A/C DEFROST DOOR 'CREAK' NOISE WHEN CHANGING MODES. Cadillac Concours 1996

For 1990-2009 cars

# A/C DEFROST DOOR 'CREAK' NOISE WHEN CHANGING MODES

#### SUBJECT: A/C DEFROST DOOR "CREAK" NOISE WHEN CHANGING MODES (LUBRICATE A/C DEFROST DOOR SHAFT WITH SILICONE GREASE)

#### MODELS: 1996 BUICK PARK AVENUE 1996-97 BUICK LESABRE 1996 CADILLAC CONCOURS, DEVILLE, ELDORADO, SEVILLE 1996 OLDSMOBILE EIGHTY EIGHT, NINETY EIGHT 1996 PONTIAC BONNEVILLE BUILT PRIOR TO FEBRUARY 2, 1996

#### CONDITION:

SOME OWNERS MAY COMMENT ON A "CREAK" NOISE FROM THE A/C DEFROST DOOR WHEN CHANGING HVAC MODES.

#### CORRECTION:

1. REMOVE LEFT SIDE SOUND INSULATOR.

2. LUBRICATE A/C DEFROST DOOR SHAFT WITH SILICONE GREASE.

3. OPERATE A/C MODE DOOR TO VERIFY "CREAK" NOISE IS SUPPRESSED OR ELIMINATED.

4. REINSTALL LEFT SIDE SOUND INSULATOR.

#### WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER DESCRIPTION LABOR TIME =============== =========== ==========

D1787 ACTUATOR VACUUM DIAPHRAGM - 0.3 HR REPLACE

FIGURES: 00 ATTACHMENTS: 00

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.

COPYRIGHT 1996 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.