SMU - SECTION 7A - AUTOMATIC TRANSMISSION

REVISION: 09/05/97

THIS BULLETIN IS BEING REVISED TO INCLUDE UPDATES TO THE DIAGNOSTIC AIDS AND THE SYMPTOM DIAGNOSIS. PLEASE DISCARD CORPORATE BULLETIN 67-71-61 (SECTION 7--AUTOMATIC TRANSMISSION). ______________________________________________________________________

SUBJECT: SERVICE MANUAL UPDATE - SECTION 7A - AUTOMATIC TRANSMISSION

MODELS: 1996-97 CHEVROLET GEO TRACKER WITH HYDRA-MATIC 3L30 TRANSMISSION (RPO MD2)

THIS BULLETIN UPDATES THE 1996-97 GEO TRACKER AUTOMATIC TRANSMISSION 3L30 DIAGNOSIS SECTION. UPDATE YOUR SERVICE MANUAL WITH THE FOLLOWING INFORMATION. THE UPDATE IS AS FOLLOWS:

* CONDITIONS FOR SETTING THE DTC HAVE BEEN UPDATED * DTC P0740 TORQUE CONVERTER CLUTCH (TCC) CIRCUIT STEPS 24 AND 25 THE 'YES' AND 'NO' COLUMNS CORRECTED * DIAGNOSTIC AIDS UPDATED TO INCLUDE CHECKING THE TCC SOLENOID PIPES AND SEALS * FLUID PASSAGE ILLUSTRATION CORRECTED

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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 1997. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.