Service Procedure
INSPECTION PROCEDURE:
1. Ensure the vehicle has a 4-speed (overdrive) automatic transayje option (transaxle shift lever indicator will have an overdrive "[D]" and a 3rd gear "D" range). Do NOT inspect vehicles equipped with the 3.4L Twin DOHC engine - this powertrain combination does not contain a 4T60 transaxle.
2. Lift the vehicle, following all safety precautions, and ensure the vehicle is properly supported (see section 0A of appropriate 1992 Oldsmobile Service Manual). Inspect the transaxle ID plate (Figure 1) and the case machining stamp (Figure 2) to determine if the vehicle needs to be tested.
If the vehicle has Julian date 282 to 297 (inclusive) AND the case machining stamp ends in "504", proceed to the TEST PROCEDURE.
NOTICE: The operation case machine stamp at the end of the barrel is stamped on a cast surface and may be difficult to read. If there is a question as to the legibility of the stamp, the TEST PROCEDURE MUST be performed on vehicles with transaxle Julian dates of 282 to 297 (inclusive).
If the Julian date on the transaxle is NOT 282 to 297 (inclusive), OR the case machine stamp does not end in "504", proceed to Step 8 and install a Campaign Identification Label.
TEST PROCEDURE:
IMPORTANT: Reverse band drag has been found to be temperature sensitive and may go away once the transaxle is up to operating temperature.
THE VEHICLE MUST SIT OUTSIDE OVERNIGHT, AND MUST NOT BE MOVED PRIOR TO PERFORMING THE TEST PROCEDURE.
This will insure that an accurate test is conducted.
3. Jack up the front end of the vehicle following all safety precautions given in Section 0A, and block the rear wheels to prevent the vehicle from rolling. Ensure the front wheels are off the ground, and the vehicle is properly supported. Start the vehicle and put the range selector in Overdrive "[D]" and accelerate to 40 MPH on the speedometer.
4. Release the accelerator and slowly apply the brakes to completely stop the wheels. Then put the range selector in Reverse, release the brakes, and idle for five (5) seconds.
5. Slowly apply the brakes to completely stop the wheels. Then put the range selector in Neutral. With your foot OFF the brake pedal, look at the drive wheel ON THE DRIVER'S SIDE of the vehicle. The wheel should be stopped or spinning in the forward direction (counter-clockwise) and can be easily stopped by applying resistance. If this is the case, proceed to Step 8 and apply a Campaign Identification Label. If not, proceed to Step 6.
6. If the wheel on the driver's side of the vehicle is spinning in reverse (clockwise), the transaxle MUST be changed. Replace the transaxle with the same model as shown on the transaxle ID plate (Figure 1). Proceed to Step 7.
REMOVE AND REPLACE PROCEDURE:
NOTICE: Write down the owner's preset memory settings which will be lost when the battery is disconnected for reference later when resetting the memory functions. Then, with the ignition in the "off" position, disconnect the negative battery cable.
7. Replace the transaxle, referring to the appropriate 1992 Oldsmobile Service Manual, section 7A, for the correct procedure.
NOTICE: Remember to flush the transaxle oil cooler and lines as noted in the Service Manual. Time is included in the Labor Operation for this procedure.
Reconnect the negative battery cable. Please reset (to the extent possible) all devices that lost their memory after the battery was disconnected. Notify the owner that some memory functions may have to be reset.
8. Install a Campaign Identification Label.
CAMPAIGN IDENTIFICATION LABEL
Each label provides space to print the campaign number, and the five (5) digit dealer code of the dealer performing the campaign. Insert this information with a typewriter or ballpoint pen. When installing label, clean and dry the surface of the radiator support tie bar and apply the campaign label where it is readily visible.