Chevrolet Cobalt Service & Repair Manual: Engine Management

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Initialization Sequence The EBCM performs one initialization test each ignition cycle. The initialization of the EBCM occurs when the EBCM detects the there is a minimum of 500 RPM fro ...

Emission Controls

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Chevrolet Cobalt Service & Repair Manual. Tire & Wheel Assembly Rotate & Balance
A statically balanced wheel is balanced in one plane, around centerline of wheel. This prevents simple up and down movement relative to centerline of the wheel. A dynamically balanced wheel is balanced on both sides of hub. This reduces the chance of wobble off axis. Dynamic b ...