WIND RUSH NOISE FROM DASH WITH MAXIMUM A/C ON. Chevrolet S10 Pickup

REVISION: 11/05/96

THIS BULLETIN IS BEING REVISED TO CHANGE THE LABOR OPERATION NUMBER. PLEASE DISCARD CORPORATE BULLETIN NUMBER 66-12-04 (SECTION 1 - HVAC) ----------------------------------------------------------------------

SUBJECT: WIND RUSH NOISE FROM RIGHT SIDE DASH WITH MAXIMUM A/C ON AND LOW BLOWER SPEED (REPLACE AIR INLET ASSEMBLY AND GASKET)

MODELS: 1995-96 CHEVROLET AND GMC S/T MODELS 1996 OLDSMOBILE BRAVADA WITH AIR CONDITIONING

CONDITION:

SOME OWNERS MAY COMMENT ABOUT A WIND RUSH TYPE NOISE FROM THE RIGHT SIDE OF THE DASH WHEN THE A/C CONTROL IS AT THE MAXIMUM POSITION AND THE FAN BLOWER CONTROL IS ON LOW SPEED. THE NOISE WILL USUALLY START AT ABOUT 35 MPH (57 KPH) AND GET LOUDER AS VEHICLE SPEED INCREASES.

CAUSE:

THE AIR INLET ASSEMBLY DOOR IS NOT SEALING PROPERLY.

CORRECTION:

VERIFY THE RECIRCULATION DOOR ACTUATOR IS FUNCTIONING PROPERLY. REPLACE THE AIR INLET ASSEMBLY AND GASKET PER THE APPLICABLE S/T TRUCK SERVICE MANUAL, SECTION 1A.

PARTS INFORMATION

P/N DESCRIPTION QTY 52457315 AIR INLET ASSEMBLY 1 52458500 GASKET 1

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME D2109 AIR CONDITIONING MODULE 3.0 HR COMPONENTS, REPLACE

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.