223361 PONTIAC EAST CHEVROLET 1GCGC29K9SE210396 SILAO CHEVROLET VIN NOT AVAILABLE*

MEDIUM DUTY PLANT DIVISION VIN JANESVILLE GMC 1GDL7H1P6SJ520795 JANESVILLE CHEVROLET 1GBKC34N1SJ112511

S/T PLANT DIVISION VIN LINDEN GMC 1GTCS1442SK528561 MORAINE GMC 1GKDT13W7S2535904 SHREVEPORT GMC 1GTCS19Z1S8525667 LINDEN CHEVROLET 1GNDT13W4SK206435 MORAINE CHEVROLET 1GNDT13W4S2195680 SHREVEPORT CHEVROLET 1GCCS1445S8205103

*LIMITED PRODUCTION: NEW BLADES/ARMS IN PRODUCTION 4/95.

****************************************************************** THIS BULLETIN IS BEING REVISED TO CHANGE THE PART NUMBER FOR THE S/T WIPER BLADE (LH) AND ADD S/T WIPER BLADE (RH). PLEASE DISCARD CORPORATE BULLETIN NUMBER 56-82-04 (SECTION 8 - CHASSIS/BODY ELECTRICAL). ******************************************************************

CONDITION:

SOME CUSTOMERS MAY COMMENT THAT THEIR WINDSHIELD WIPER CHATTERS OR SQUEAKS AS THE BLADE MOVES ACROSS THE WINDSHIELD SURFACE.

CAUSE:

THE WINDSHIELD GLASS OR WIPER BLADES MAY BECOME CONTAMINATED WITH DIRT, ROAD GRIME, CAR WAX, ETC. THE WIPER ARM MAY BE EXERTING AN INSUFFICIENT AMOUNT OF PRESSURE ON THE WINDSHIELD GLASS, OR THE WIPE ANGLE OF THE BLADE TO THE GLASS MAY BE INADEQUATE.

CORRECTION:

CLEAN THE WINDSHIELD GLASS WITH GLASS CLEANER (P/N 1050427) OR EQUIVALENT.

IMPORTANT: THE GLASS IS CLEAN WHEN RINSE WATER DOES NOT "BEAD- UP", BUT "SHEETS" ACROSS THE ENTIRE GLASS SURFACE. MULTIPLE CLEANINGS MAY BE REQUIRED TO REMOVE ALL CONTAMINANTS.

THEN REPLACE THE RESPECTIVE WIPER ARMS AND BLADE ASSEMBLIES WITH NEW PART NUMBERS LISTED IN THE CORRESPONDING SERVICE PROCEDURE.

C/K AND TOPKICK/KODIAK SERVICE PROCEDURE

IMPORTANT: THE NEW WIPER ARMS ARE SIGNIFICANTLY DIFFERENT IN APPEARANCE THAN THE FORMER ARMS. FOR THIS REASON THEY SHOULD BE INITIALLY INSTALLED AS A SET AND NOT REPLACED INDIVIDUALLY.

1. REMOVE THE DRIVER'S SIDE AND PASSENGER'S SIDE WIPER ARMS ACCORDING TO SECTION 8E1 OF THE SERVICE MANUAL (WIPER ARM ASSEMBLY REPLACEMENT). 2. INSTALL THE REDESIGNED WIPER ARMS WITH THE ENHANCED WIPE ANGLE ACCORDING TO SECTION 8E1 OF THE SERVICE MANUAL (WIPER ARM ASSEMBLY REPLACEMENT). (DRIVER'S SIDE P/N: 22144823; PASSENGER'S SIDE P/N: 22144822)

NOTICE: MID-WAY UP THE BACK OF THE ARM WILL BE A LETTER D (DRIVER) OR A LETTER P (PASSENGER). MAKE SURE THAT THE ARMS ARE INSTALLED ON THE CORRECT SIDE. INCORRECT INSTALLATION WILL CAUSE AN IMPROPER WIPE ANGLE.

3. INSTALL THE REDESIGNED WIPER BLADES ACCORDING TO SECTION 8E1 OF THE SERVICE MANUAL (WIPER BLADE ASSEMBLY REPLACEMENT - P/N: 22154886). THE REDESIGNED WIPER BLADES HAVE A SHEPHERD'S HOOK ATTACHMENT AND 6 CONTACT POINTS COMPARED WITH 4 CONTACT POINTS AND A PIN ATTACHMENT ON THE FORMER BLADES.

S/T SERVICE PROCEDURE

1. REMOVE THE DRIVER'S SIDE WIPER ARM ACCORDING TO THE PROCEDURE LISTED IN SECTION 8E1 OF THE SERVICE MANUAL (WIPER ARM ASSEMBLY REPLACEMENT). 2. INSTALL THE REDESIGNED DRIVER'S SIDE WIPER ARM (P/N 15723135) ACCORDING TO SECTION 8E1 OF THE SERVICE MANUAL (WIPER ARM ASSEMBLY REPLACEMENT). THIS REDESIGNED ARM HAS AN ENHANCED WIPE ANGLE. 3. INSTALL THE REDESIGNED DRIVER'S SIDE WIPER BLADE (P/N 15731161) ACCORDING TO SECTION 8E1 OF THE SERVICE MANUAL (WIPER BLADE ASSEMBLY REPLACEMENT). THIS REDESIGNED BLADE HAS 8 CONTACT POINTS FOR MORE UNIFORM CONTACT PRESSURE.

NOTICE: THE DRIVER'S SIDE ARM AND BLADE WILL NOT CORRECT A CHATTER/SQUEAK ON THE PASSENGER'S SIDE DUE TO DIFFERING WIPE ANGLES.

PARTS INFORMATION

P/N DESCRIPTION QTY 1050427 WINDSHIELD CLEANER (SPRAY CAN) AS NEEDED 22144822 C/K AND TOPKICK/KODIAK WIPER ARM (RH) 1 22144823 C/K AND TOPKICK/KODIAK WIPER ARM (LH) 1 22154886 C/K AND TOPKICK/KODIAK WIPER BLADE (BOTH SIDES) 2 15723135 S/T WIPER ARM (LH) 1 15731161 S/T WIPER BLADE (LH) 1 15731162 S/T WIPER BLADE (RH)

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME N3620 ARM, WIPER - REPLACE USE PUBLISHED LABOR OPERATION TIME

FIGURES: 0

CAPTIONS: 0

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