Campaign - Intermediate Servo Cover Piston Bore: Overview

9218oldsmobile08

Number: 90-C-08

Date: March 1991

Section: 7A


Subject:
INTERMEDIATE SERVO COVER PISTON BORE

Models/Years:
1990 CUTLASS CALAIS WITH
2.5L ENGINE (VIN CODE U) AND HYDRA-MATIC 3T40 TRANSAXLE (RPO MD9)





CONDITION

General Motors has determined that some 1990 Oldsmobile Cutlass Calais model vehicles equipped with 2.5L (VIN Code U; RPO L68) engine and Hydra-Matic 3T40 (RPO MD9) transaxle may have been assembled with a Transaxle Intermediate Servo Cover with a rough piston bore. The rough finish could eventually wear the lip of the (inner) Intermediate Servo Seal (134 in Figure 2), causing a leak in the second clutch circuit (intermediate servo apply). This leak may cause Intermediate Band and Direct Clutch wear. This may cause a no second gear condition.

To prevent this condition from occurring, dealers are to inspect the transaxle I.D. plate on involved vehicles for Julian Dates, and if necessary, install an Intermediate Servo Cover Kit or replace the Transaxle as instructed in the SERVICE PROCEDURE section of this bulletin.


VEHICLES INVOLVED

Certain 1990 Oldsmobile Cutlass Calais model vehicles equipped with 2.5L (VIN Code U; RPO L68) engine and Hydra-Matic 3T40 (RPO MD9) transaxle within the following VIN breakpoints and Julian Dates:


Engine Transaxle Transaxle Transaxle Through and
VIN Code Model Code Julian Dates Beginning Including

U 3T40 (RPO MD9) PNC 194 thru 200 LM789321 LM790715


While all involved vehicles will require inspection of the transaxle I.D. plate for Julian dates, it is expected that only about 11% of inspected vehicles will require installation of the Intermediate Servo Cover Kit. Very few, if any, vehicles should require a SRTA Transaxle.

All vehicles listed on the dealer printout will require inspection, and, if necessary, repair. Other suspect vehicles should be checked for campaign involvement by utilizing the Vehicle Information Service System (V.I.S.S.).


DEALER ACTION

Dealers are to service all vehicles involved in this campaign, at no charge to owners, regardless of mileage, age of vehicle, or ownership.

Whenever a vehicle subject to this campaign is taken into your new or used car inventory, or it is in your dealership for service, you are to ensure the campaign correction has been made before selling or releasing the vehicle.

Dealers are to contact owners of vehicles recently sold from your new or used vehicle inventory and arrange for the campaign correction to be performed.