Where are the spark plugs located on a 2005 Chevy cavalier?

The spark plugs on a 2005 Chevy Cavalier are located on the top of the engine, under a plastic engine cover (if it still has one). To access them, you'll need to remove this cover. They are arranged in a V-shape following the cylinder layout of the engine. You'll have one spark plug per cylinder. The exact position will vary slightly depending on whether you have the 2.2L or the 2.4L engine. A repair manual specific to your car's engine size will show the exact location and the best way to access them.