Ninety-Eight FWD V6-181 3.0L (1985)
A harsh 3-2 coastdown bump may be caused by the 1-2 servo cushion spring. This condition may be corrected by replacing the 1-2 servo cushion spring
with the part listed below.
Refer to the chart below to determine the transaxle model and Julian Date when the new springs were first used in production units.
Transaxle
Build Date/
Model
Julian Date
7FBH
12-11-86/345
7FCH
12-11-86/345
7FJH
12-15-86/349
7FKH
12-11-86/345
7FNH
12-11-86/345
7FRH
12-17-87/351
Transaxle
Build Date/
Model
Julian Date
7FSH
12-11-86/345
7FTH
12-11-86/345
7FZH
12-12-86/346
7HAH
12-15-86/349
7HCH
12-18-86/352
FIGURE 6 - 1-2 SERVO ASSEMBLY
Service Parts Information:
Part Number
Description
8646457
1-2 servo cushion spring (item 559, Figure 6)
Service Notes:
If the above condition persists make sure the 3-2 coastdown valve (located in the oil pump body) is not stuck and moves freely in its bore.
Harsh Upshifts - High Altitude Only Information
VI. Harsh Upshifts - High Altitude Only
1985-86 Cutlass Ciera Equipped with 2.8L Engine and 440-T4 Transaxle
Service Action:
Harsh upshifts at high altitudes may be caused by high line presure due to low engine vacuum. This condition may be corrected on certain transaxle
models by installing the appropriate aneroid modulator service package
Service Package Contains:
(1)
Vacuum Modulator Asm.
(1)
Modulator Valve
(1)
O-Ring Seal
(1)
Spacer Plate
(5)
Gaskets
