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October 4, 2018 Service bulletin

18305

Chevrolet technical service bulletin 18305 for 2013 Chevrolet Malibu and 2013-2014 Cadillac Ats.

Bulletin number
18305
Component
Engine
Summary
18305 - Customer Satisfaction Program. Certain vehicles, serviced with a replacement engine, may have a condition in which the service engine camshaft cap bolts were not tightened to specification during the manufacturing process. If the camshaft cap bolts were not tightened to specification, they may loosen, resulting in loss of propulsion, reduced engine performance, and possible engine failure. A ?Service Engine Soon? message may illuminate on the vehicle?s Driver Information Center. Inspect and torque engine camshaft cap bolts.

Owners of these vehicles have filed 278 complaints in the engine category.

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