K 1500 Suburban 4WD V8-393 6.5L DSL Turbo VIN S (1996)
Technical Service Bulletin # 96-C-33A
Date: 960601
Campaign - Kinked A/T Auxiliary Oil Cooler Inlet Line
GMC TRUCK
96-C-33A
Issued: 06/01/96
CAMPAIGN: KINKED TRANS. AUX.....
CUSTOMER SATISFACTION CAMPAIGN
SUBJECT:
96-C-33(A)- KINKED TRANSMISSION AUXILIARY OIL COOLER INLET LINE
MODELS:
1996 K- PICKUPS & C/K SUBURBANS WITH DIESEL ENGINE (L56/L65) AND 4L80-E AUTOMATIC TRANSMISSION (MTI) BUILT AT
OSHAWA & JANESVILLE ASSEMBLY PLANTS
THIS CAMPAIGN UPDATES AND REPLACES GMC CAMPAIGN NUMBER 96-C-33, ISSUED JUNE 1996. REVISIONS HAVE BEEN MADE
TO THE CAMPAIGN NUMBER IN THE HEADER AND THE BEGINNING PARAGRAPH IN THE CUSTOMER LETTER.
ALL COPIES OF 96-C-33 SHOULD BE DESTROYED.
General Motors has decided that certain 1996 K- Pickups and C/K Suburbans with diesel engine (L56/L65) and 4L80-E automatic transmission (MT1)
built at Oshawa and Janesville Assembly Plants, may have a condition in which the automatic-transmission auxiliary oil-cooler inlet hose is kinked.
Restricted transmission fluid flow can result from this kinked hose, which can cause lack of lubrication to the transmission gear components. This can
result in premature wearing of load carrying members, which can lead to noises, slipping, and/or loss of gear ranges, and eventually complete loss of
transmission function. Further, since the kinked hose is not readily noticeable to the dealer, transmission replacement without correcting the kinked hose
condition can result in repeat transmission failures.
To correct this condition, dealers are to inspect for a kinked oil-cooler inlet hose. If it is kinked, a new hose will be installed, and if the vehicle has
customer usage, the transmission fluid will be changed.
Vehicles Involved
Involved are CERTAIN 1996 K Pickups and C/K Suburbans with L56/L65 6.5L diesel engines and 4LBO-E automatic transmissions built within the
VIN breakpoints.
***Not All Vehicles Between These VIN Breakpoints Are Involved In This Campaign ***
NOTICE:
Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) or ServiceNet (GMC only) prior to beginning
campaign repairs. [Not all vehicles within the above breakpoints may be involved]
Involved vehicles have been identified by Vehicle Identification Number. Computer listings containing the complete Vehicle Identification Number,
customer name and address data have been prepaired, and are being furnished to involved dealers with the campaign bulletin. The Customer name and
address data furnished will enable dealers to follow-up with customers involved in this campaign. Any dealer not receiving a computer listing with the
campaign bulletin has no involved vehicles currently assigned.
These dealer listings may contain customer 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.
Parts Information
Notice:
