ANTENNA WIND NOISE NEW DESIGN ANTENNA. GMC Truck Safari

REVISION: 04/07/94

THIS BULLETIN IS BEING REVISED TO ADD THE 1993 MODEL YEAR AND TO CHANGE SERVICE PARTS INFORMATION. PREVIOUS DIVISIONAL PUBLICATION NUMBERS WERE:

CHEVROLET 92-280-9A GMC TRUCK 92-10-125 GM CANADA 92-2-268 ----------------------------------------------------------------------

SUBJECT: ANTENNA WIND NOISE (REPLACE WITH NEW ANTENNA)

MODELS: 1985-93 CHEVROLET AND GMC TRUCK M/L VANS BUILT PRIOR TO THE FOLLOWING VIN BREAKPOINTS:

CHEVROLET: RB123177 GMC: RB509098

CONDITION:

OWNERS MAY COMMENT ON A HOWLING OR WIND WHISTLE NOISE COMING FROM THE ANTENNA.

CAUSE:

TO VERIFY THAT THE NOISE IS ANTENNA RELATED, REMOVE THE ANTENNA AND DRIVE THE VEHICLE. IF THE NOISE IS ELIMINATED, IT MAY BE NECESSARY TO REPLACE THE ANTENNA WITH THE NEW VERSION.

CORRECTION:

REPLACE WITH A NEW ANTENNA WHICH HAS SUPERIOR WIND NOISE CHARACTERISTICS. THIS INVOLVES A SPIRALED DESIGN WHICH RESOLVES THE WIND NOISE AS IT RELATES TO THE ANTENNA.

SERVICE PARTS INFORMATION:

P/N DESCRIPTION QUANTITY 10244073 RADIO ANTENNA MAST 1

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO. ( WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME R0220 ANTENNA MAST, REPLACE USE PUBLISHED LABOR OPERATION TIME

FIGURES: 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.