Service Manager Letter

CHEVROLET BULLETIN

Origin No. SER-83
C.O. No. 90-248
Date: September 18, 1990
SUBJECT: PRODUCT CAMPAIGN 91C02 TORQUE CONVERTER DAMPER SPRING


TO: Service & Customer Satisfaction Managers DAC Managers


GOAL: To inspect and correct all units involved as indicated in the attached Product Campaign Bulletin.


ACTION: Dealers are to inspect and/or repair the vehicles as described in the bulletin.


DUE DATE:
C.O. CONTACT PERSON: R. J. Evanch, Product Campaign Manager, Technical Service Department, 8-227-6595


It has been determined that all 1991 R/V 2500 Suburbans and R/V 3500 Crew Cabs shipped prior to August 18, 1990 from the Flint Assembly Plant and equipped with electronic automatic transmissions have torque converters with suspect damper springs. These damper springs may fracture near the tip end resulting in noise and possible transmission failure.

To prevent this condition from occurring, dealers are to install a new torque converter on all involved vehicles according to the service procedures in the attached bulletin.

Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO).

Select dealers were originally advised of this campaign and involved VIN's by DCS Administrative Message 02-211 created on August 31, 1990.



The attached prorate sheet indicates the number of vehicles involved in each Branch.