This legal identifier is in the front corner of the instrument panel, on the driver side. It can be seen through the windshield from outside. The VIN also appears on the Vehicle Certification and Service Parts labels and certificates of title and registration.
Engine Identification
The eighth character in the VIN is the engine code.
This code identifies the vehicle's engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Specifications for the vehicle's engine code.
Chevrolet Cobalt Service & Repair Manual. Battery Cable, Replace
Ground Cable
Battery To Battery Tray
Caution: Unless directed otherwise,
the ignition and start switch must be in the OFF or LOCK position, and all
electrical loads must be OFF before servicing any electrical component.
Disconnect the battery ground to prevent an electrical spar ...