Ninety-Eight V6-3800 3.8L (1989)
Figure 4 - Service Channel Plate
DATE OF PRODUCTION CHANGE:
Suspect HYDRA-MATIC 4T60 (THM 440-T4) transaxles were built from January 2, 1989 (Julian Date 002) through January 15, 1990 (Julian Date
016) with the "E" channel plate shown in figure 4.
On January 16, 1990 (Julian Date 016) a new channel plate, manual valve and inside detent lever will be used in production that incorporate all the
changes listed in this Service Bulletin. The new channel plate for production will not have an input accumulator bore (the service channel plate will still
have the input accumulator bore). A wave plate and extra input clutch plate will be added to the input houslng input clutch that will replace the function
of the input accumulator. These changes will be addressed in another Service Bulletin.
Service Procedure:
Order service parts from the "Service Parts Information" section of this bulletin. Also, check and/or correct the items listed below:
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Other conditions known to cause 4th clutch distress also include: damaged 3-4 accumulator piston seal, loose channel plate Torx(R) head bolt
(72), leaking driven sprocket, 4th clutch piston seals or missing # 1 check ball from a previous repair or leaking # 5 check ball.
NOTICE:
When repair of a distressed 4th clutch has been completed, it is essential to inspect and set the shift cable according to the procedures as
outlined in the transaxle on-vehicle service section of the appropriate service manual. To ensure proper cable set, place the driver lever
(shift lever inside the passenger compartment) against the reverse side of the neutral gate in the column or console prior to setting the
cable at the transaxle.
SERVICE NOTES:
The manual valve link (401) and rod end retaining spring (manual valve) (402) have not been revised for this change.
Service Parts Information:
