Service Parts Information:

Figure 1:

3-2 Control Valve Spring Transaxle Model Identification
Package Number (refer to Figure 1)

8646979 2WWH
8646980 2YBH, 2YCH, 2YKH
8646982 2WFH
8646979 1WWH, 1WSH, 1WXH, 1PAH
8646980 1YDH, 1CHH, 1YHH, 1CJH, 1YSH, 1CAH,
8646981 1WMH, 1BHH
8646982 1WJH, 1BJH, 1WPH, 1BWH, 1WFH, 1BDH,
1WDH, 1BAH
8646979 0PAH, 0WXH
8646980 0AAH, 0ABH, 0AFH, 0ANH, 0ATH, 0BFH,
0KCH, 0KDH, 0KPH, 0KRH, 0KLH, 0WHH
8646981 0BHH, 0WMH
8646982 0BAH, 0BDH, 0BWH, 0BJH, 0CJH, 0CHH,
0WDH, 0WFH, 0WPH, 0WJH
8646993 0LMH, 0LNH, 0YKH, 0YLH, 0YSH, 0YTH,
0YDH, 0YHH
8662932 0AJH, 0BPH, 0KHH, 0WNH
8646953 9AAH, 9ABH, 9AFH, 9ANH, 9ATH, 9AJH
8646980 9BPH, 9WRH
8646981 9BHH, 9PAH, 9WBH, 9WCH
8646982 9BAH, 9BDH, 9BJH, 9BWH, 9YCH, 9YAH,
9YBH, 9YJH, 9YFH
8646993 9BFH, 9BMH, 9WUH, 9WZH, 9VYH

8646994 9CDH, 9CLH, 9CPH, 9CYH, 9CZH
8662932 9PBH, 9WLH, 9WKH
8675936 9ACH, 9ADH, 9AHH (Use ALL
components in package EXCEPT
labels)
8646979 8FCH
8646982 8BKH, 8FBH
8646993 8BJH, 8BRH, 8BTH, 8BYH, 8FJH

8646979 7FCH, 7FZH
8646982 7FBH, 7FKH
8646993 7FJH, 7FNH, 7FRH, 7FTH

8646979 6BCH, 6BDH, 6BMH, 6BZH, 6FCH, 6FZH
8646980 6BAH
8646981 6ACH, 6AWH
8646982 6AAH, 6AMH, 6AFH, 6APH, 6ASH, 6AYH,
6BBH, 6BHH, 6FBH
8646983 6CMH, 6CNH, 6CEH


3-2 Control Valve Spring Transaxle Model Identification
Package Number (refer to Figure 1)

8646992 6BLH, 6BTH, 6BYH
8646993 6FTH, 6FYH
8646979 5BXH
8646981 5ACH, 5AYH, 5BWH
8646982 5AMH
8646983 5CMH, 5CNH
8646993 5BRH, 5CPH, 5CWH
8646994 5BVH

Parts are currently available from GMSPO.


Service Package Transaxle Model Identification
Number (Refer to Figure 1)

8646956 6CFH, 6CMH, 6HBH, 6HJH
5CM, 5CN, 5CP, 5CW, 5HA, 5HJ, 5HT
8646966 6AAH, 6ACH, 6AFH, 6AMH
5AF, 5AM
8646967 6ADH, 6ARH

Parts are currently available from GMSPO.

Service Notes:





A new vacuum line from the engine to the vacuum modulator MUST also be installed when using the service packages listed above. (Refer to Figure 7).

Part Number Vehicle Application

14062624 6000 Model

Parts are currently available from GMSPO.


Other items affecting harsh upshift conditions are:

- engine vacuum leaks
- sticking modulator valve
- restrictions in the vacuum lines such as paint in the modulator tube and/or carbon at the throttle body fitting.