Campaign - Potential Machining Metal Chips In Engine: Overview

96-C-37

CAMPAIGN:
POTENTIAL MACHINING..

Issued:
06/01/96

CUSTOMER SATISFACTION CAMPAIGN

SUBJECT:
96-C-37-POTENTIAL MACHINING METAL CHIPS IN ENGINE

MODELS:
1996 BLAZERS/JIMMYS/BRAVADAS EQUIPPED WITH 4.3L ENGINE (L35) BUILT AT MORAINE ASSEMBLY PLANT

General Motors has decided that certain 1996 Blazer/Jimmy/Bravada model vehicles equipped with 4.3L engine (L35), built at the Moraine Assembly plant, may exhibit a condition in which an excessive amount of metal machining chips in the engine may cause degradation of the main bearings, resulting in bearing failures.

To correct this condition, dealers are to run an engine operation road test to determine whether excessive machining chips exist and replace the engine, if necessary, on vehicles in dealer inventory.


NOTICE:
It is anticipated that approximately five (5) percent of involved units will require engine replacement. Please follow the inspection procedure before notifying the Romulus Engine Plant that a replacement engine is required.





Involved are certain 1996 Blazer/Jimmy/Bravada model vehicles equipped with 4.3L engine (L35) and built within the following VIN breakpoints:

NOTICE:
Dealers should confirm vehicle eligibility through VISS (Vehicle Information Service System) or Service Net (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 have been prepared and are being furnished to involved dealers with the campaign bulletin. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.