RECIRCULATION MODE DOES NOT FUNCTION

SUBJECT: RECIRCULATION MODE DOES NOT FUNCTION OR INADEQUATE COOLING IN THE RECIRCULATION MODE (CHECK FOR CORRECT AIR INLET MODE ACTUATOR)

MODELS: 1995 CHEVROLET AND GMC C/K MODELS WITH A/C (RPO C60)

CONDITION:

THE AIR INLET OR RECIRCULATION VALVE MAY REMAIN IN THE OUTSIDE AIR POSITION EVEN IF RECIRCULATION MODE IS CHOSEN BY THE OPERATOR.

CAUSE:

INCORRECT AIR INLET VALVE ACTUATOR INSTALLED.

CORRECTION:

CHECK FOR THE CORRECT AIR INLET MODE ACTUATOR. THE LABEL ON THE CORRECT ACTUATOR IS GREEN IN COLOR AND HAS PART NUMBER 16167292 AND A LARGE WHITE LETTER "T" PRINTED ON IT. THE INCORRECT ACTUATOR IS ALSO GREEN IN COLOR, BUT HAS PART NUMBER 16163982 AND A LARGE BLACK "R" PRINTED ON IT (FIGURE 1).

SERVICE PROCEDURE

WHILE POSITIONED ON THE FLOOR OF THE PASSENGER'S SIDE, LOOK UP UNDER THE INSTRUMENT PANEL. WITH THE AID OF A FLASH LIGHT, OBSERVE THE LABEL ON THE AIR INLET ACTUATOR (FIGURE 1). IF THE CORRECT PART NUMBER AND LETTER CODE ARE OBSERVED, DIAGNOSE THE CONDITION USING THE APPROPRIATE 1995 SERVICE MANUAL. IF THE ACTUATOR IS INCORRECT, PROCEED AS FOLLOWS:

1 USE A LONG HANDLED SMALL FLAT SCREW DRIVER TO DISCONNECT THE WIRING CONNECTOR FROM THE ACTUATOR. 2 USE A 1/4" DRIVE RATCHET WITH A 6" LONG HANDLE AND A 5.5MM 6 POINT SOCKET TO REMOVE THE TWO SCREWS SECURING THE ACTUATOR TO THE CASE. 3 REMOVE THE ACTUATOR. 4 MANUALLY REPOSITION THE AIR INLET VALVE SHAFT SO THAT THE TWO FLATS ARE VERTICAL. 5 INSTALL THE CORRECT ACTUATOR. 6 PLACE A SMALL PIECE OF THUMB GRADE SEALANT (DUM-DUM) IN THE SOCKET TO HOLD THE SCREWS FOR REINSTALLATION (DROPPING THE SOCKET MAY REQUIRE I/P REMOVAL TO RETRIEVE). INSTALL THE TWO SCREWS. 7 RECONNECT THE WIRING CONNECTOR TO THE ACTUATOR, LISTENING FOR A "CLICK" SOUND INDICATING IT HAS LOCKED IN PLACE.

PARTS INFORMATION

P/N DESCRIPTION QTY 16167292 ACTUATOR, AIR INLET 1

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME D1810 ACTUATOR, AIR INLET R+R USE PUBLISHED LABOR OPERATION TIME

FIGURES: 2

CAPTIONS: FIGURE 1 - MODE ACTUATOR LABELS 1) CORRECT ACTUATOR LABEL 2) INCORRECT ACTUATOR LABEL

FIGURE 2 - ACTUATOR LOCATION

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 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.