440-T4 AUTOMATIC TRANSAXLE REPAIR PROCEDURES

THM 440-T4 ALL MODELS

Since the introduction of the 440-T4 automatic transaxle in March 1985, most units requiring service have been replaced by the Hydra-matic Division through the Transaxle Exchange Program. During the early part of 1985, dealers were able to perform certain on-car repairs to the 440-T4. Effective August 26, 1985, GM dealers can perform all service operations on the 440-T4 or complete unit replacement through use of the new Service Replacement Transmission Assembly (SRTA) Program.

SRTA represents an additional method of service Pontiac dealers can offer the customer should repairs become necessary on a 440-T4 automatic transaxle. The SRTA program is specifically designed to reduce vehicle downtime for the customer and enhance quality repair in the dealership. Effective August 26, 1985, the 440-T4 SRTA Program replaces the Transaxle Exchange Program. All parts needed to perform overhaul repair as well as SRTA units can be ordered directly from your local WDDGM Parts Distribution Center (PDC).

The following chart illustrates the repair comparison of the two options available to a dealer if diagnosis indicates that major repair is required to a 440-T4 transaxle.

REPAIR COMPARISON - SRTA VS OVERHAUL

REMOVE UNIT | | |---------------------------------------------| | | | | SRTA OVER UNIT HAUL | | | | | | | DISASSEMBLE-------INSPECT | UNIT COMPONENTS INSTALL SPTA | UNIT | | CORRECT AS | NECESSARY | | | INSTALL OVER- | | HAULED UNIT ---- REASSEMBLE | | UNIT | | --------------------------------------------- | | ROAD TEST VEHICLE | | Will require prior | zone authorization RETURN VEHICLE TO CUSTOMER

A booklet titled "440-T4 Service Replacement Transmission Assembly (SRTA)" has been issued to your dealership. Refer to it for further SRTA Program details.

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.