Seville V8-273 4.5L (1989)
Service Procedure:
An intermittent harsh 3-2 shift may be caused by a broken 3-2 line control retainer (435). Refer to Figure 4. Remove the transaxle side cover to access
the 3-2 line control valve and, if necessary, replace a broken retainer with the part listed below. Also ensure the 3-2 fine control valve moves freely in its
bore.
P/N
Description
8658678
Retainer, 3-2 Line Control
Parts are currently available from GMSPO.
IV. Harsh 3-2 Shift At High Altitude* Only
1985-1990 DeVilles and Fleetwoods and 1986-1990 Eldorados and Sevilles
