Harsh Part Throttle 3-2 Shift Conditions Information
I.A. Verv Harsh Part Throttle 3-2 Shift at 20-40 MPH1985-87 Cutlass Ciera 1985-87 Ninety-Eight 1986-87 Delta 88 1986-87 Toronado
FIGURE 2 - CHECK BALL LOCATIONS - CHANNEL PLATE:
Service Action:
A very harsh part throttle 3-2 shift at 20-40 mph may be caused by a missing or mislocated No. 2 3-2 control checkball (Figure 2). Remove the valve body to inspect for proper checkball location or damage to the spacer plate. A mislocated checkball may have bent the spacer plate. Also inspect the No. 12 1-2 servo feed checkball to insure it is seating properly.
1.B. Harsh 3-2 and/or 4-2 Shifts
1985-87 Cutlass Ciera 1985-87 Ninety-Eight 1986-87 Delta 88 1986-87 Toronado
FIGURE 3 - TYPICAL SPACER PLATE:
Service Action:
Harsh 3-2 and 4-2 shifts at any altitude may be caused by a missing or partial hole in the spacer plate. Remove the valve body and inspect the spacer plate for a missing or partial governor passage hole (No. 25) as shown in Figure 3. A partial hole can be drilled out using a No. 77 drill bit to meet the hole size requirement of .46 mm (.018"). If the hole is missing, use the spacer plate gasket and control valve body as a guide to locate and drill the hole, or replace the spacer plate.
I.C. Intermittent Harsh Part Throttle 3-2 Shift
1985-1/2 - All Models Except With 2.8L or 3.0L engines 1986 - All Models Except With 2.8L or 3.0L Engines and Transaxles Built Prior to July 2, 1986 (Julian Date 202)
FIGURE 4 - 3-2 LINE CONTROL VALVE LINE UP:
Service Action:
An intermittent harsh 3-2 shift may be caused by a broken 3-2 line control retainer (Item 435, 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 that the 3-2 line control valve moves freely in its bore.
Service Parts Information:
Part Number Description
8658678 Retainer, 3-2 Line Control