NO HEAT FROM AIR DUCTS (REPLACE HEATER CONTROL ASSY.). Chevrolet Astro

SUBJECT: NO HEAT FROM AIR DUCTS (REPLACE HEATER CONTROL ASSEMBLY)

MODELS: 1996 CHEVROLET AND GMC M/L MODELS

CONDITION:

SOME OWNERS MAY EXPERIENCE A LOSS OF HEAT AND ONLY COLD AIR OUT OF THE AIR DUCTS.

CAUSE:

THE INTERNAL ACTUATOR ARM OF THE HEATER CONTROL ASSEMBLY MAY HAVE SEPARATED FROM THE TEMPERATURE CONTROL KNOB CAM ALLOWING THE TEMPERATURE SETTING TO REMAIN IN THE COLD POSITION.

CORRECTION:

REPLACE THE HEATER CONTROL ASSEMBLY.

SERVICE PROCEDURE REFER TO THE 1996 M/L VAN SERVICE MANUAL FOR THE PROPER REPLACEMENT PROCEDURE.

PARTS INFORMATION P/N DESCRIPTION QTY 16238435 CONTROL, HTR + A/C (W/C49) 1 16238445 CONTROL, HTR + A/C (W/O C49) 1

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME D0362 CONTROL ASSEMBLY - REPLACE .7

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

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.