Chevrolet Cobalt Service & Repair Manual: Ignition Systems

Precautions

Air Bag Systems Refer to "Air Bag System Precautions" on main menu selection for "Precautions." Battery Ground Cable Prior to service, disconnect battery ...

Description

This ignition system uses one coil for each pair of cylinders. Each pair of cylinders that are at Top Dead Center (TDC) at the same time are known as companion cylinders. The cylind ...

See also:

Chevrolet Cobalt Service & Repair Manual. Compression Pressure
When inspecting cylinder compression, the engine should be at room temperature, the throttle should be open, the spark plugs removed and the battery at full charge. The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less th ...