Seville STS V8-4.6L VIN 9 (1998)
CORRECTION
Reposition the vehicle speed sensor harness if pulled too tight and repair the vehicle speed sensor connector. If the vehicle speed sensor harness has been
inspected and no concern was found, then replace the case extension (134) and install the final drive internal gear retaining ring (135B) without corner
break. In some instances, the final drive internal gear (120) and the final drive carrier assembly (100) must also be replaced.
SERVICE INFORMATION/PROCEDURE
To repair a vehicle with a stretched wiring harness, perform the following steps:
1. Reposition the vehicle harness to vehicle speed sensor.
2. Repair the vehicle speed sensor connector. Refer to Testing for Intermittents and Poor Connections in Wiring Systems.
To repair a vehicle without a stretched wiring harness, perform the following steps:
1. Remove the transaxle case extension (134). Remove the differential carrier (110) and the final drive carrier (190). Remove the final drive internal
gear retaining ring (135A or 135B).
Important: Do not reuse a final drive internal gear retaining ring with a corner break (135A).
2. After the final drive internal gear retaining ring (1 35B) is installed, inspect the final drive internal gear (120) for movement relative to the
transmission case (6). If the final drive internal gear can be moved with moderate hand pressure relative to the case, install a new final drive
internal gear, and re-inspect the case to gear fit.
3. Inspect the final drive carrier assembly (100) for mis-machined pinion gear teeth. The appearance of each tooth shape when viewed from the major
diameter may not be uniform; some teeth may be sharp edged and some flat. Replace the carrier assembly if any teeth on any pinion are
mis-shaped.
4. Install a new transaxle case extension seal (126).
5. Install a new case extension (134).
SERVICE PARTS INFORMATION
Parts are currently available from GMSPO.
