For 1990-2009 cars

# INFO ON FULL SERVICE HYDRA-MATIC 4T65-E TRANS

#### SUBJECT: INFORMATION ON FULL SERVICE ON HYDRA-MATIC 4T65-E TRANSAXLE

#### MODELS: 1997 BUICK PARK AVENUE, RIVIERA 1997 CHEVROLET LUMINA, MONTE CARLO 1997-98 OLDSMOBILE LSS, INTRIGUE 1997 PONTIAC GRAND PRIX, BONNEVILLE SSEI WITH 3.4L, 3.8L ENGINES (VINS K, 1, X - RPOS L36, L67, LQ1) AND HYDRA-MATIC 4T65-E TRANSAXLE (RPO MN3, MN7, M15)

HYDRA-MATIC 4T65-E TRANSAXLE SERVICE UPDATE

UPDATED POLICY ALL VEHICLES PRODUCED WITH A 4T65-E TRANSAXLE ARE FULLY SERVICEABLE. MANY OF THE PARTS FOR THE 4T60-E TRANSAXLE WILL SERVICE THE 4T65-E TRANSAXLE. WHEN SERVICING A 4T65-E TRANSAXLE, ATTEMPT TO REPAIR THE TRANSAXLE USING THE AVAILABLE PARTS. IF A TRANSAXLE CANNOT BE REPAIRED, FOLLOW THE PROCEDURE FOR ORDERING A GOODWRENCH (SRTA) TRANSAXLE.

GENERAL SERVICE GUIDELINES WHEN SERVICING A 4T65-E TRANSAXLE, IF IT IS NECESSARY TO REMOVE THE PUMP BODY TO CASE BOLTS (206) OR VALVE BODY TO CASE BOLT (379). THESE BOLTS MUST BE REPLACED WITH NEW BOLTS. THE NEW BOLT IS STILL A M6 X 1.0 X 95.0 BUT THE HEX HEAD REQUIRES A 10 MM SOCKET AND THE TORQUE SPECIFICATION FOR THIS BOLT IS 16 N.M. IF THE TRANSAXLE YOU ARE SERVICING ALREADY HAS THE BOLT WITH A 10 MM HEAD, THE BOLTS DO NOT NEED TO BE REPLACED.

COOLER FLUSHING THE TRANSAXLE OIL COOLER MUST BE FLUSHED WHENEVER A TRANSAXLE IS REMOVED FROM THE VEHICLE FOR SERVICE OR IF FLUID CONTAMINATION IS SUSPECTED. USE THE KENT-MOORE TOOL J35944-A AND SOLVENT J35944-22 TO FLUSH THE COOLER. INSTRUCTIONS FOR USING THE COOLER FLUSHING TOOL ARE PUBLISHED IN THE TRANSAXLE ON-VEHICLE SERVICE SECTION OF EACH SERVICE MANUAL.

GOODWRENCH (SRTA) PROGRAM TRANSAXLE RETURNS THE GOODWRENCH SRTA TRANSMISSIONS ARE THE PRODUCT OF A HIGHLY SUCCESSFUL, CUSTOMER SATISFACTION DRIVEN PROGRAM THAT PARALLELS THE EXISTING HYDRA-MATIC 3T40, 4T60, 4T60-E, 4L30-E, 4L60, 4L60-E, 4L80-E AND 4T80-E PROGRAMS.

GMSPO PARTS DISTRIBUTION CENTERS ARE COMMITTED TO A 48 HOUR MAXIMUM DELIVERY TIME FOR ALL GOODWRENCH SRTA MODELS WITH NO VIP CHARGES (NINETY-SIX (96) HOURS FOR GM OF CANADA DEALERS).

THE GOODWRENCH SRTA TRANSAXLE CONTAINS AN INFORMATION PACKET THAT INCLUDES LIMITED WARRANTY INFORMATION, TRANSAXLE CORE EXCHANGE RETURN PROCEDURE INFORMATION, AND A PRE-ADDRESSED RETURN OF MAILING ENVELOPE.

IT IS IMPORTANT THAT THE PRODUCT FEEDBACK FORM BE PROPERLY COMPLETED BY THE TECHNICIAN OR SERVICE MANAGER AND INCLUDE ALL DIAGNOSTIC INFORMATION. THIS INFORMATION IS ESSENTIAL FOR PROPER ROOT CAUSE ANALYSIS. INSERT THE WHITE COPY OF THE COMPLETED FORM AND A COPY OF THE REPAIR ORDER INTO THE GOODWRENCH SRTA INFORMATION PACKET ENVELOPE, SEAL THE ENVELOPE AND WIRE TAG IT TO THE BELL HOUSING THE UNIT BEING RETURNED FOR TRANSAXLE CORE EXCHANGE. RETURN THE YELLOW COPY OF THE COMPLETED PRODUCT FEEDBACK FORM, USING THE POSTAGE PAID ENVELOPE, TO GM POWERTRAIN GROUP.

SERVICE PARTS INFORMATION REFER TO THE LATEST GMSPO PARTS CATALOG FOR PART NUMBERS OF GOODWRENCH SRTA TRANSAXLES AND SERVICE PARTS.

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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.