For 1990-2009 cars

# 440-T4 AUTOMATIC TRANSAXLE REPAIR PROCEDURES

#### MODELS/YEARS: 1984-86 CUTLASS CIERA, 1985-86 NINETY-EIGHT & 1986 DELTA 88 & TORONADO

Since the introduction of the 440-T4 automatic transaxle in April 1984, most units requiring service have been replaced by Hydra-Matic Division through the Transaxle Exchange Program.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, dealers can perform ALL service operations on the 440-T4 or can obtain a complete unit replacement through the use of the new Service Replacement Transmission Assembly (SRTA) program.

SRTA represents an additional method of service dealers can offer the customer should repair 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). SRTA unit price information will be provided by WDDGM.

#### OLDSMOBILE POLICY

A Hydra-Matic Division booklet "440-T4 Service Replacement Transmission Assembly (SRTA)" which explains program details is being provided by your Business Management Contact division.

Disregard all references to zone authorization in the SRTA booklet. The decision to repair or use a SRTA unit is to be based on sound judgement. A general guideline of repair or replacement is listed on page 1 of the program booklet. Contact your zone office if further clarification is required.

#### DIAGNOSIS

Refer to the 1985 chassis service manual for diagnostic information. A service manual supplement on 1984-1985 1/2 440-T4 models will be sent to dealers in October 1985. To supplement the information in Dealer Technical Bulletin 85-T-28, 1985 1/2 valve body illustrations are enclosed.

Diagnostic assistance is available from the Technical Service Communication System. Additional 440-T4 diagnostic assistance is also available from your zone office.

#### TRAINING

A 440-T4 basic 3-day course and a one-day 440-T4 update course are available at General Motors Training Centers.

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.