Where are the spark plugs located on a 2008 Chevy S10?

The spark plugs on a 2008 Chevy S10 are located on top of the engine, under the plastic engine cover (if equipped). They're arranged in a V-pattern if it's the V6 engine, or in a line if it has the inline-4 cylinder engine. You'll need to remove the engine cover to access them. Consult your owner's manual for the precise location and diagrams. There's usually one spark plug per cylinder.