Bonneville V8-305 5.0L (1983)
10.
Install the transmission into the vehicle and road test.
II. For a condition of slipping 2-3 or no 2-3 shift or a combination of that and the condition diagnosed in Section 1, follow the Diagnosis Procedure in
Section I except as follows:
1.
During Step #6, also check the following:
a.
Check the valve body assembly to be certain the following valves are free: 3-2 control valve; 3-4 relay valve; 2-3 shift valve; and, 2-3
T.V. valve.
b.
Check the 3-4 accumulator piston and case bore for porosity, nicks, burrs, damaged ring grooves, or cut seal.
2.
During Step #8, also check the following:
a.
Be certain the three sealing balls are in the turbine shaft and they are not loose.
b.
If after checking all other possibilities you find no apparent cause for the condition you are diagnosing, replace both the input housing
and shaft assembly and the third accumulator retainer and ball assembly (part number 8634400).
After installing the third accumulator retainer and ball assembly, leak check it as follows:
Install the 2-4 servo piston assembly and cover.
Figure 3
Figure 4
Pour solvent (i.e., light oil or equivalent) into the third accumulator bore at the case oil passages (see Figures 3 and 4 below). Watch inside the case for
leakage.
3.
Reassemble the transmission. Replace any worn or damaged parts as necessary. Recheck the 2-4 servo pin length and be certain the clutch pack
and transmission end plays are correct.
4.
Install the transmission into the vehicle and road test. Refer to your Service Manual for installation procedures.
