Campaign Description
91buick01
Model Year 1990
Bulletin No. 90-C-10
File In Group 7125
Number 7
Date March, '91
SUBJECT: INTERMEDIATE SERVO COVER PISTON BORE
MODELS AFFECTED: CERTAIN 1990 SKYLARK WITH 2.5L ENGINE (VIN CODE U) AND 3T40 (125) TRANSAXLE (RPO MD9)
CONDITION
General Motors has determined that some 1990 Buick Skylark model vehicles equipped with 2.5L (VIN Code U; RPO L68) engine and 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
Involved are certain 1990 Buick Skylark model vehicles with 2.5L (VIN Code U; RPO L68) engine and 3T40 (RPO MD9) transaxle within the following VIN breakpoints and Julian dates:
TRANSAXLE THROUGH AND
YEAR MODEL JULIAN DATES BEGINNING INCLUDING
1990 SKYLARK 194 thru 200 LM084485 LM085568
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 repair, if necessary. Other suspect vehicles should be checked for campaign involvement by utilizing the Vehicle Information Service System (V.I.S.S.).
DEALER CAMPAIGN RESPONSIBILITY
Dealers are to service all vehicles involved in this campaign, at no charge to owners, regardless of mileage, age of vehicle, or ownership from this time forward.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin.
DEALER MATERIAL
If your dealership has vehicles involved in this campaign, you will receive the following items:
^ List of all vehicles involved in this campaign assigned to your dealership.
^ One (1) campaign Identification Label per vehicle involved.
Involved vehicles have been identified by Vehicle Identification Number Computer listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and are furnished to involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.
These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by Buick Motor Division (see copy of owner letter included with this bulletin).
CHANGE OF OWNER INFORMATION
Dealers are to use the Dealer Communication System (DCS) to provide Buick Motor Division with subsequent Buick owner information. By reporting a change of owner name or address of a vehicle in campaign status over the DCS, the need to send a CVAR form for that vehicle is eliminated. Terminal input instructions are covered in the DCS Manual under Section 9, Page 9-JO1A and B.