Service Procedure

To repair the vehicle, the following steps must be performed:

Drive the vehicle and confirm the following:

^ The noise is only present during a light acceleration or closed throttle deceleration between 20 and 40 mph (32 and 64 kmph).

^ The noise is not present in park or neutral ranges.

^ The noise is present in 2nd, 3rd or 4th gear (does not go away in 3rd gear).

If all the above conditions are met, the final drive assembly should be replaced.

1. Verify the transaxle model is one of the following:

5YMW, 5ASW, 6ASW or 7ASW

Use the VIN inquiry or have the dealer inspect the transaxle ID tag. If the transaxle is not one of these models, there is not a fix for the final drive noise in that model at this time.

2. On 1995 models, order the final drive assembly, a 1996 style 1-2 support and roller assembly, and a 1996 style sun drum.

On 1996 models, order the final drive package for the appropriate transaxle model as listed under Service Parts Information.

On 1997 models, order the final drive package for the appropriate transaxle.

Important:
Reflash of the PCM calibration is only required when the vehicle is equipped with a 7ASW transaxle model.

3. Install the quiet final drive assembly in the vehicle following the proper Service Manual procedure.

A phone call will be required to properly reprogram the PCM with a new calibration on 1997 H body vehicles with a 7ASW transaxle.

Call the Techline Customer Support Center (TCSC) at:

English 1 800 828 6860

French 1 800 503 3222

Inform the TCSC specialist that you are reconfiguring the vehicle due to the changes made to the transmission. You will need the vehicles VIN and the new calibration part number when you call TCSC. TCSC will provide you with a special number. The number is called a VCI which stands for Vehicle Configuration Index. This number is unique for each vehicle. The number will update the PCM with the new calibration. TCSC will also update their data base so that a phone call will not be required after you receive your next CD ROM disc.

Once you have the number from TCSC enter the Service Programming System, select SPECIAL, and then program by VCI. The correct calibration part number will be listed on the SPS summary screen. Continue with the programming process by selecting PROGRAM.