Windshield wiper blades should be inspected for wear or cracking. See Scheduled Maintenance for more information on wiper blade inspection.
Replacement blades come in different types and are removed in different ways. For proper type and length, see Maintenance Replacement Parts.
Here is how to remove the wiper blades: 1. Pull the windshield wiper arm away from the windshield.
2. Push the release lever and slide the wiper assembly toward the driver side of the vehicle.
3. Install a new blade by reversing Steps 1 and 2.
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 ...