Lumina V6-204 3.4L DOHC (1991)
Figure 2
Figure 3
Service Information:
(Figures 1, 2, and 3)
If the transaxle exhibits a leak near the 1-2 servo and was built between Julian Date 172 (June 17, 1991) and Julian Date 186 (July 28, 1991) and has a
case casting die number of 594, stress cracks may be present. Inspect the case for stress cracks originating from the corner of the case casting slot. If
cracks are present, the transaxle case must be replaced.
Service Parts Information:
Part Number
Description
Model Usage
8668986
Package, Transaxle Service
1WJH, 1WMH, 1WPH, 1WXH
Case Assembly - Complete
1WWH, 1YDH, 1YHH
8668985
Package, Transaxle Service
1WFH, WYSH, WYTH
Case Assembly - Complete
Parts are currently available from GMSPO.
Labor Time Information:
Labor time should be charged under Operation Number K7800 from the 1991-1992 Labor Time Guide manual.
Service Manual Reference:
Refer to the appropriate 1991 Service Manual for the proper case replacement procedure.
